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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) FalseThe 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

Answer»

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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