A PULSED ULTRASONIC THERMOANEMOMETER
FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OH
Pagination or Media Count:
Instruments for measuring the temperature of an air stream cannot exclude the influence of the stream on the results of the measurement because of possible dynamic heating of the sensitive element, and also the influence of the temperature and humidity of the medium. The proposed instrument--a pulsed ultrasonic thermoanemometer based on the same principle of measurement does not have the indicated defects because a device is used in it which adds the frequencies of pulse repetition in two channels. The pulsed ultrasonic thermoanemometer comprises an oscillator, two controlled cascades to which are connected ultrasonic pulse generators, two am AD-295 459 Div. 25 U TISTMODN OTS price 2.60 Foreign Tech. Div., Air Force Systems Command, Wright-Patterson Air Force Base, Ohio. A DETERMNATION OF THE TEMPERATURE FIELD AND THE HEAT LOSSES IN THE INSULATION BARRIER OF COMPRESSED-GAS TANKS, lifters with receivers as their input, and meters for the difference and sum of the frequencies of the oscillations entering both channels.
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- Flight Control and Instrumentation