Measures the amount of volts in an electrical systems or device.
Related Terms |
BIFILAR ELECTROMETER
An electrostatic voltmeter in which two conducting quartz fibers, stretched by a small weight or spring, are separated by their attraction in opposite directions toward two plate electrodes carrying the voltage to be measured.
|
ELECTRONIC VOLTMETER
Voltmeter which uses the rectifying and amplifying properties of electron devices and their associated circuits to secure desired characteristics, such as high-input impedance, wide-frequency range, crest indications, and so on.
|
ELECTROSTATIC VOLTMETER
A voltmeter in which the voltage to be measured is applied between fixed and movable metal vanes; the resulting electrostatic force deflects the movable vane against the tension of a spring.
|
GRID-RECTIFICATION METER
A type of vacuum-tube voltmeter in which the grid and cathode of a tube act as a diode rectifier, and the rectified grid voltage, amplified by the tube, operates a meter in the plate circuit.
|
HIGH-FREQUENCY VOLTMETER
A voltmeter designed to measure currents alternating at consisting of a metal tube with thick glass windows.
|
HIGH-RESISTANCE VOLTMETER
A voltmeter having a resistance considerably higher than 1000 ohms per volt, so that it draws little current from the circuit in which a measurement is made.
|
PH METER
An electronic voltmeter using a pH-responsive electrode that gives a direct conversion of voltage differences to differences of pH at the temperature of the measurement.
|
