Real-time regression detection system and method for solid rocket propellant burning surface
A solid rocket, real-time detection technology, used in measurement devices, material analysis using sonic/ultrasonic/infrasonic waves, instruments, etc., can solve problems such as large measurement errors and uneven combustion surfaces, to reduce detection errors and improve detection. The effect of precision
Pending Publication Date: 2017-09-08
UNIV OF SHANGHAI FOR SCI & TECH
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The present invention provides a solid rocket propellant combustion surface retreat real-time detection system and method, comprising: a signal generating unit for generating an ultrasonic signal as an original pulse signal; a preamplifying unit for amplifying the ultrasonic signal; The non-destructive testing unit is in contact with the casing of the solid rocket motor, and includes multiple sets of ultrasonic transducer groups arranged at certain intervals, each group of ultrasonic transducer groups has a transmitting transducer for emitting amplified ultrasonic signals and a receiving wear The receiving transducer of the transmission signal passing through the shell; the rear amplification unit, which amplifies the transmission signal; the signal conditioning unit, which converts the transmission signal into a digital signal; and the processing control unit, which processes the digital signal to obtain the propellant burning surface The displacement of the propellant and the burning rate of the propellant, and control the operation of the signal generation unit, pre-amplification unit, non-destructive testing unit, post-amplification unit and signal conditioning unit.
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