Safe ignition mechanism unit tester
An ignition mechanism and tester technology, applied to rocket engine devices, mechanical equipment, machines/engines, etc., to achieve high reliability, improve test efficiency, and easy to carry
Active Publication Date: 2019-06-07
XIAN AEROSPACE PROPULSION TESTING TECH RES INST
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Problems solved by technology
In the production process of the safety ignition mechanism, before the final assembly of each component, general-purpose instruments and meters can be used to test the function and performance of the components. However, after the final After the artifact is installed, or after the safety mechanism is installed in the solid rocket motor, there is a test safety risk
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[0041] The embodiments of the present invention are described in detail below, and the embodiments are exemplary and intended to explain the present invention, but should not be construed as a limitation of the present invention.
[0042] Because the safety ignition mechanism is equipped with pyrotechnics, for safety design, the test current of all electrical parameters applied to the safety mechanism is far less than the maximum allowable safe current of the pyrotechnics.
[0043] (1) Low value resistance measurement
[0044] The resistance of the actuating component and the state switch resistance are both less than 100Ω, especially when the state switch resistance is stable and the output resistance is less than 0.5Ω, it can be regarded as a low value resistance measurement.
[0045] Due to the long cable length between the digital unit tester of the safety ignition mechanism and the mechanism under test, and the micro-current must be used to measure the resistance of the a...
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The invention provides a safe ignition mechanism unit tester. The safe ignition mechanism unit tester comprises a human-computer interaction platform, an interface expansion and an acquisition module,a power supply module, a resistance measurement module, a voltage measurement module, a current measurement module, a state monitoring and state transformation timing module, an actuating source voltage adjusting and voltage regulating module, an actuating component sequential action controlling and protecting module, a to-be-tested product interface, and a measurement path switch array. According to the safe ignition mechanism unit tester, various resistance parameters of the safe ignition mechanism and transformation current, voltage, real-time state monitoring, and transformed timing are accurately measured; and the safe ignition mechanism unit tester is applied to the development, production, and testing of a safe ignition mechanism and has relatively high test safety and reliabilityespecially when the safe ignition mechanism unit tester is used for testing products loaded with solid engines, missiles, rockets, and satellite.
Description
technical field [0001] The invention relates to the technical field of solid rocket motor safety ignition mechanism testing, in particular to a safety ignition mechanism unit tester. Background technique [0002] Safety ignition mechanism is one of the core components of solid rocket motors, and is the ignition safety device of solid rocket motors of missiles, rockets and satellites. The safety ignition mechanism realizes the reliable transition between the release state and the insurance state through the sequential actions of the internal components. [0003] The safety ignition mechanism is mainly composed of actuating components, state switch circuits and pyrotechnics. After the safety ignition mechanism receives the electrical signal of the release state, it controls the actuating component to move in place and lock the position, and externally indicates that the safety mechanism is currently in the release state through the state switch circuit, and reliably establish...
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Inventor 李博白向林刘娜方卫宗西霞张瑗魏明李宏朱波
Owner XIAN AEROSPACE PROPULSION TESTING TECH RES INST