{"id":16960,"date":"2026-01-29T20:16:19","date_gmt":"2026-01-29T14:46:19","guid":{"rendered":"https:\/\/nvis.scientech.co.in\/?p=16960"},"modified":"2026-01-29T20:52:48","modified_gmt":"2026-01-29T15:22:48","slug":"lcr-meter-working-principle","status":"publish","type":"post","link":"https:\/\/nvis.scientech.co.in\/?p=16960","title":{"rendered":"LCR Meter Working Principle: How Inductance, Capacitance &#038; Resistance Are Measured"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"16960\" class=\"elementor elementor-16960\" data-elementor-post-type=\"post\">\n\t\t\t\t<div data-particle_enable=\"false\" data-particle-mobile-disabled=\"false\" class=\"elementor-element elementor-element-79665c9 e-flex e-con-boxed e-con e-parent\" data-id=\"79665c9\" data-element_type=\"container\" data-settings=\"{&quot;ekit_has_onepagescroll_dot&quot;:&quot;yes&quot;}\" data-core-v316-plus=\"true\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-90bd631 elementor-widget elementor-widget-text-editor\" data-id=\"90bd631\" data-element_type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<style>\/*! elementor - v3.20.0 - 26-03-2024 *\/\n.elementor-widget-text-editor.elementor-drop-cap-view-stacked .elementor-drop-cap{background-color:#69727d;color:#fff}.elementor-widget-text-editor.elementor-drop-cap-view-framed .elementor-drop-cap{color:#69727d;border:3px solid;background-color:transparent}.elementor-widget-text-editor:not(.elementor-drop-cap-view-default) .elementor-drop-cap{margin-top:8px}.elementor-widget-text-editor:not(.elementor-drop-cap-view-default) .elementor-drop-cap-letter{width:1em;height:1em}.elementor-widget-text-editor .elementor-drop-cap{float:left;text-align:center;line-height:1;font-size:50px}.elementor-widget-text-editor .elementor-drop-cap-letter{display:inline-block}<\/style>\t\t\t\t<h3>TL;DR &#8211;<\/h3><ul><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">This blog is written for electronics students, engineers, lab technicians, manufacturers, educators, and repair professionals who need accurate measurement of inductance, capacitance, and resistance in real-world applications.<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">An LCR meter measures L, C, and R by applying a known AC test signal and analyzing impedance, voltage, current, and phase angle instead of relying on simple DC measurement.<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">The lcr meter working principle is based on impedance analysis, where resistance and reactance (from inductance or capacitance) are separated using phase relationships.<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">By detecting whether current leads, lags, or stays in phase with voltage, the meter accurately identifies and calculates capacitance, inductance, or resistance values.<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">The digital LCR meter working principle improves accuracy and speed through digital signal processing, auto-ranging, and frequency selection, making it ideal for modern labs, R&amp;D, and quality control.<\/span><\/li><\/ul><h3><span style=\"font-weight: 400;\">Related Blogs &#8211;<\/span><\/h3><ul><li aria-level=\"1\"><a href=\"https:\/\/nvis.scientech.co.in\/how-analog-and-digital-multimeters-work\/\">How Analog and Digital Multimeters Work<\/a><\/li><\/ul><ul><li aria-level=\"1\"><a href=\"https:\/\/nvis.scientech.co.in\/how-practical-labs-make-technical-education-and-skilling-industry-driven\/\">How Practical Labs Make Technical Education and Skilling Industry-Driven<\/a><\/li><\/ul><ul><li aria-level=\"1\"><a href=\"https:\/\/nvis.scientech.co.in\/why-embedded-systems-labs-are-essential-for-future-ready-engineers\/\">Why Embedded Systems Labs Are Essential for Future-Ready Engineers<\/a><\/li><\/ul><p>\u00a0<\/p><p><span style=\"font-weight: 400;\">An LCR meter is a sensitive instrument used to measure inductance (L), capacitance (C), and resistance (R) by applying an AC test signal and analyzing impedance, phase angle, voltage, and current. Understanding the <\/span><a href=\"https:\/\/nvis.scientech.co.in\/product-category\/industry\/lcr-meters\/\"><span style=\"font-weight: 400;\">LCR meter working<\/span><\/a><span style=\"font-weight: 400;\"> principle enables engineers, technicians, students, and manufacturers to obtain accurate component measurements for testing, design, quality control, and troubleshooting. Precision is important whether you are testing a capacitor on a PCB, checking an inductor in a power supply, or verifying resistor tolerances in a production process.