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A safety ignition mechanism unit tester

A technology of ignition mechanism and tester, used in rocket engine installations, mechanical equipment, machines/engines, etc.

Active Publication Date: 2021-05-04
XIAN AEROSPACE PROPULSION TESTING TECH RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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

Method used

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  • A safety ignition mechanism unit tester
  • A safety ignition mechanism unit tester
  • A safety ignition mechanism unit tester

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Embodiment Construction

[0041] 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 limiting the present invention.

[0042] Since the safety ignition mechanism is equipped with pyrotechnics, it is designed for safety, and the test current of all electrical parameters measured on the safety mechanism is far less than the maximum allowable safe current of the pyrotechnics.

[0043] (1) Low value resistance measurement

[0044] Both the resistance of the actuating component and the resistance of the state switch are less than 100Ω, especially when the resistance of the state switch is stable and the output is less than 0.5Ω, it can be regarded as a low-value resistance measurement.

[0045] Since the safety ignition mechanism digital unit tester is connected to the tested mechanism with a long cable length, and micro-current must be used to measure the actuating components and ...

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Abstract

The invention proposes a safety ignition mechanism unit tester, including a human-computer interaction platform, an interface expansion and acquisition module, a power supply module, a resistance measurement module, a voltage measurement module, a current measurement module, a state monitoring and state conversion timing module, and an actuation source Voltage regulating and stabilizing module, sequential action control and protection module of actuating components, interface of tested product and switch array of measurement path. The invention accurately measures various resistance parameters of the safety ignition mechanism, measures the switching current and voltage in the switching process, monitors the real-time state and timings the switching in place. The present invention is applied in the development, production and testing of safety ignition mechanism, especially when it is used in the testing of products loaded into solid motors or products loaded into missiles, rockets and satellites, it has high testing safety and reliability .

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] The safety ignition mechanism is one of the core components of the solid rocket motor, and it is the ignition safety device of the solid rocket motor of missiles, rockets and satellites. The safe ignition mechanism realizes the reliable transition between the unlocked state and the safe state through the sequential actions of 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 movement of the actuating component and locks it, and then indicates to the outside through the status switch circuit that the safety mechanism is currently in the release state, and reliably establ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02K9/96
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