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Unwanted signal at the output due either to internal sources or to interference is called ________(a) offset(b) noise(c) drift(d) thresholdThis question was posed to me in quiz.I'm obligated to ask this question of Classification of Transducers in section Physiological Transducers of Biomedical Instrumentation

Answer»

The correct choice is (b) noise

Easy explanation: 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. The threshold of the transducer is the smallest change in measurant that will result in a measurable change in the transducer output.



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