How do resistance meters make measurements?

QWhat measurement principles do resistance meters use?

A

 

When a current I is applied to the object under measurement, a resistance R and the voltage V are generated with the relationship R = V / I. The resistance R can be calculated using this relationship. Resistance meters provide three measurement methods: constant current (CC), which applies a constant current to the sample; constant voltage (CV), which applies a constant voltage to both ends of the sample; and a third that applies the voltage across the combination of the instrument’s output impedance and the series-connected sample. HIOKI resistance meters use the CC method. Super-insulation resistance meters use the CV method, and some LCR meters allow the user to select any of the three methods.

Learn more about Hioki's resistance meters:

 

RESISTANCE HiTESTER RM3542
  • Wide Range 100 mΩ to 100 MΩ
  • DC Resistance Meter with Low Power Resistance Mode for Testing Chip Inductors and EMC Suppression Components on Production Lines
 
RESISTANCE HiTESTER RM3543
  • 10 mΩ to 1000 Ω DC 
  • 0.01μΩ Resolution and Strong Noise Immunity for Integration into Automated Production Lines
 
RESISTANCE METER RM3544
  • 18 ms measurement speed 
  • 1 μΩ resolution
 
RESISTANCE METER RM3548
  • Portable resistance meter measures from µΩ to MΩ 
  • 0.1 μΩ resolution