Fixed-distance air-blast fuse electronic head detector

Abstract

The invention discloses a fixed-distance air-blast fuse electronic head detector. The detector is composed of a control module, a power supply module, a self-checking module, a setting module, a setting device, a sine amplification circuit module, a speed measurement signal generation module, an unholding ignition detection module and a display module. The self-checking module detects the connection condition between the fuze and the detector and feeds back the detection result to the control module; the setting module inputs an instruction to the setting device, the setting device supplies direct current power to the fuze and provides setting information, and a setting result is fed back to the control module; after direct-current power supply of the fuze is cut off, the sine amplification circuit module supplies alternating-current power to the fuze; the speed measurement signal generation module outputs a pulse signal and corrects time after receiving the power-down signal, and the de-holding ignition detection module detects the de-holding ignition time and voltage of a fuse and feeds back a measurement result to the control module, so that the general control of the control module is realized, and the working effect of full-flow automatic detection is achieved.

Description

Technical Field

[0001] The invention belongs to the technical field of fuzes, and in particular relates to an electronic head detector for a fixed-range air burst fuze. Background Art

[0002] The electronic head of the fixed-range airburst fuze is the explosion point control system of the weapon. It not only ensures the safety of the fuze itself during use, but also determines the detonation time, action mode and action position to maximize the power of the warhead. In order to ensure the quality of products in scientific research and mass production, the product performance in each important link must be fully tested during production, especially the quality control of the factory inspection process of the electronic head of the fuze, which is related to whether the product can function normally after being equipped and exert the expected combat effectiveness.

[0003] Lu Mingyang from Nanjing University of Science and Technology's "Design and Implementation of Rocket Air-burst Fuze Test System" extracts specific functional requirements and index requirements based on the test requirements of multiple links such as air-burst fuze circuit board function test, post-assembly test and post-potting test, and designs the test system based on the fuze working principle and modular design ideas; Cao Pan from Nanjing University of Science and Technology's "Design and Performance Analysis of a Fuze Circuit Automatic Detector" uses a semi-physical simulation method to perform performance testing on the hard target penetration fuze control circuit. The upper computer controls the lower computer to output analog signals in real time, and collects the output signals of the fuze control circuit to determine the circuit performance.

[0004] In summary, the existing fuze tester can only perform performance tests on each module of the fuze control circuit one by one, and cannot perform full-process automatic detection of the fuze electronic head. Summary of the invention

[0005] The purpose of the present invention is to provide a fixed-range air-burst fuze electronic head detector, which is used to detect the full-process working process of the fixed-range air-burst fuze electronic head under different working conditions under laboratory conditions.

[0006] The technical solution to achieve the purpose of the present invention is as follows: the present invention provides a fixed-range air-burst fuze electronic head detector, which is composed of a control module, a power module, a self-test module, a setting module, a setter, a sine amplifier circuit module, a speed measurement signal generation module, a release and ignition detection module and a display module;

[0007] The control module controls the operation of other modules;

[0008] The self-check module detects the connection between the fuze and the detector, and feeds back the detection result to the control module;

[0009] The setting module inputs instructions to the setter, the power module provides part of the DC power to the setter, the setter provides DC power to the fuze and provides setting information, and feeds back the setting result to the control module;

[0010] The DC power supply of the fuze is disconnected, and the sinusoidal amplifier circuit module provides AC power supply for the fuze; the speed measurement signal generation module outputs two pulse signals after receiving the power-off signal to correct the fuze release and ignition time; the release and ignition detection module measures the fuze release and ignition time and voltage, and feeds the measurement results back to the control module;

[0011] The display module displays the working status of the detector in real time.

[0012] Compared with the prior art, the significant improvements of the present invention are: (1) the present invention realizes full-process detection under the control system; (2) the present invention simulates the full-process related environment of the fuze under different working conditions, from launch preparation, muzzle velocity measurement to exterior ballistic flight, so as to detect the reliability of the fuze under various working conditions; (3) the present invention detects the fuze electrolytic protection performance and fixed-distance ignition time correction function, effectively evaluates the working performance of the fuze electronic head, reduces the number of live-fire tests, and improves the quality control level of fuze products.

[0013] In order to more clearly illustrate the functional characteristics and structural parameters of the present invention, further description is given below in conjunction with the accompanying drawings and specific implementation methods. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0015] Figure 1 It is a schematic diagram of the relationship between the electronic head detector and the fuze of the fixed-range air burst fuze of the present invention.

[0016] Figure 2 The present invention is a flowchart of the electronic head detector for fixed-range air burst fuze.

[0017] The reference numerals in the figure are: 1-control module, 2-power module, 3-self-test module, 4-setting module, 5-setter, 6-sine amplifier circuit module, 7-speed measurement signal generating module, 8-release and ignition detection module, 9-display module. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0019] like Figure 1As shown, the electronic head detector of the fixed-range air-burst fuze of the present invention is composed of a control module 1, a power module 2, a self-test module 3, a setting module 4, a setter 5, a sinusoidal amplifier circuit module 6, a speed measurement signal generating module 7, a release and ignition detection module 8, and a display module 9.

