RESEARCH AND DEVELOPMENT PROGRAM ON OPTICALLY PUMPED NUCLEAR GYROSCOPE.
Quarterly rept. no. 2, 1 Oct-30 Dec 65,
GPL DIV GENERAL PRECISION INC PLEASANTVILLE N Y
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The newly developed transistorized lamp exciter-oscillators have been tested in the gyro and shown to give gyro performance that is qualitatively the same as that previously obtained with the micro-wave-powered discharge lamps. Alternate techniques to air cooling have been considered for cooling the mercury discharge to prevent self reversal of the optical line 2537. Immersion cooling was tried. Although NMR signals were observed with the bulb in methanol, the increase in power required to drive the lamp and the deterioration of the liquid make this approach and material questionable for practical instrumentation. Search for a more suitable liquid will continue and other alternates will be sought. The requirements of a high-gain photosensitive device to be used in place of the combination of a low-gain photosensitive device plus a phase-stable amplifier have been determined. The possibility of getting a device with the required characteristics is being examined. Author
- Electricity and Magnetism