electrometer

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e·lec·trom·e·ter

(ĕ-lek-tromĕ-tĕr)
A device for measuring the electromotive force (voltage) of a source of electricity.

e·lec·trom·e·ter

(ĕ-lek-tromĕ-tĕr)
A device for measuring the electromotive force (voltage) of a source of electricity.

electrometer (ēlektrom´ətur),

n an electrostatic instrument for measuring the potential difference between two points. In radiology, electrometers are used to measure changes in the potential of charged electrodes resulting from ionization occasioned by radiation.
References in periodicals archive ?
In the silicon electrometer, the movable electrode rests on a paddle attached to a thin, flexible beam that twists and vibrates in response to electric attraction.
The shield is connected to the LO input terminal of the electrometer.
Although it is certainly possible to set up a system with a separate voltage source, an integrated one simplifies the configuration and programming process significantly, so look for an electrometer or picoammeter with a built-in variable voltage source.
For small batch testing in a lab with a benchtop test setup, consider an electrometer that offers the convenience of a plug-in switching card.
FIGURE 4 illustrates such a system, which employs an electrometer with built-in voltage source, as well as a switching mainframe that houses a low current scanner card and a Form C switching card.
How to Enable the Meter Connect Feature on the Model 6517B Electrometer
As accurate as electrometers are, a variety of error sources can degrade charge measurement integrity if not taken into account.
The charge measurement range of most electrometers can be extended through the use of the external feedback mode, which allows use of an external device as the electrometer's feedback element.
Several other elements of measurement "hygiene" are critical to making good charge measurements with electrometers, including making proper connections, minimizing electrostatic interference, and minimizing the impact of environmental factors.
As a general rule, JFET gate leakage current doubles for every 10[degrees]C increase in temperature, but most electrometers are temperature compensated to minimize input current variations over a wide temperature range.
An electrometer makes an ideal coulombmeter because it has very low input offset current and high input resistance.