Signal Generator in Electronic Instrumentation

Signal Generator in Electronic Instrumentation:

AF Sine and Square Wave Generator : The block diagram of an AF Sine and Square Wave Generator audio oscillator is illustrated in Fig. 8.4.   The signal generator is called an oscillator. A …


Beat Frequency Oscillator (BFO): In this Beat Frequency Oscillator, the outputs of two RF oscillators are applied to a square law detector and the resulting difference frequency is amplified. The main advantage …


Block Diagram of Sweep Generator : Block Diagram of Sweep Generator – It provides a sinusoidal output voltage whose frequency varies smoothly and continuously over an entire frequency band, usually at an …


Color Bar Generator : Color Bar Generator – The composite video signal at the output of a video detector consists of luminance Y signals, the chrominance signal, the color burst, sync pulses …


Function Generator Block Diagram : A Function Generator Block Diagram produces different waveforms of adjustable frequency. The common output waveforms are the sine, square, triangular and sawtooth waves. The frequency may be …


Marker Generator : Marker Generator – The sweep generator provides a visual display of the characteristics of the circuit or amplifier, but this is inadequate because it does not give any precise …


Modern Laboratory Signal Generator : Modern Laboratory Signal Generator – To improve the frequency stability, a single master oscillator is optimally designed for the highest frequency range and frequency dividers are switched …


Random Noise Generator Block Diagram : A simplified Random Noise Generator Block Diagram used in the audio frequency range is shown in Fig. 8.8.   The instrument offers the possibility of using a single …


Signal Generators : A signal generators is a vital component in a test setup, and in electronic troubleshooting and development,whether on a service bench or in a research laboratory. Signal generators have …


Square and Pulse Generator (Laboratory Type): Square and Pulse Generator Block Diagram are used as measuring devices in combination with a CRO. They provide both quantitative and qualitative information of …


Standard Signal Generator : A standard signal generator produces known and controllable voltages. It is used as power source for the measurement of gain, signal to noise ratio (S/N), bandwidth, standing wave …


Sweep Frequency Generator : Sweep Frequency Generator – An RF generator, when used for alignment and testing of the RF and IF stages of a TV receiver, permits recording of circuit performance …


Vectroscope : Vectroscope – This test instrument combines a keyed colour bar generator with an oscilloscope and is used for alignment and testing the colour section of a TV receiver. The amplitude …


Video Test Pattern Generator : Video Test Pattern Generator – A pattern generator provides video signals directly, and with RF modulation, on standard TV channels for alignment, testing and servicing of TV …