<\/span><\/p><p><span style=\"font-weight: 400;\">A LCR meter is a type of meter created to measure passive components with significantly higher precision than any ordinary multimeter. Although a multimeter can measure the value of resistance and approximately determine the value of capacitance, it cannot analyze frequency-dependent behavior or phase relationships, both of which are required of inductors and capacitors.<\/span><\/p><h2>What Does an LCR Meter Measure?<\/h2><p><span style=\"font-weight: 400;\">We will discuss the working principle but first, it would be appropriate to take a quick review of the three parameters measured.<\/span><\/p><p>Inductance (L)<\/p><p><span style=\"font-weight: 400;\">Resistance to varying currents in a magnetic field by storing energy in a component (usually a coil) is known as inductance. It is expressed in henries (H), and very frequency-dependent.<\/span><\/p><p>Capacitance (C)<\/p><p><span style=\"font-weight: 400;\">The capacity of a component to store electrical energy in an electric field is called Capacitance. It is expressed in farads (F) and it depends on the frequency, temperature and dielectric material.<\/span><\/p><p>Resistance (R)<\/p><p><span style=\"font-weight: 400;\">Resistance is the opposition to the flow of electric current and is expressed as ohms (\u03a9). Resistance is theoretically frequency-independent, in contrast to inductance and capacitance, but in practice, components exhibit parasitic effects.<\/span><\/p><p><span style=\"font-weight: 400;\">All three are measured on an LCR meter, which measures the behavior of a component when it is exposed to an AC signal.<\/span><\/p><h2>The LCR Meter Working Principle<\/h2><p><span style=\"font-weight: 400;\">LCR meter working principle is based on measuring the impedance of a component when it is excited by a known AC test signal. Measuring the reaction of the component to this signal, that is, the value of both voltage and current, and the angle between them, the meter will precisely decide whether the component is a resistor, capacitor, or inductor, and compute its value.<\/span><\/p><p><span style=\"font-weight: 400;\">The principle of working of the LCR meter is impedance measurement which enables the instrument to analyze the response of a component to an alternating current (AC) signal.<\/span><\/p><p><span style=\"font-weight: 400;\">Impedance (Z) is the total opposition a circuit presents to alternating current. Unlike simple resistance in DC circuits, impedance consists of resistance (R) and reactance (X).<\/span><\/p><ul><li style=\"font-weight: 400;\" aria-level=\"1\">Resistance (R)<\/li><li style=\"font-weight: 400;\" aria-level=\"1\">Reactance (X)<span style=\"font-weight: 400;\"> from inductance or capacitance<\/span><\/li><\/ul><p><span style=\"font-weight: 400;\">The fundamental relationship is:<\/span><\/p><ul><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Inductive reactance: <\/span>XL = 2\u03c0fL<\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Capacitive reactance: <\/span>XC = 1 \/ (2\u03c0fC)<\/li><\/ul><p><span style=\"font-weight: 400;\">By applying a known AC signal and measuring:<\/span><\/p><ul><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Voltage (V)<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Current (I)<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Phase angle (\u03b8) between them<\/span><\/li><\/ul><p><span style=\"font-weight: 400;\">The LCR meter establishes whether the component is mostly a resistor, capacitor or inductor and calculates it.<\/span><\/p><h2>Nvis 9303T Digital LCR Meter \u2013 Overview<\/h2><p><span style=\"font-weight: 400;\">The <\/span>Nvis 9303T<span style=\"font-weight: 400;\"> is a digital LCR meter designed for accurate measurement of passive electronic components like inductors (L), capacitors (C), and resistors (R). It\u2019s typically used in quality control, incoming inspection of components, and automated test systems in industrial and laboratory environments.