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An oscillator and a capacitance coupled amplifier are present in a carrier amplifier.(a) True(b) FalseI had been asked this question in an international level competition.Question is from Single Channel Telemetry System in chapter Biomedical Telemetry of Biomedical Instrumentation |
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Answer» RIGHT choice is (a) True The best I can explain: It is True. The transducers, which require ac excitation, are those whose IMPEDANCE is not PURELY RESISTIVE. The carrier amplifier consists of an oscillator and a capacitance coupled amplifier. The oscillator is USED to energize the transducer with an alternating carrier voltage. |
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