A Langmuir probe is a device named after Nobel Prize winning physicist Irving Langmuir, used to determine the electron temperature, electron density, and electric potential of a plasma. It works by inserting one or more electrodes into a plasma, with a constant or time-varying electric potential between the various electrodes or between them and the surrounding vessel. The measured currents and potentials in this system allow the determination of the physical properties of the plasma.
Read more about Langmuir Probe: I-V Characteristic of The Debye Sheath, Effects of The Bulk Plasma, Electrode Configurations, Practical Considerations
Famous quotes containing the word probe:
“Yknow scientists are funny. We probe and measure and dissect. Invent lights without heat, weigh a caterpillars eyebrow. But when it comes to really important things were as stupid as the caveman.... Like love. Makes the world go round, but what do we know about it? Is it a fact? Is it chemistry? Electricity?”
—Martin Berkeley, and Jack Arnold. Helen Dobson (Lori Nelson)