\u00a0<\/span><\/p><table><tbody><tr><td><p>Parameter<\/p><\/td><td><p>Frequency<\/p><\/td><td><p>Typical Range (example)<\/p><\/td><\/tr><tr><td><p>Capacitance (C)<\/p><\/td><td><p><span style=\"font-weight: 400;\">1 kHz<\/span><\/p><\/td><td><p><span style=\"font-weight: 400;\">0.1 pF \u2013 9999.9 pF<\/span><\/p><\/td><\/tr><tr><td>\u00a0<\/td><td><p><span style=\"font-weight: 400;\">10 kHz<\/span><\/p><\/td><td><p><span style=\"font-weight: 400;\">0.01 pF \u2013 999.99 pF<\/span><\/p><\/td><\/tr><tr><td><p>Inductance (L)<\/p><\/td><td><p><span style=\"font-weight: 400;\">1 kHz<\/span><\/p><\/td><td><p><span style=\"font-weight: 400;\">0.1 pH \u2013 9999.9 H<\/span><\/p><\/td><\/tr><tr><td>\u00a0<\/td><td><p><span style=\"font-weight: 400;\">10 kHz<\/span><\/p><\/td><td><p><span style=\"font-weight: 400;\">0.01 pH \u2013 999.99 H<\/span><\/p><\/td><\/tr><tr><td><p>Dissipation \/ Quality<\/p><\/td><td><p><span style=\"font-weight: 400;\">All<\/span><\/p><\/td><td><p><span style=\"font-weight: 400;\">D: 0.0001 \u2013 9.999, Q: 0.0001 \u2013 9999<\/span><\/p><\/td><\/tr><\/tbody><\/table><p>\u00a0<\/p><h2>How an LCR Meter Works: Step-by-Step<\/h2><p><span style=\"font-weight: 400;\">When the lcr meter working process is divided into a logical sequence the process becomes much clearer. Each step is based on the <\/span><a href=\"https:\/\/nvis.scientech.co.in\/product-category\/industry\/lcr-meters\/\"><span style=\"font-weight: 400;\">LCR meter working<\/span><\/a><span style=\"font-weight: 400;\"> principle of AC impedance measurement and phase analysis.<\/span><\/p><h3>1 AC Signal Generation<\/h3><p><span style=\"font-weight: 400;\">The LCR meter generates a stable AC test signal using an internal oscillator. Common test frequencies include:<\/span><\/p><ul><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">100 Hz<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">120 Hz<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">1 kHz<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">10 kHz<\/span><span style=\"font-weight: 400;\"><br \/><\/span><span style=\"font-weight: 400;\">Some advanced meters offer selectable or automatic frequency ranges.<\/span><\/li><\/ul><h3>2 Applying the Test Signal to the Component<\/h3><p><span style=\"font-weight: 400;\">The component under test (DUT) is connected using:<\/span><\/p><ul><li style=\"font-weight: 400;\" aria-level=\"1\">Two-terminal method<span style=\"font-weight: 400;\"> (basic measurements)<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\">Four-terminal (Kelvin) method<span style=\"font-weight: 400;\"> for higher accuracy<\/span><\/li><\/ul><p><span style=\"font-weight: 400;\">The four-terminal method eliminates errors caused by lead resistance and contact impedance.<\/span><\/p><h3>3 Measuring Voltage and Current<\/h3><p><span style=\"font-weight: 400;\">Precision circuits inside the meter measure the voltage across and current through the component. These measurements form the basis of impedance calculation.<\/span><\/p><h3>4 Phase Angle Detection<\/h3><p><span style=\"font-weight: 400;\">The phase difference between voltage and current reveals the component type:<\/span><\/p><ul><li style=\"font-weight: 400;\" aria-level=\"1\">0\u00b0 phase shift<span style=\"font-weight: 400;\"> &#8211; Pure resistance<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\">Current leads voltage<span style=\"font-weight: 400;\"> &#8211; Capacitive behavior<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\">Current lags voltage<span style=\"font-weight: 400;\"> &#8211; Inductive behavior<\/span><\/li><\/ul><h3>5 Parameter Calculation and Display<\/h3><p><span style=\"font-weight: 400;\">Using digital signal processing, the meter calculates L, C, or R and displays the value on the screen, often along with:<\/span><\/p><ul><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Quality factor (Q)<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Dissipation factor (D)<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Equivalent series resistance (ESR)<\/span><\/li><\/ul><h2>How Inductance, Capacitance &amp; Resistance Are Measured<\/h2><p><span style=\"font-weight: 400;\">An LCR meter is an inductance, capacitance, and resistance meter that uses the same basic principle, which is the analysis of AC impedance, but presents the results differently, based on the behavior of the component to the signal applied to it. In this section, the extracting principle of each parameter is detailed according to the <\/span><a href=\"https:\/\/nvis.scientech.co.in\/product-category\/industry\/lcr-meters\/\"><span style=\"font-weight: 400;\">lcr meter working principle.