description
Electronic Instruments: Essential of electronic Instrument, Electronic voltmeters, TVM (using cascaded transistors, using as FET as input stage, Balanced bridge), DC FETVM using difference amplifier. AC Electronic Voltmeter: Differential voltmeter - Rectifier type AC voltmeter, Average responding voltmeter, Peak responding voltmeter, True rms reading voltmeter, Solid state voltmeter. Vector voltmeter. Current measurement using electronic instruments. Electronic digital instruments: terms used in digital system, characteristics of digital meters. Digital Voltmeters: Ramp type DVM, Dual slope integrating type DVM, Integrating type DVM, Succesive approximation DVM. Digital multimeter (DMM). Bridge Circuit: Wheatstone bridge, Kelvin bridge, Kelvin double bridge, Maxwell bridge, Hay bridge, Schering bridge, Anderson bridge, Q-meter. Book Referred: R K Rajput, "Electronic Measurement & Instrumentation", S. Chand Publication.