[0020] The electronic head tester for fixed-range air-burst fuzes simulates the overall working process of the electronic head of the fuze under different speeds and altitudes under laboratory conditions. During the test, after selecting the setting information, the corresponding switch is pressed (4 switches correspond to 4 different working conditions). The tester gives a setting signal and a speed measurement signal, and at the same time simulates the power generation of the turbine motor during the flight of the projectile, and detects the electrolytic protection performance of the fuze and the fixed-range ignition time correction function.

[0021] Combination Figure 1 , Figure 2 After the 220V power supply is turned on, the computer power supply ATX-24PIN in the power module 2 first outputs 5V to power other modules of the detector. The power module 2 provides 5V DC to the setter 5, and the setter 5 outputs 20V DC to power the fuse and provide setting information. The self-test module 3 detects the current at the connection between the detector and the fuse, and feeds back the self-test result to the control module 1;

[0022] When the control module 1 detects normally, it selects the information to be set and presses the corresponding switch, and instructs the setting module 4 to control the on-off of the contacts through the relay to simulate the way of pressing the keyboard, and controls the setter 5 to input, so as to complete the setting of the tested fuze, and provide the fuze with the necessary external field information, which can be different speeds, different altitudes, etc., and feed back the setting results to the control module 1;

[0023] After the setting is completed, the control module 1 controls the DC power supply switch to be disconnected, and the sinusoidal amplifier circuit module 6 starts to supply AC power to the fuze. The AC power supply simulates the state of the turbine motor generating electricity to supply power to the fuze during the flight process after the projectile is launched; the speed measurement signal generation module 7 uses the 3.3V power supply output by the power supply module 2 to make the power-off signal input into the C8051F410 single-chip microcomputer through the resistor voltage divider. After receiving the trigger signal, the C8051F410 single-chip microcomputer delays 1ms to send out two pulse signals. After the pulse signal passes through the amplifier circuit, it simulates the pulse generated when the coil passes through the two coils on the barrel when the projectile is launched. The initial velocity of the projectile is calculated from the distance between the two coils and the time interval between the two pulses to correct the release and firing time of the fuze; at the same time, the release and firing detection module 8 uses the STM32F407 chip to measure the time from the power-off of the fuze to the issuance of the release and firing instructions, as well as the release and firing voltage values ​​through the timer and ADC pin, and feeds back to the control module 1 to determine whether it is normal. If the detection is normal, the power supply is disconnected to complete the detection.

[0024] The display module 9 is an LCD display screen, which is powered by 5V output by the power module 2 and is connected to the control module 1 through the RX and TX communication pins. According to the information output by the control module 1, it is used to display the working process of the detector in real time.

[0025] Although specific embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fixed-range air-burst fuze electronic head detector, characterized in that: It consists of a control module, a power module, a self-test module, a setting module, a setter, a sine amplifier circuit module, a speed measurement signal generation module, a release and ignition detection module and a display module; The control module controls the operation of other modules; The self-check module detects the connection between the fuze and the detector, and feeds back the detection result to the control module; The setting module inputs instructions to the setter, the power module provides direct current to the setter, the setter provides direct current power to the fuze and provides setting information, and feeds back the setting result to the control module; The DC power supply of the fuze is disconnected, and the sinusoidal amplifier circuit module provides AC power supply for the fuze; the speed measurement signal generation module outputs two pulse signals after receiving the power-off signal to correct the fuze release and ignition time; the release and ignition detection module measures the fuze release and ignition time and voltage, and feeds the measurement results back to the control module; The display module displays the working status of the detector in real time.

2. The electronic head detector for fixed-range air burst fuze according to claim 1 is characterized in that: The setting module controls the setter through a simulated keyboard, and the power module provides 5V DC power to the setter. The setter inputs 20V DC power and setting information to the fuze, and feeds back the setting result to the control module.

3. The electronic head detector for fixed-range air-burst fuze according to claim 1 is characterized in that: The speed measurement signal generating module is a power supply module that outputs 3.3V DC power to power the speed measurement signal generating module. After receiving the trigger signal, the speed measurement signal generating module sends out two pulse signals with a delay of 1ms to correct the fuse arming and ignition time.

4. The electronic head detector for fixed-range air burst fuze according to claim 1 is characterized in that: The control module is based on the STM32F4 series single-chip microcomputer.

5. The electronic head detector for fixed-range air burst fuze according to claim 1 is characterized in that: The speed measurement signal generation module is based on the C8051F410 single chip microcomputer.

6. The electronic head detector for fixed-range air burst fuze according to claim 1 is characterized in that: The power module body is a computer power supply ATX-24PIN, which outputs 3.3V and 5V DC power to supply power to the corresponding modules of the detector after being connected to a 220V power supply.

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