Vibrating fiber electrometer
Patent
·
OSTI ID:7349177
Improved operation of a vibrating fiber electrometer having a flexible conductive fiber positioned between two deflecting is achieved by maintaining the pressure of the atmosphere surrounding the fiber at a value where the ratio of the amplitude of vibration of the fiber at its resonance frequency to the amplitude of vibration at twice the resonance frequency is equal to or greater than 5 and having an alternating voltage of frequency equal to the natural frequency of the fiber applied to the deflecting electrodes. Automatic, continuous operation of the vibrating fiber electrometer is attained by projecting the image of the fiber onto a photosensitive detector which develops a signal corresponding to the phase of vibration of the fiber. A servo system coupled to the fiber and the deflecting electrodes and the detector is responsive to the signal to minimize automatically the vibration of the fiber.
- Assignee:
- U.S. Energy Research and Development Administration
- Patent Number(s):
- US 3924184
- OSTI ID:
- 7349177
- Country of Publication:
- United States
- Language:
- English
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