<\/span><\/a><\/p><h3>How Resistance (R) Is Measured<\/h3><p><span style=\"font-weight: 400;\">When a purely resistive component is tested:<\/span><\/p><ul><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Voltage and current remain <\/span>in phase<span style=\"font-weight: 400;\"> (0\u00b0 phase angle)<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">There is <\/span>no reactive component<span style=\"font-weight: 400;\"> (no energy storage)<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Impedance is equal to resistance<\/span><\/li><\/ul><p><span style=\"font-weight: 400;\">The LCR meter calculates resistance using:<\/span><\/p><ul><li style=\"font-weight: 400;\" aria-level=\"1\">R = V \/ I<\/li><\/ul><p><span style=\"font-weight: 400;\">The meter uses an AC signal even in measuring resistance. This enables it to sense parasitic inductance or capacitance which a DC multimeter would not, and makes the measurement more realistic of actual parts.<\/span><\/p><h3>How Capacitance (C) Is Measured<\/h3><p><span style=\"font-weight: 400;\">For capacitors, the current <\/span>leads the voltage<span style=\"font-weight: 400;\">, creating a negative phase angle.<\/span><\/p><p><span style=\"font-weight: 400;\">Measurement process:<\/span><\/p><ul><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">The meter applies a known AC frequency<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">It measures voltage, current, and phase angle<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Capacitive reactance is calculated:<\/span><ul><li style=\"font-weight: 400;\" aria-level=\"2\">XC = 1 \/ (2\u03c0fC)<\/li><\/ul><\/li><\/ul><p><span style=\"font-weight: 400;\">From this relationship, the meter computes capacitance:<\/span><\/p><ul><li style=\"font-weight: 400;\" aria-level=\"1\">C = 1 \/ (2\u03c0fXC)<\/li><\/ul><p><span style=\"font-weight: 400;\">Since the capacitance depends on the frequency and dielectric losses, the LCR meters can be configured to use realistic and application relevant frequencies (usually 100 Hz or 1 kHz).<\/span><\/p><h3>How Inductance (L) Is Measured<\/h3><p><span style=\"font-weight: 400;\">For inductors, the current <\/span>lags behind the voltage<span style=\"font-weight: 400;\">, producing a positive phase angle.<\/span><\/p><p><span style=\"font-weight: 400;\">Measurement process:<\/span><\/p><ul><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">The AC signal causes energy storage in a magnetic field<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Inductive reactance is calculated:<\/span><ul><li style=\"font-weight: 400;\" aria-level=\"2\">XL = 2\u03c0fL<\/li><\/ul><\/li><\/ul><p><span style=\"font-weight: 400;\">The meter then determines inductance:<\/span><\/p><ul><li style=\"font-weight: 400;\" aria-level=\"1\">L = XL \/ (2\u03c0f)<\/li><\/ul><p><span style=\"font-weight: 400;\">Higher test frequencies are often used to improve sensitivity, especially for small inductance values.<\/span><\/p><h3>Why This Measurement Method Matters<\/h3><p><span style=\"font-weight: 400;\">By gauging the behavior of a component under AC conditions, an LCR meter provides:<\/span><\/p><ul><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">More realistic values than DC testing<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Higher accuracy for frequency-sensitive components<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Reliable data for quality control, testing, and design<\/span><\/li><\/ul><p>Inductance, capacitance, and resistance are measured by observing how voltage and current interact under AC excitation<span style=\"font-weight: 400;\">, making the LCR meter an essential tool for precise electronic component analysis.<\/span><\/p><h2>Accuracy Factors in LCR Measurement<\/h2><p><span style=\"font-weight: 400;\">Even the best LCR meter requires proper usage to achieve accurate results.