Hioki 8835-01 - Measurement Errors Caused by Signal Source Internal Resistance

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15.5 Measurement Errors Caused by Signal Source Internal Resistance
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Es:Signal voltage
Rs: Signal source resistanc
e
Rin: Input resistance
Rin
Measurement errors＝Es １− ――――― ［V］
Rs＋Rin
R
s
Ri
n
E
s
1
5.5 Measurement Errors Caused by Signal Source
Internal Resistance
・If the signal source impedance is higher than the input impedance of the unit,
a measurement error will occur.
・The input impedance of the 8936 ANALOG UNIT is 1 MΩ. If the signal
source impedance is 1 kΩ, an error of about 0.1% will occur.