BEX-8510 comprehensive ideal vacuum diode experiment apparatus
Key components are an ideal vacuum diode and an energized solenoid surrounding it. The experiment measures tungsten's electron work function using a tungsten-filament ideal cathode and coaxial cylindrical anode. The emitting surface is limited to a uniformly heated length while approximating infinitely long electrodes without edge effects. Work-function measurement combines Richardson straight-line measurement, extension measurement (source wording), compensation measurement, and magnetron methods, providing useful data-processing training and a meaningful experiment.
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Overview
Specifications
| Parameter | Value |
|---|---|
| Metal electron-work-function experimental apparatus - Anode-voltage module | Adjustable 0-160VDC |
| Metal electron-work-function experimental apparatus - Anode-current module | Measurement range 0-20mA |
| Metal electron-work-function experimental apparatus - Filament-current module | 0-800mAAdjustable |
| Adjustable DC (constant-voltage/constant-current) power supply I - Voltage | 0-12.0VAdjustable |
| Adjustable DC (constant-voltage/constant-current) power supply I - Current | 0-1.0AAdjustable |
| Ideal vacuum-diode box - Filament material | Pure tungsten |
| Ideal vacuum-diode box - Anode material | Nickel |
| Ideal vacuum-diode box - Filament current | 0.50-0.80A |
| Solenoid coil | 560turns |
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