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Thursday, 19 February 2015

Digital Voltmeters (DVMs)

Digital Voltmeters (DVMs) Points : Digital Voltmeters (DVMs), Definition A digital voltmeter (DVM) displays the value of a.c or d.c voltages being measured directly as discrete numerical in the decimal number system. Numerical readout of DVMs is advantageous since it eliminates observational errors committed by operations. The errors ob account of parallax and approximations are entirely eliminated. The use of digital voltmeters increases the speed with which readings can be taken. Also the output of digital voltmeters can be fed to memory devices for storage and future computations.

A digital voltmeters is a versatile and accurate voltmeter which has many Laboratory applications. On account of developments in the integrated circuit (ICO technology, it has been possible to reduce the size, power requirements, and cost of digital voltmeters. In fact for the same accuracy, a digital voltmeter now is less costly then its analog counterpart. Due to small size of DVMs the portability of the instruments has increased.

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