<\/span><\/p><h3>Common Influencing Factors<\/h3><ul><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Test lead length and quality<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Stray capacitance and inductance<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Component temperature<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Calibration status<\/span><\/li><\/ul><p><span style=\"font-weight: 400;\">High-end meters include <\/span>open, short, and load compensation<span style=\"font-weight: 400;\"> to eliminate systematic errors.<\/span><\/p><h2>Analog vs Digital LCR Meter Working<\/h2><table><tbody><tr><td><p>Feature<\/p><\/td><td><p>Analog LCR Meter<\/p><\/td><td><p>Digital LCR Meter<\/p><\/td><\/tr><tr><td><p><span style=\"font-weight: 400;\">Accuracy<\/span><\/p><\/td><td><p><span style=\"font-weight: 400;\">Moderate<\/span><\/p><\/td><td><p><span style=\"font-weight: 400;\">High<\/span><\/p><\/td><\/tr><tr><td><p><span style=\"font-weight: 400;\">Ease of use<\/span><\/p><\/td><td><p><span style=\"font-weight: 400;\">Manual balancing<\/span><\/p><\/td><td><p><span style=\"font-weight: 400;\">Automatic<\/span><\/p><\/td><\/tr><tr><td><p><span style=\"font-weight: 400;\">Measurement speed<\/span><\/p><\/td><td><p><span style=\"font-weight: 400;\">Slow<\/span><\/p><\/td><td><p><span style=\"font-weight: 400;\">Fast<\/span><\/p><\/td><\/tr><tr><td><p><span style=\"font-weight: 400;\">Data display<\/span><\/p><\/td><td><p><span style=\"font-weight: 400;\">Scale-based<\/span><\/p><\/td><td><p><span style=\"font-weight: 400;\">Numeric + parameters<\/span><\/p><\/td><\/tr><tr><td><p><span style=\"font-weight: 400;\">Modern usage<\/span><\/p><\/td><td><p><span style=\"font-weight: 400;\">Limited<\/span><\/p><\/td><td><p><span style=\"font-weight: 400;\">Industry standard<\/span><\/p><\/td><\/tr><\/tbody><\/table><p><span style=\"font-weight: 400;\">Due to efficiency and precision, digital models dominate today\u2019s laboratories.<\/span><\/p><h2>Conclusion<\/h2><p><span style=\"font-weight: 400;\">The working principle of an LCR meter is based on a simple yet powerful concept, which involves using a known AC signal and observing the response of a component. Through impedance and phase relation measurements, an LCR meter can accurately measure inductance, capacitance, and resistance, which are important parameters in modern electronics.<\/span><\/p><p><span style=\"font-weight: 400;\">Understanding the principles of <\/span><a href=\"https:\/\/nvis.scientech.co.in\/product-category\/industry\/lcr-meters\/\"><span style=\"font-weight: 400;\">lcr meter working<\/span><\/a><span style=\"font-weight: 400;\"> is not only going to enhance the accuracy of measurements, but also assist the user to identify the correct instrument to use, prevent certain mistakes, and analyze the results properly. With the further development of electronics, tthe digital LCR meter working principle enables faster, smarter, and more reliable component testing of components in education, industry and research.<\/span><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div data-particle_enable=\"false\" data-particle-mobile-disabled=\"false\" class=\"elementor-element elementor-element-00427fc e-flex e-con-boxed e-con e-parent\" data-id=\"00427fc\" data-element_type=\"container\" data-settings=\"{&quot;ekit_has_onepagescroll_dot&quot;:&quot;yes&quot;}\" data-core-v316-plus=\"true\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-8be8856 elementor-widget elementor-widget-heading\" data-id=\"8be8856\" data-element_type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<style>\/*! elementor - v3.20.0 - 26-03-2024 *\/\n.elementor-heading-title{padding:0;margin:0;line-height:1}.elementor-widget-heading .elementor-heading-title[class*=elementor-size-]>a{color:inherit;font-size:inherit;line-height:inherit}.elementor-widget-heading .elementor-heading-title.elementor-size-small{font-size:15px}.elementor-widget-heading .elementor-heading-title.elementor-size-medium{font-size:19px}.elementor-widget-heading .elementor-heading-title.elementor-size-large{font-size:29px}.elementor-widget-heading .elementor-heading-title.elementor-size-xl{font-size:39px}.elementor-widget-heading .elementor-heading-title.elementor-size-xxl{font-size:59px}<\/style><h2 class=\"elementor-heading-title elementor-size-default\">FAQs<\/h2>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div data-particle_enable=\"false\" data-particle-mobile-disabled=\"false\" class=\"elementor-element elementor-element-099a544 e-flex e-con-boxed e-con e-parent\" data-id=\"099a544\" data-element_type=\"container\" data-settings=\"{&quot;ekit_has_onepagescroll_dot&quot;:&quot;yes&quot;}\" data-core-v316-plus=\"true\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-9c54f5a elementor-widget elementor-widget-accordion\" data-id=\"9c54f5a\" data-element_type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"accordion.