Shunt Calibration for Dummies; a Reference Guide - Interface Force

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8. How Does Tolerance of Rb and of Rs affect Vs ? To a close approximation <strong>for</strong> all of the circuits above with reasonable values, • Vs is proportional to the value of Rb and • Vs is inversely proportional to the value of Rs. 18
9. What Errors are Contributed by Extension Cables ? It often happens that initial shunt calibration data is recorded on a particular bridge and then in subsequent tests an extension cable has been added between the bridge and the instrument with Rs located at the instrument. It is useful to know the resulting error. In the following discussion Rc represents the resistance of one conductor of a cable made of multiple similar conductors. 19
Page 1 and 2: Shunt Calibration for Dummies; a Re
Page 3 and 4: 1. What is Shunt Cal ? • Shunt Ca
Page 5 and 6: 3. Shunt Cal has some advantages
Page 7 and 8: 4. About Formulae (continued) • I
Page 9 and 10: Simplified Basic Bridge Circuit, R1
Page 11 and 12: Basic Bridge Formula Inverted to so
Page 13 and 14: Vs 6. Bridge With Series Trim or Co
Page 15 and 16: Series resistor circuit examples Rb
Page 17: Parallel resistor circuit examples
Page 21 and 22: Conductor Gauge 4-Conductor Error E
Page 23 and 24: 10. What Error is Contributed by a
Page 25 and 26: 12. Why are 8-Conductor Cables Some
Page 27 and 28: Rb (ohm) Error due to Physical Load
Page 29 and 30: 15. What is the Effect on Shunt Cal
Page 31 and 32: 17. Can a Value for Vs be Calculate
Page 33 and 34: . Internal to an Instrument. • Lo
Page 35 and 36: 500 DMA DCA These lower cost signal
Page 37 and 38: d. External, laboratory instrument.
Page 39: Shunt Calibration Repeatability Dat

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