Digital Frequency Meter
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.…
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.…
Working Principle of Digital Multimeter: Analog meters require no power supply, they give a better visual indication of changes and suffer less from electric noise and isolation problems. These meters…
What is a Digital Instrument?: Digital instrument are rapidly replacing their analog counterparts. The parameters of interest in a laboratory environment are (i) voltage (ii) current (iii) power (iv) frequency,…
Microprocessor Based Ramp Type DVM: A basic block diagram of a Microprocessor Based Ramp Type DVM and its operating waveform is shown in Fig. 5.17 (a) and (b) respectively. Depending…
Continuous Balance DVM: Continuous Balance DVM - The basic block diagram of a servo balancing potentiometer type DVM is shown in Fig. 5.15. The input voltage is applied to one…
Successive Approximation Type DVM: The Successive Approximation Type DVM principle can be easily understood using a simple example; the determination of the weight of an object. By using a balance…
Principles of ADC (Analog to Digital Conversion): Principles of ADC - The input signal is compared with an internally generated voltage which is increased in steps starting from zero. The…
Integrating Type DVM (Voltage to Frequency Conversion): The principle of operation of an Integrating Type DVM is illustrated in Fig. 5.5. A constant input voltage is integrated and the slope…
Dual Slope Integrating Type DVM (Voltage to Time Conversion): Dual Slope Integrating Type DVM - In ramp techniques, superimposed noise can cause large errors. In the dual ramp technique, noise…
Ramp Technique of Digital Voltmeter: Ramp Technique - The operating principle is to measure the time that a linear ramp takes to change the input level to the ground level,…