Langmuir probe


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Langmuir probe

[′laŋ‚myu̇r ‚prōb]
(plasma physics)
A device for measuring the temperature and electron density of a plasma, consisting of an electrode in contact with the plasma whose potential is varied while the resulting collection currents are measured.
References in periodicals archive ?
Plasma parameters are diagnosed by a single Langmuir probe. Bias voltage and current characteristic curves are analyzed for the determination of electron temperature, density, and plasma potential.
The first satellite, dubbed NORsat-1 carries a state-of-the-art Automatic Identification System (AIS) receiver to acquire messages from maritime vessels, a set of Langmuir probes to study space plasma characteristics, and a Compact Lightweight Absolute Radiometer (CLARA) to measure total solar irradiation and variations over time.