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What is the thickness of the new acoustic sensor?

(a) 0.25 mm

(b) 0.5 mm

(c) 1.0 mm

(d) 1.5 mm

This question was posed to me in exam.

The above asked question is from Measurement of Temperature in section Patient Monitoring System of Biomedical Instrumentation

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Right option is (c) 1.0 mm

Easy explanation: A new acoustic sensor, which enhances the audibility of heart sounds and enables recording of quantitative acoustic spectral data is described by Kassal et al, 1994. This device is a polymer based adherent differential-output sensor, which is only 1.0 mm thick.

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