LCR Meters

LCR Meters are a type of electronic test equipment used to measure the inductance (L), capacitance (C) and resistance (R) of an electronic component.

When there is a change in the current flowing through a conductor, a corresponding change is induced in the voltage in it and in conductors surrounding it. This property is known as inductance. The ability of a body or a conductor to store electrical charge is known as capacitance. The opposition that a conductor offers to the passage of electric current through it is called resistance.

Most LCR meters use AC signals to measure the impedance of components. When using an LCR meter make sure you are using the correct settings as the wrong settings can result in poor measurement accuracy. Both analogue and digital LCR meters are available. The analogue are less expensive and the digital variety are seen to be more accurate.

Uses of an LCR Meter

A digital LCR meter is used to measure the impedance flowing through a Device Under Test (DUT). It measures the voltage (V) across it, the current (I) flowing through it, and the phase angle between current and voltage. Subsequently, you can determine all the impedance parameters from these three factors.

Thus, an LCR meter measures the following parameters related to a circuit:

● inductance
● capacitance
● resistance
● dissipation factor
● quality factor
● current
● voltage
● phase angle between the current and voltage
● conductance
● susceptance

Types of LCR Meters

Handheld LCR meters: Small, lightweight and portable. They have multiple test frequency and the data it captures can be transferred to a PC via a USB port. Typically used in field operations.

Benchtop LCR meters: Big and bulky. They can be operated on programmable frequencies and can be controlled via a computer.

Techniques used with LCR Meters

Bridge Method: This method is used for measuring frequencies below 100 kHz.

LCR Measurement by Current-Voltage Technique: Using this method the LCR measurement of a component is done by measuring the current and voltage. Then the impedance values are found out from these two quantities.
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detalji proizvoda Proizvođač Maximum Capacitance Measurement Maximum Resistance Measurement Maximum Inductance Measurement Battery Life Battery Type Bench/Handheld Display Type Power Source Dimensions Weight Height Length Maximum Operating Temperature Minimum Operating Temperature Model Number p Width Plug Type
RS PRO Capacitance Meter 20000μF Handheld Type RS Pro 20000µF - - 100 (Carbon Zinc) h, 200 (Alkaline) h 9V Handheld LCD Battery 87 x 39 x 185mm 290g 185mm 87mm +50°C 0°C - 39mm -
Peak Electronic Design, Model LCR40 Meter 10000μF, 2 MΩ, 10h Handheld Type Peak Electronic Design 10000µF 2 MΩ 10H - MN21 Handheld LCD Battery 103 x 72 x 20mm 158g 20mm 103mm +40°C +10°C LCR40 72mm -
RS PRO LCR Meter 20mF, 200 MΩ, 20kH Handheld Type RS Pro 20mF 200 MΩ 20kH 50 h Alkaline Handheld Auto Backlit Bar Graph Display Battery 95 x 51.2 x 200mm 605g 200mm 95mm +50°C 0°C LCR-1703 51.2mm -
Peak Electronic Design, Model ESR70 Meter 22000μF, 40 Ω Handheld Type Peak Electronic Design 22000µF 40 Ω - - A23 Handheld LCD Battery 103 x 70 x 20mm - 20mm 103mm +40°C +10°C ESR70 70mm -
RS PRO LCR Meter 20mF, 200 MΩ, 20kH Handheld Type RS Pro 20mF 200 MΩ 20kH 50 h Alkaline Handheld Auto Backlit Bar Graph Display Battery 95 x 51.2 x 200mm 605g 200mm 95mm +50°C 0°C LCR-1701 51.2mm -
BK Precision, Model BK879B LCR Meter 20mF, 10 MΩ, 1000h Handheld Type BK Precision 20mF 10 MΩ 1000H 16 h Alkaline Handheld LCD Battery 190 x 90 x 41mm 330g 41mm 190mm +40°C 0°C BK879B 90mm -
Red Pitaya LCR Meter 100mF, 10 MΩ, 1000h Red Pitaya 100mF 10 MΩ 1000H - - - LCD - - - - - - - - - -
Amprobe, Model LCR55A Meter 2000μF, 20 MΩ, 200h Handheld Type Amprobe 2000µF 20 MΩ 200H 200 h 9V Handheld LCD Battery 79 x 183 x 38mm 311g 38mm 79mm +50°C 0°C LCR55A 183mm -
BK Precision, Model BK878B LCR Meter 20mF, 10 MΩ, 1000h Handheld Type BK Precision 20mF 10 MΩ 1000H 16 h Alkaline Handheld LCD Battery 190 x 90 x 41mm 330g 41mm 190mm +40°C 0°C BK878B 90mm -
BK Precision, Model BK890C LCR Meter 50mF Handheld Type BK Precision 50mF - - 70 h 9V Alkaline Handheld LCD Battery 41 x 90 x 190mm 350g 190mm 41mm +40°C 0°C BK890C 90mm -
BK Precision, Model BK830C LCR Meter 199.99mF Handheld Type BK Precision 199.99 - - 70 h 9V Alkaline Handheld LCD Battery 41 x 90 x 190mm 350g 190mm 41mm +40°C 0°C BK830C 90mm -
BK Precision, Model BK880 LCR Meter 20mF, 10 MΩ, 1kH Handheld Type BK Precision 20mF 10 MΩ 1kH 6 h Ni-MH Handheld LCD Battery 41 x 90 x 190mm 348g 190mm 41mm +40°C 0°C BK880 90mm Banana Plug
Sanwa Electric Instruments, Model LCR700 Meter 20mF, 200 MΩ, 2000h Bench Type Sanwa Electric Instruments 20mF 200 MΩ 2000H 35 h 6LR61 Bench Digital Battery 175 x 80 x 40mm 320g 40mm 175mm +50°C 0°C LCR700 80mm Banana Plug
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