BEX-8502A Franck-Hertz experiment apparatus
A vacuum tube containing argon produces many electrons by filament heating. Accelerated electrons collide with argon atoms and exchange energy. Electrons retaining enough energy cross a reverse retarding voltage and reach the plate, producing plate current measured by a microcurrent amplifier to obtain a current-voltage curve. Optional PASCO sensors or interfaces acquire live data, while software quickly processes and plots the waveform with 6 clearly visible peaks, upgrading the experiment to computer-based acquisition and analysis.
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Overview
Specifications
| Parameter | Value |
|---|---|
| Franck-Hertz experimental apparatus - 4 voltage-output channels | 0~6.3VDC，0~5.0VDC，0~12VDC，0~85VDC |
| Franck-Hertz experimental apparatus - Microcurrent measurement range | 10⁻⁸~10⁻¹¹ A |
| Franck-Hertz tube box - Gas filling | Ar |
| Franck-Hertz tube box - Filament voltage | ≤6.3VDC |
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