DESIGN AND IMPLEMENTATION OF AHIGH-PRECISION DIGITAL VOLTMETER

[摘要] In modern electronics laboratory a voltmeter with high precision and digital displaying mechanism is an essential device. This paper describes the mechanism of a voltmeter that can measure voltage up to 30.00 V with a resolution of 10mV. In this voltmeter the achieved accuracy is quite good so that it can be used where precise voltage measurement is required.

[关键词] Voltmeter;precision;staircase;ADC;DAC.