Difference between DC resistance measurement of a resistance meter and DC resistance measurement of an LCR meter
QWe own both the Resistance Meter RM3545 and the LCR Meter IM3536. Each can measure DC resistance, but are there any differences?
A
The basic measurement principle of applying a DC signal and measuring resistance is the same.
- Resistance Meter RM3545: Resistance measurement with constant current measurement signals.
- LCR Meter IM3536 (Measurement parameter Rdc): Resistance measurement with measurement signal as voltage (fixed at 1 V)
The RM3545, a dedicated for measuring resistance, can apply a larger current than the LCR meter. Therefore, it can measure low resistance (mΩ) more stably.
The LCR meter outputs a fixed voltage for measurement. There are also models that allow the user to set arbitrary voltage and current values to be applied to the sample. If the DC resistance measurement (Rdc) does not work, try changing the Rdc settings such as the DC delay time and measuring speed.
Refer to the following FAQ also.
"Differences of Resistance Measurement Methods"
https://www.hioki.com/global/support/faq/detail/id_n955657
