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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Problems solved by technology

Since the effective information used in this method is reflected waves, it is easily

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  • Real-time regression detection system and method for solid rocket propellant burning surface
  • Real-time regression detection system and method for solid rocket propellant burning surface
  • Real-time regression detection system and method for solid rocket propellant burning surface

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[0021] The specific embodiments of the present invention will be described below with reference to the drawings.

[0022] figure 1 It is a schematic diagram of the structure of the solid rocket propellant burning surface retreat real-time detection system in this embodiment.

[0023] Such as figure 1 As shown, the solid rocket propellant combustion surface retreat real-time detection system 100 adopts a working mode of non-contact measurement with an ultrasonic transducer. It includes a signal generation unit 11, a pre-amplification unit 12, a non-destructive testing unit 13, a post-amplification unit 14, a signal conditioning unit 15, a data acquisition unit 16, and a processing control unit 17.

[0024] The signal generating unit 11 is used to generate an ultrasonic signal as the original pulse signal; the preamplifier unit 12 is used to amplify the ultrasonic signal.

[0025] The non-destructive testing unit 13 is arranged near the solid rocket motor 20 and includes five groups o...

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Abstract

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.

Description

technical field [0001] The invention belongs to the field of propellant testing of solid rocket motors, in particular to a real-time detection system for the retreat of the burning surface of the solid rocket propellant and a method for determining the displacement of the burning surface of the propellant in real time and dynamically obtaining the burning speed of the propellant. Background technique [0002] Solid rocket motor is a rocket power device using solid propellant. It has the advantages of simple structure, good maneuverability, high reliability and easy maintenance. It is more and more widely used in rocket weapon systems and plays a huge role in the aerospace field. role. [0003] The reliability of solid rocket motor combustion will directly affect the safety of the entire rocket system. Therefore, it is necessary to use reliable nondestructive testing methods to measure the combustion state of the fuel and the retreat of the combustion surface in real time. B...

Claims

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Application Information

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IPC IPC(8): G01N29/024G01N29/32
CPCG01N29/024G01N29/32G01N2291/011
Inventor 杨斌苏明旭顾建飞杨敬贤潘科玮陈晓龙徐秋丽王伟
Owner UNIV OF SHANGHAI FOR SCI & TECH
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