184
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13.5 Measurement Errors Caused by Signal Source Internal Resistance
―――――――――――――――――――――――――――――――――――
Rin
Rs
Es
Es: Signal voltage
Rs: Signal source
resistance
Rin: Input resistance
Measurement error
=
Es
〔
Rs
+
Rin
〕
Rin
1 -
13.5 Measurement Errors Caused by
Signal Source Internal Resistance
This problem only arises if the internal resistance of the
signal source is not sufficiently low compared to the
internal resistance of the analog input unit. If it is high,
it can lead to measurement errors.
Example:
The internal resistance of the analog input unit is
approximately 1 M
Ω
, and therefore if the signal source
resistance is 1 k
Ω
the error is increased by
approximately 0.1%.
Summary of Contents for 8804
Page 1: ...MEMORY HiCORDER INSTRUCTION MANUAL 8804 ...
Page 2: ......
Page 28: ...6 1 2 System Operation ...
Page 40: ...18 2 1 Main Units Specifications ...
Page 102: ...80 6 8 Memory Recorder Function Possible Recording Time ...
Page 128: ...106 8 3 Basic Operational Procedures ...
Page 200: ...178 12 4 Settings on the System Screen Page 2 ...
Page 230: ...APPENDIX 8 Appendices Single Dual 2 Recorder function ...
Page 232: ...APPENDIX 10 Appendices ...
Page 237: ......
Page 238: ......