electrometer amplifier
electrometer amplifier
[i‚lek′träm·əd·ər ′am·plə‚fī·ər] (electronics)
A low-noise amplifier having sufficiently low current drift and other characteristics required for measuring currents smaller than 10-12 ampere.
References in periodicals archive
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Because of the very high resistivities of the undoped films, it was necessary to build a very high impedance differential electrometer amplifier (DEA) to measure the Hall voltage.
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