Question

Who described the new acoustic sensor?

(a) Golden et al

(b) Rijn et al

(c) Levkov et al

(d) Kassal et al

Answer 1

Correct choice is (d) Kassal et al

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.