electrometer

American  

[ih-lek-trom-i-ter, ee-lek-] / ɪ lɛkˈtrɒm ɪ tər, ˌi lɛk- /

noun

1. a calibrated device used for measuring extremely low voltages.

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electrometer British  

/ ɪˌlɛktrəʊˈmɛtrɪk, ɪlɛkˈtrɒmɪtə, ˌiːlɛk- /

noun

1. an instrument for detecting or determining the magnitude of a potential difference or charge by the electrostatic forces between charged bodies

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Other Word Forms

• electrometric adjective
• electrometrical adjective
• electrometrically adverb
• electrometry noun

Etymology

Origin of electrometer

First recorded in 1945–50; electro- + -meter

Example Sentences

Each is equipped with 21 electrometers, to separate the mobilities and determine the concentrations of positive and negative ions simultaneously.

From Nature

Because the instrument includes two mobility analysers operating in parallel, positive and negative spectra are obtained simultaneously, each with 21 electrometers.

From Nature

Accelerated particles would strike this strip at the end of their spiral journeys, with their final energies to be measured by an electrometer wired to it.

From Literature

It was a fitting experiment: cosmic rays were discovered in 1912 when Austrian physicist Victor Hess carried electrometers to about 5,000 metres in a perilous open basket beneath a balloon.

From Nature

Thomson's absolute electrometer is based upon an ingenious modification of the electrical balance of Harris and Volta.

From Project Gutenberg