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<style>\/*! elementor - v3.20.0 - 26-03-2024 *\/\n.elementor-accordion{text-align:left}.elementor-accordion .elementor-accordion-item{border:1px solid #d5d8dc}.elementor-accordion .elementor-accordion-item+.elementor-accordion-item{border-top:none}.elementor-accordion .elementor-tab-title{margin:0;padding:15px 20px;font-weight:700;line-height:1;cursor:pointer;outline:none}.elementor-accordion .elementor-tab-title .elementor-accordion-icon{display:inline-block;width:1.5em}.elementor-accordion .elementor-tab-title .elementor-accordion-icon svg{width:1em;height:1em}.elementor-accordion .elementor-tab-title .elementor-accordion-icon.elementor-accordion-icon-right{float:right;text-align:right}.elementor-accordion .elementor-tab-title .elementor-accordion-icon.elementor-accordion-icon-left{float:left;text-align:left}.elementor-accordion .elementor-tab-title .elementor-accordion-icon .elementor-accordion-icon-closed{display:block}.elementor-accordion .elementor-tab-title .elementor-accordion-icon .elementor-accordion-icon-opened,.elementor-accordion .elementor-tab-title.elementor-active .elementor-accordion-icon-closed{display:none}.elementor-accordion .elementor-tab-title.elementor-active .elementor-accordion-icon-opened{display:block}.elementor-accordion .elementor-tab-content{display:none;padding:15px 20px;border-top:1px solid #d5d8dc}@media (max-width:767px){.elementor-accordion .elementor-tab-title{padding:12px 15px}.elementor-accordion .elementor-tab-title .elementor-accordion-icon{width:1.2em}.elementor-accordion .elementor-tab-content{padding:7px 15px}}.e-con-inner>.elementor-widget-accordion,.e-con>.elementor-widget-accordion{width:var(--container-widget-width);--flex-grow:var(--container-widget-flex-grow)}<\/style>\t\t<div class=\"elementor-accordion\">\n\t\t\t\t\t\t\t<div class=\"elementor-accordion-item\">\n\t\t\t\t\t<div id=\"elementor-tab-title-1631\" class=\"elementor-tab-title\" data-tab=\"1\" role=\"button\" aria-controls=\"elementor-tab-content-1631\" aria-expanded=\"false\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-accordion-icon elementor-accordion-icon-left\" aria-hidden=\"true\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-accordion-icon-closed\"><svg class=\"e-font-icon-svg e-fas-plus\" viewBox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 208H272V64c0-17.67-14.33-32-32-32h-32c-17.67 0-32 14.33-32 32v144H32c-17.67 0-32 14.33-32 32v32c0 17.67 14.33 32 32 32h144v144c0 17.67 14.33 32 32 32h32c17.67 0 32-14.33 32-32V304h144c17.67 0 32-14.33 32-32v-32c0-17.67-14.33-32-32-32z\"><\/path><\/svg><\/span>\n\t\t\t\t\t\t\t\t<span class=\"elementor-accordion-icon-opened\"><svg class=\"e-font-icon-svg e-fas-minus\" viewBox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 208H32c-17.67 0-32 14.33-32 32v32c0 17.67 14.33 32 32 32h384c17.67 0 32-14.33 32-32v-32c0-17.67-14.33-32-32-32z\"><\/path><\/svg><\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"elementor-accordion-title\" tabindex=\"0\">What is the working principle of an LCR meter?<\/a>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t<div id=\"elementor-tab-content-1631\" class=\"elementor-tab-content elementor-clearfix\" data-tab=\"1\" role=\"region\" aria-labelledby=\"elementor-tab-title-1631\"><p><span style=\"font-weight: 400;\">An LCR meter is a device that uses a known AC test signal applied to a component and measures the impedance of the component which is the voltage, current and the phase angle. Based on these values, the meter determines whether the component behaves as a resistor, capacitor, or inductor and calculates its precise value.