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A kind of pyrotechnic resistance measurement circuit for automatic calibration of multi-channel pyrotechnic circuits

A technology of resistance measurement and resistance value measurement, which is applied in the direction of measuring electrical variables, measuring resistance/reactance/impedance, measuring devices, etc., and can solve problems such as excessive measurement current measurement circuit, potential safety hazards, and non-independent normal working circuits. , to achieve the effect of improving safety, improving accuracy and improving precision

Active Publication Date: 2019-09-06
BEIJING AEROSPACE INST OF THE LONG MARCH VEHICLE +1
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AI Technical Summary

Problems solved by technology

[0002] At present, the measurement of the resistance of pyrotechnics usually adopts manual measurement methods. In a few automatic measurement schemes, there are problems that the measurement current is too large or the measurement circuit is not independent of the normal working circuit, which makes the process of measuring the resistance of pyrotechnics cumbersome and dangerous. Sexual hazards

Method used

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  • A kind of pyrotechnic resistance measurement circuit for automatic calibration of multi-channel pyrotechnic circuits

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Embodiment Construction

[0019] Such as figure 1 As shown, a pyrotechnic product resistance measurement circuit that automatically calibrates a multi-channel pyrotechnic product circuit, the multi-channel pyrotechnic product circuit includes a parallel first pyrotechnic product working branch, a second pyrotechnic product working branch , the third pyrotechnic product working branch and the fourth pyrotechnic product working branch; the first pyrotechnic product working branch is provided with a first pyrotechnic product resistor R4 and a first pyrotechnic product working switch K1; The second pyrotechnic product working branch is provided with a second pyrotechnic product resistor R5 and a second pyrotechnic product working switch K2; the third pyrotechnic product working branch is provided with a third pyrotechnic product resistor R6 and a third pyrotechnic product The working switch K3 of the pyrotechnic product; the fourth pyrotechnic product working branch is provided with the fourth pyrotechnic ...

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Abstract

The invention provides an initiating explosive device resistance measurement circuit capable of automatically calibrating a multipath initiating explosive device circuit. The multiple initiating explosive device circuit comprises multiple initiating explosive device working branches connected in parallel, and each initiating explosive device working branch is provided with an initiating explosive device resistor and an initiating explosive device working switch. The initiating explosive device resistance measurement circuit comprises a constant current source, a digital signal processor, a calibration circuit, a resistor measurement circuit, a resistor measurement parallel circuit and the like. The constant current source is used for providing current for initiating explosive device resistance measurement. The calibration circuit is used for determining errors of the resistor measurement circuit. The resistor measurement circuit and the resistor measurement parallel circuit are used for determining measurement of the initiating explosive device resistor of each initiating explosive device working branch. The digital signal processor is used for recording and determining the true value of a to-be-tested initiating explosive device resistor. The initiating explosive device resistance measurement circuit achieves independent measurement of multipath initiating explosive device resistance in order, and is high in precision and safety.

Description

technical field [0001] The invention relates to a pyrotechnic product resistance measurement circuit, in particular to a pyrotechnic product resistance measurement circuit for automatically calibrating multi-channel pyrotechnic product circuits. Background technique [0002] At present, the measurement of the resistance of pyrotechnics usually adopts manual measurement methods. In a few automatic measurement schemes, there are problems that the measurement current is too large or the measurement circuit is not independent of the normal working circuit, which makes the process of measuring the resistance of pyrotechnics cumbersome and dangerous. sexual hazards. Contents of the invention [0003] The technical solution problem of the present invention is: in order to overcome the deficiency of above-mentioned prior art, provide a kind of pyrotechnic product resistance measuring circuit that automatically calibrates multi-channel pyrotechnic product circuit. [0004] Technic...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R27/14
Inventor 任昌健张竑颉见其拓华烈李宝王悦水涌涛王丰关莹谷静陶然宋景亮程炳琳
Owner BEIJING AEROSPACE INST OF THE LONG MARCH VEHICLE
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