He introduced the concept of density with an electrostatic probe, now called a Langmuir probe and commonly used in plasma physics.
12.
The ball-pen probe collector is systematically retracted until its potential saturates at some value, which is above Langmuir probe potential.
13.
Probes currently used at the facility include magnetic field probes, Langmuir probes, Mach probes ( to measure flow ) and many others.
14.
Although this is the expression usually given in theoretical discussions of Langmuir probes, the derivation is not rigorous and the experimental basis is weak.
15.
:It wouldn't necessarily be static but I always wondered if Langmuir probes in a magnetized plasma could be biased electrically to generate a mechanical force.
16.
The satellites carry four Electric Field Probe sensors on telescopic booms, two DC Langmuir probes for detection of ions and a three-axis magnetometer for measuring magnetic fields.
17.
:The Langmuir probe, well, I won't claim to understand it fully, and in any case, I'm looking for something in air.
18.
The physics is essentially that of a Langmuir probe that draws no net current, including formation of a Debye sheath with a thickness of a few times the Debye length.
19.
A Langmuir probe can be purchased off the shelf for on the order of 15, 000 U . S . dollars, or they can be built by an experienced researcher or technician.
20.
The value of coefficient \ alpha is given by the Langmuir probe geometry, plasma gas ( Hydrogen, Deuterium, Helium, Argon, Neon, . . . ) and magnetic field.