<\/span><\/p><\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<div class=\"elementor-accordion-item\">\n\t\t\t\t\t<div id=\"elementor-tab-title-1632\" class=\"elementor-tab-title\" data-tab=\"2\" role=\"button\" aria-controls=\"elementor-tab-content-1632\" aria-expanded=\"false\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-accordion-icon elementor-accordion-icon-left\" aria-hidden=\"true\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-accordion-icon-closed\"><svg class=\"e-font-icon-svg e-fas-plus\" viewBox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 208H272V64c0-17.67-14.33-32-32-32h-32c-17.67 0-32 14.33-32 32v144H32c-17.67 0-32 14.33-32 32v32c0 17.67 14.33 32 32 32h144v144c0 17.67 14.33 32 32 32h32c17.67 0 32-14.33 32-32V304h144c17.67 0 32-14.33 32-32v-32c0-17.67-14.33-32-32-32z\"><\/path><\/svg><\/span>\n\t\t\t\t\t\t\t\t<span class=\"elementor-accordion-icon-opened\"><svg class=\"e-font-icon-svg e-fas-minus\" viewBox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 208H32c-17.67 0-32 14.33-32 32v32c0 17.67 14.33 32 32 32h384c17.67 0 32-14.33 32-32v-32c0-17.67-14.33-32-32-32z\"><\/path><\/svg><\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"elementor-accordion-title\" tabindex=\"0\">Why does an LCR meter use AC instead of DC?<\/a>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t<div id=\"elementor-tab-content-1632\" class=\"elementor-tab-content elementor-clearfix\" data-tab=\"2\" role=\"region\" aria-labelledby=\"elementor-tab-title-1632\"><p><span style=\"font-weight: 400;\">Inductance and capacitance are its frequency-dependents that cannot be accurately measured by DC. The AC signal enables the LCR meter to measure reactance and phase shift that is needed to calculate the values of L and C.<\/span><\/p><\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<div class=\"elementor-accordion-item\">\n\t\t\t\t\t<div id=\"elementor-tab-title-1633\" class=\"elementor-tab-title\" data-tab=\"3\" role=\"button\" aria-controls=\"elementor-tab-content-1633\" aria-expanded=\"false\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-accordion-icon elementor-accordion-icon-left\" aria-hidden=\"true\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-accordion-icon-closed\"><svg class=\"e-font-icon-svg e-fas-plus\" viewBox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 208H272V64c0-17.67-14.33-32-32-32h-32c-17.67 0-32 14.33-32 32v144H32c-17.67 0-32 14.33-32 32v32c0 17.67 14.33 32 32 32h144v144c0 17.67 14.33 32 32 32h32c17.67 0 32-14.33 32-32V304h144c17.67 0 32-14.33 32-32v-32c0-17.67-14.33-32-32-32z\"><\/path><\/svg><\/span>\n\t\t\t\t\t\t\t\t<span class=\"elementor-accordion-icon-opened\"><svg class=\"e-font-icon-svg e-fas-minus\" viewBox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 208H32c-17.67 0-32 14.33-32 32v32c0 17.67 14.33 32 32 32h384c17.67 0 32-14.33 32-32v-32c0-17.67-14.33-32-32-32z\"><\/path><\/svg><\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"elementor-accordion-title\" tabindex=\"0\">What is the difference between series and parallel modes in an LCR meter?<\/a>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t<div id=\"elementor-tab-content-1633\" class=\"elementor-tab-content elementor-clearfix\" data-tab=\"3\" role=\"region\" aria-labelledby=\"elementor-tab-title-1633\"><p><span style=\"font-weight: 400;\">The series mode applies in cases where resistive losses are the most important (usually when the inductance is small and the capacitors of interest are very low-value), whereas the parallel mode is used where leakage losses or parallel resistance are important (large capacitors).<\/span><\/p><\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<div class=\"elementor-accordion-item\">\n\t\t\t\t\t<div id=\"elementor-tab-title-1634\" class=\"elementor-tab-title\" data-tab=\"4\" role=\"button\" aria-controls=\"elementor-tab-content-1634\" aria-expanded=\"false\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-accordion-icon elementor-accordion-icon-left\" aria-hidden=\"true\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-accordion-icon-closed\"><svg class=\"e-font-icon-svg e-fas-plus\" viewBox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 208H272V64c0-17.67-14.33-32-32-32h-32c-17.67 0-32 14.33-32 32v144H32c-17.67 0-32 14.33-32 32v32c0 17.67 14.33 32 32 32h144v144c0 17.67 14.33 32 32 32h32c17.67 0 32-14.33 32-32V304h144c17.67 0 32-14.33 32-32v-32c0-17.67-14.33-32-32-32z\"><\/path><\/svg><\/span>\n\t\t\t\t\t\t\t\t<span class=\"elementor-accordion-icon-opened\"><svg class=\"e-font-icon-svg e-fas-minus\" viewBox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 208H32c-17.67 0-32 14.33-32 32v32c0 17.67 14.33 32 32 32h384c17.67 0 32-14.33 32-32v-32c0-17.67-14.33-32-32-32z\"><\/path><\/svg><\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"elementor-accordion-title\" tabindex=\"0\">Why do LCR meter readings change with frequency?