Digital Frequency Meter: Principle of Operation of Digital Frequency Meter - The signal waveform is converted to trigger pulses and applied continuously to an AND gate, as shown in Fig.…
Digitally Controlled Frequency Synthesizers Interview Questions and Answers: 1. What is PLL? Ans. PLL is basically an electronic circuit that consists of a phase detector, a low-pass filter, a dc amplifier…
Electronic Instruments (Analog as well as Digital) Interview Questions and Answers: 1. Why ordinary voltmeter cannot be used in electronic circuits? Ans. A moving coil voltmeter draws a large current, hence…
Frequency Generating Transducer: Frequency Generating Transducer - Unlike variable parameter analog transducers, frequency and pulse generating transducers measure physical variables in terms of a pulse repetition rate. Since frequency is…
Fully Automatic Digital Instrument: Fully Automatic Digital Instrument - A multimeter with automatic polarity indication, automatic zero correction and automatic ranging (of course coupled with automatic decimal point indication) only…
Digital Tachometer Working Principle: Digital Tachometer Working Principle technique employed in measuring the speed of a rotating shaft is similar to the technique used in a conventional frequency counter, except…
Automatic Frequency Control Block Diagram: Automatic frequency control: As previously we see, the heart of an AFC circuit is a frequency-sensitive device, such as the phase discriminator, which produces a…
Digital Voltmeters Articles: Digital Voltmeters Features and Characteristics: Digital Voltmeters Features and Characteristics which includes measuring instruments that convert analog voltage signals into a digital or numeric readout. This digital…