Change is signal over long period of time is called _______(a) noise(b) offset(c) hysteresis(d) driftI had been asked this question during an interview.This is a very interesting question from Classification of Transducers topic in division Physiological Transducers of Biomedical Instrumentation

Change is signal over long period of time is called _______(a) noise(b

1.	Change is signal over long period of time is called _______(a) noise(b) offset(c) hysteresis(d) driftI had been asked this question during an interview.This is a very interesting question from Classification of Transducers topic in division Physiological Transducers of Biomedical Instrumentation
Answer» The CORRECT choice is (d) drift Explanation: Drift INDICATED a change of BASE line or of sensitivity with time, temperature etc. Drift is BASICALLY the change in a signal over long period of time. Noise is the unwanted signal at the output due either to internal sources or to interference. Offset is the output that will exist when it should be ZERO.

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