Get an Idea About LCR Meter
LCR meter is an electronic device which is used to measure resistance, inductance and capacitance of a component. In fact, it provides a solution for the known problem of measurements such as resistance, inductivity and capacitance. This device is very convenient to use and has an efficient comparator function. The effective resistance of an electric circuit or component to alternating current is being measured internally by this device. These instruments are easily programmable and affordable and they are micro-processor based passive component testers for fast precise impedance measurements.
Significance of using LCR meter:
€ It can be used to measure alternating current resistances, phase angle as well as components' performance. It measures inductive, capacitive and ohmic resistances very quickly with high accuracy.
€ The special resolution and the high testing voltage of these instruments will allow exact assessments of the capacitance of capacitors and the inductivity of coils.
€ The advanced designs of this instrument can measure true inductance or capacitance; also it does measure the equivalent series resistance of capacitors and the Q factor of inductive components.
€ These displays of LCR measuring devices are very unique such that it is very large and make the whole thing viewable from all angles.
€ The achieved accuracy for the frequencies up to 100 kHz can be less than 0.1 degree for impedance phase and 0.2% for impedance magnitude, which is within the specified basic accuracy variety of the LCR meter utilized for the measurements.
€ The LCR meter with an instrumentation amplifier as a front end can enhance the measurement accuracy of the four electrode bio-impedance measurement at low frequencies.
€ It is also known as an impedance meter and some of the key features of this instrument are accuracy, test frequency, measured parameters, test voltage and test current.
€ An LCR meter or impedance meter has the capacity to provide multi-parameters over wide frequency and voltage ranges.
There are two types of LCR meters; hand held and benchtop. The selectable test frequencies of hand held meters are 100Hz, 120Hz, 1 kHz, 10 kHz, and 100 kHz for top end meters. The two unique function features such as display resolution and measurement range have the capability to change with test frequency, whereas in benchtop meters, the selectable frequencies are of more than 100 kHz. It too has the capacity to superimpose a DC voltage or current on the AC measuring signal. It also allows the special fixtures to measure SMD components, transformers or air-core coils. Care must be ensured as some LCR meters can be damaged by the generated EMF produced due to turning the rotor of a permanent-magnet motor.
Significance of using LCR meter:
€ It can be used to measure alternating current resistances, phase angle as well as components' performance. It measures inductive, capacitive and ohmic resistances very quickly with high accuracy.
€ The special resolution and the high testing voltage of these instruments will allow exact assessments of the capacitance of capacitors and the inductivity of coils.
€ The advanced designs of this instrument can measure true inductance or capacitance; also it does measure the equivalent series resistance of capacitors and the Q factor of inductive components.
€ These displays of LCR measuring devices are very unique such that it is very large and make the whole thing viewable from all angles.
€ The achieved accuracy for the frequencies up to 100 kHz can be less than 0.1 degree for impedance phase and 0.2% for impedance magnitude, which is within the specified basic accuracy variety of the LCR meter utilized for the measurements.
€ The LCR meter with an instrumentation amplifier as a front end can enhance the measurement accuracy of the four electrode bio-impedance measurement at low frequencies.
€ It is also known as an impedance meter and some of the key features of this instrument are accuracy, test frequency, measured parameters, test voltage and test current.
€ An LCR meter or impedance meter has the capacity to provide multi-parameters over wide frequency and voltage ranges.
There are two types of LCR meters; hand held and benchtop. The selectable test frequencies of hand held meters are 100Hz, 120Hz, 1 kHz, 10 kHz, and 100 kHz for top end meters. The two unique function features such as display resolution and measurement range have the capability to change with test frequency, whereas in benchtop meters, the selectable frequencies are of more than 100 kHz. It too has the capacity to superimpose a DC voltage or current on the AC measuring signal. It also allows the special fixtures to measure SMD components, transformers or air-core coils. Care must be ensured as some LCR meters can be damaged by the generated EMF produced due to turning the rotor of a permanent-magnet motor.