A test device and method for the resistance value of the detonation bridge wire of satellite pyrotechnics
A technology for testing devices and pyrotechnics, applied in measuring devices, measuring electrical variables, measuring resistance/reactance/impedance, etc., can solve the problems of long test time, inability to complete the measurement, and many manual operations, so as to improve test efficiency , flexible use, high safety effect
Active Publication Date: 2019-02-12
BEIJING INST OF SPACECRAFT SYST ENG
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Problems solved by technology
However, the traditional test method can only complete the measurement of the single-point pyrotechnic product path. If the pyrotechnic product path to be tested on the satellite is multi-point parallel (such as two-point or four-point parallel connection), the traditional measurement method cannot complete the measurement.
At the same time, the traditional measurement method has the defects of many manual operations and complicated process, which takes a long time for testing
Method used
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[0035] Preferably, the switch control body of the specific embodiment of the present invention is composed of a two-stage 5-group switch control circuit of 35 channels, an input terminal and a measurement terminal, which can support up to 35 channels of pyrotechnics channel measurement. The present invention will be further introduced below in conjunction with the accompanying drawings.
[0036] Such as figure 1 It is a test connection schematic diagram of the present invention, including an electric explosion component measuring instrument and a pyrotechnic resistance testing device;
[0037] The input terminal of the electric explosion component measuring instrument SC20-3 includes a positive terminal and a negative terminal;
[0038] The pyrotechnic resistance test device includes a switch control body and a test network;
[0039] The switch control body includes a measurement terminal XC, an input terminal XE, and a switch control circuit including N switches;
[0040] ...
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The present invention provides a method and device for testing satellite initiating explosive device exploding bridge wire resistance by using a testing method with the combination of an initiating explosive device resistance testing device and an electric explosion element measuring instrument, and the problem of the difficult measurement of a satellite multi-point parallel initiating explosive device path is solved. The testing device comprises an initiating explosive device resistance testing device and the electric explosion element measuring instrument. The initiating explosive device resistance testing device comprises a switch control body and a test network. The switch control body comprises M groups of N-path switch control circuits, an input end XE and a measuring end XC. A test network is a test cable, a satellite end tested initiating explosive device path is redistributed according to a positive end and a negative end, the parallel positive end of the initiating explosive device path is connected to the input end XE of the switch control body. The input end of the electric explosion element measuring instrument is connected to the measuring end XC of the switch control body.
Description
technical field [0001] The invention belongs to the field of electronic measurement, and in particular relates to a test device and method for the resistance value of a satellite pyrotechnic product detonating bridge wire. Background technique [0002] The measurement of the resistance value of the pyrotechnic product detonating bridge wire of the satellite is one of the more important test items. The traditional test method is generally manual measurement, that is, the channel of the pyrotechnic product to be tested at the satellite end is led to the ground through the cable, and the connected normal The electric explosive element measuring instrument of the negative wire is used for measurement, and the positive and negative nodes of the measured object are switched through the positive and negative wires to obtain the resistance value of each pyrotechnic product path under test (ground error needs to be subtracted). However, the traditional test method can only complete t...
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IPC IPC(8): G01R27/02
CPCG01R27/02
Inventor 朱琳张月訚梦楠闫金栋
Owner BEIJING INST OF SPACECRAFT SYST ENG