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The galvanometer, which needs a frequency response of only 3 MHz, is positioned by a servo motor through a silent step-down belt drive.

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The galvanometer, which needs a frequency response of only 3 MHz, is positioned by a servo motor through a silent step-down belt drive.

(a) True

(b) False

The question was posed to me in an internship interview.

I need to ask this question from Pulmonary Function Analysers topic in section Pulmonary Function Analysers of Biomedical Instrumentation

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The correct choice is (b) False

To explain: The galvanometer, which needs a frequency response of only 3 Hz, is positioned by a servo motor through a silent step-down belt drive. Recording sensitivity is 20 bpm/cm giving a basic resolution of 1 bpm for seeing small changes in the heart rate.

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