A microsecond-level multi-channel synchronous detonation time high-precision measurement method

A measurement method and multi-channel technology, which is applied in the field of high-precision time measurement, can solve problems such as not being retrieved, and achieve the effects of improving reliability, improving anti-interference, and increasing magnitude

Inactive Publication Date: 2014-04-09
BEIJING AEROSPACE INST OF THE LONG MARCH VEHICLE
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Currently no measurement methods that meet the abo

Method used

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  • A microsecond-level multi-channel synchronous detonation time high-precision measurement method
  • A microsecond-level multi-channel synchronous detonation time high-precision measurement method
  • A microsecond-level multi-channel synchronous detonation time high-precision measurement method

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Embodiment Construction

[0023] Such as figure 1 , 2 As shown, the system on which the method of the present invention relies includes an electrical probe 1, a low-noise cable 2, a voltage conversion circuit 3, a pulse shaping circuit 4, and a data acquisition system 5. The electrical probe 1 is placed at the position to be measured, and the electrical probe 1 and the pulse shaping circuit 4 are connected with the low-frequency noise cable 2, the voltage conversion circuit 3 and the pulse shaping circuit 4 are connected inside the circuit board, and the pulse shaping circuit 4 is connected with the data acquisition system 5. Each of the 24 channels is equipped with a separate set of equipment (including electrical probe 1, low-noise cable 2, voltage conversion circuit 3, and pulse shaping circuit 4), and all channels share a data acquisition system 5.

[0024] The workflow of the embodiment of the present invention is described in detail as follows. Before the test, fix the electrical probe 1 on eac...

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Abstract

A microsecond-level multi-channel synchronous detonation time high-precision measurement method, including an electric probe, a low-noise cable, a voltage conversion circuit, a pulse shaping circuit and a data acquisition system, wherein the connection method is: one end of the electric probe is fixed on the For each channel to be measured in the test, the other end is connected to the low-noise cable, the low-noise cable is connected to the signal input end of the pulse shaping circuit, and the signal output end of the pulse shaping circuit is connected to the data acquisition system; The forming circuit supplies power, the test is ignited and detonated, the electric probe is naturally turned on under the action of detonation, the pulse forming circuit will transform the switch state of the electric probe into a positive pressure pulse signal with a certain timing, and convert the positive pressure The pulse signal is input to the data acquisition system, and the synchronous detonation time of each channel can be obtained by reading the time of the positive pressure pulse signal.

Description

technical field [0001] The invention relates to a high-precision time measurement method, in particular to a microsecond-level multi-channel synchronous detonation time high-precision measurement method, which belongs to the technical field of missiles. Background technique [0002] In the ground test of the warhead, it is necessary to measure the explosion and shock, correctly analyze the time interval signal of the detonation wave and the shock wave, and quickly judge the validity of the recorded signal, which plays an important role in verifying and optimizing the design of the warhead . [0003] Now there are many models of measurement systems for measuring time intervals. Smart detonation velocity meters are commonly used time measurement systems, which can be used for detonation velocity measurement of explosives, velocity measurement of high-speed moving objects, and time measurement of the explosion process. The special channel of the intelligent detonation speed me...

Claims

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Application Information

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IPC IPC(8): G04F10/04
Inventor 薛云朝吴宏斌孙倩华郭昱薛再清曹达彩
Owner BEIJING AEROSPACE INST OF THE LONG MARCH VEHICLE
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