potentiometer

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po·ten·ti·om·e·ter

(pō-ten'shē-om'ĕ-tĕr),
1. An instrument used for measuring small differences in electrical potential.
2. An electrical resistor of fixed total resistance between two terminals, but with a third terminal attached to a slider that can make contact at any desired point along the resistance.
[L. potentia, power, + G. metron, measure]

potentiometer

(pō-tĕn″shē-ŏm′ĕ-tĕr)
A voltmeter.

calibration potentiometer

A mechanically adjusted resistance used as a calibration control on many instruments. It adjusts a voltage or current within the device.
References in periodicals archive ?
Precision resistance adjustments are performed with a laser on ceramic, compared to trim pots on PCBs.
EPAD op-amps cost no more than conventional devices and may ultimately offer improved reliability and considerable cost savings by eliminating mechanical trim pots and manual trimming.
* Trim pots that allow the user to adjust max speed, torque (current) limit, and acceleration time.