<\/a>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t<div id=\"elementor-tab-content-1634\" class=\"elementor-tab-content elementor-clearfix\" data-tab=\"4\" role=\"region\" aria-labelledby=\"elementor-tab-title-1634\"><p><span style=\"font-weight: 400;\">Since reactance varies with frequency, capacitor and inductor impedance vary with the test frequency. The loss and material properties also change with the frequency, which interferes with the measurement outcomes.<\/span><\/p><\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<div class=\"elementor-accordion-item\">\n\t\t\t\t\t<div id=\"elementor-tab-title-1635\" class=\"elementor-tab-title\" data-tab=\"5\" role=\"button\" aria-controls=\"elementor-tab-content-1635\" aria-expanded=\"false\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-accordion-icon elementor-accordion-icon-left\" aria-hidden=\"true\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-accordion-icon-closed\"><svg class=\"e-font-icon-svg e-fas-plus\" viewBox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 208H272V64c0-17.67-14.33-32-32-32h-32c-17.67 0-32 14.33-32 32v144H32c-17.67 0-32 14.33-32 32v32c0 17.67 14.33 32 32 32h144v144c0 17.67 14.33 32 32 32h32c17.67 0 32-14.33 32-32V304h144c17.67 0 32-14.33 32-32v-32c0-17.67-14.33-32-32-32z\"><\/path><\/svg><\/span>\n\t\t\t\t\t\t\t\t<span class=\"elementor-accordion-icon-opened\"><svg class=\"e-font-icon-svg e-fas-minus\" viewBox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 208H32c-17.67 0-32 14.33-32 32v32c0 17.67 14.33 32 32 32h384c17.67 0 32-14.33 32-32v-32c0-17.67-14.33-32-32-32z\"><\/path><\/svg><\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"elementor-accordion-title\" tabindex=\"0\">Can an LCR meter measure resistance more accurately than a multimeter?<\/a>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t<div id=\"elementor-tab-content-1635\" class=\"elementor-tab-content elementor-clearfix\" data-tab=\"5\" role=\"region\" aria-labelledby=\"elementor-tab-title-1635\"><p><span style=\"font-weight: 400;\">Yes. An LCR meter measures resistance under AC impedance, and therefore is able to take into consideration parasitic inductance and capacitance which cannot be sensed in a DC multimeter, leading to further refined measurements of actual components.<\/span><\/p><\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\tTags: <a href=\"\/tag\/digital-lcr-meter-working-principle\/\">digital lcr meter working principle<\/a>, <a href=\"\/tag\/lcr-meter-working\/\">lcr meter working<\/a>, <a href=\"\/tag\/lcr-meter-working-principle\/\">lcr meter working principle<\/a><br>","protected":false},"excerpt":{"rendered":"<p>TL;DR &#8211; This blog is written for electronics students, engineers, lab technicians, manufacturers, educators, and repair professionals who need accurate measurement of inductance, capacitance, and resistance in real-world applications. An LCR meter measures L, C, and R by applying a known AC test signal and analyzing impedance, voltage, current, and phase angle instead of relying [&hellip;]<\/p>\n","protected":false},"author":5,"featured_media":16972,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"categories":[447],"tags":[452,451,450],"class_list":["post-16960","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-meter","tag-digital-lcr-meter-working-principle","tag-lcr-meter-working","tag-lcr-meter-working-principle"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v22.3 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>LCR Meter Working Principle | How L, C &amp; R Are Measured<\/title>\n<meta name=\"description\" content=\"Learn the LCR meter working principle and understand how inductance, capacitance, and resistance are measured using AC impedance and phase analysis.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/nvis.scientech.co.in\/lcr-meter-working-principle\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"LCR Meter Working Principle | How L, C &amp; 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