A certain liquid-level sensor has a Thévenin (or Norton) resistance that varies randomly from 10 kΩ to 1 MΩ. The short-circuit current of the sensor is proportional to the measurand. What type of signal-conditioning unit is required? Suppose we allow for up to 1 percent change in overall sensitivity due to changes in the sensor resistance. Determine the specification for the input resistance of the signal conditioner.
A certain liquid-level sensor has a Thévenin (or Norton) resistance that varies randomly from 10 kΩ to 1 MΩ. The short-circuit current of the sensor is proportional to the measurand. What type of signal-conditioning unit is required? Suppose we allow for up to 1 percent change in overall sensitivity due to changes in the sensor resistance. Determine the specification for the input resistance of the signal conditioner.
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
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A certain liquid-level sensor has a Thévenin (or Norton) resistance that varies randomly from 10 kΩ to 1 MΩ. The short-circuit current of the sensor is proportional to the measurand. What type of signal-conditioning unit is required? Suppose we allow for up to 1 percent change in overall sensitivity due to changes in the sensor resistance. Determine the specification for the input resistance of the signal conditioner.
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