2006-12-21 06:38:07 · 6 answers · asked by mark g 2 in Science & Mathematics ➔ Engineering
What is the question ? Yes, digital volt meters can measure voltage.
2006-12-21 06:42:15 · answer #1 · answered by Gene 7 · 0⤊ 0⤋
The great thing about DVMs is that they have a very, very high input impedance, so they have very little effect on the circuit under test. Other voltmeters involve the voltage generating a magnetic field in a coil, and swinging a pointer around. The pointer has a spring to return it to zero, and the power taken to work the arrangement comes from the circuit under test, thus upsetting the circuit (and altering the voltage being measured), particularly when low voltages in high impedance (resistance, putting it crudely) circuits are being tested.
2006-12-24 12:33:20 · answer #2 · answered by andrew f 4 · 0⤊ 0⤋
DVM is the acronym for Digital Voltage Meter - they measure voltage between two points of a circuit with a pair of probes - usually one black, denoting negative and one red, denoting positive. The DVM will normally have a means of setting the maximum reading (scale) that can be taken, and usually a means of measuring AC voltage - the probes colours would have no meaning in this mode. Now whats the question?
2006-12-21 14:46:40 · answer #3 · answered by Mark R 2 · 0⤊ 1⤋
Presumably DVM means digital voltmeter? Voltage will be measured according to whether it is AC or DC, and an appropriate range will be used on the voltmeter if it is a multi-range instrument.
If the meter has several measurement functions, then it would be more accurately called a DMM (Digital Multi-Meter)
If you provide more details, you may get a more complete answer.
2006-12-21 14:44:59 · answer #4 · answered by Phish 5 · 1⤊ 0⤋
Digital Volt Meter.
2006-12-21 14:45:27 · answer #5 · answered by mnmnk00 2 · 0⤊ 0⤋
. . . avoid rechargeable batteries . . .
2006-12-21 15:27:51 · answer #6 · answered by Astra 6 · 0⤊ 0⤋