Flame position ultrasonic interferometer

Details Flame position ultrasonic interferometer Flame position ultrasonic interferometer

1990-02-06

1993-12-28

Raevis, Robert

Measuring and testing

Engine detonation

Combustion signal compared to reference signal varied by a...

G01N 3322

Patent

active

052729087

ABSTRACT:
A sensitive instrument system for determining the position of the burn fr in a rocket motor is disclosed. Separate adjacent transmitter and receiver elements are attached to the rocket motor casing to form an ultrasonic interference system. An ultrasound beam is transmitted to the motor's interior and the reflected beam from the propellant gas burn front is captured by the receiver. The received signal is processed to determine the distance to the propellant-gas interface.

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patent: 4522064 (1985-06-01), McMillan
patent: 4545249 (1985-10-01), Matay
patent: 4624142 (1986-11-01), Heyman

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