Doppler constant-height proximity fuse circuit for fire-extinguishing bullet
A technology of proximity fuze and Doppler signal, applied in the field of Doppler fixed height proximity fuze circuit of fire-extinguishing bombs, and can solve the problems of inability to extinguish tree canopy fire, time fuze blasting point height error, etc.
Inactive Publication Date: 2012-08-01
710TH RES INST OF CHINA SHIPBUILDING IND CORP
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Problems solved by technology
It has been verified by experiments that there is a large error in the height of the blasting point of the time fuze, and the ground contact action of the impact fuze can only suppress the ground fire and cannot extinguish the crown fire.
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[0012] The present invention will be further described below in conjunction with specific implementation methods.
[0013] Such as Figure 1 ~ Figure 4 As shown, U1 is SPX1117 (regulated power supply chip), U2 is ARM7 microcontroller LPC2132, U3 is Doppler sensor module HB100, U4 is operational amplifier LM324, U5 is Darlington tube ULN2004, G1 is crystal oscillator, Q1 is FET 2sj355. The capacitance of C1 and C2 is 30pF; the capacitance of C3 and C4 is 0.1uF; the capacitance of C5 is 0.01uF and the capacitance of C6 is 4.7uF; the value of L1 and L2 is 10uH; the resistance of R1 is 510Ω; The resistance value of R2 is 6.8kΩ; the resistance value of R3 and R4 is 2kΩ; the resistance value of R5 and R9 is 10kΩ; the resistance value of R6 is 12kΩ; the resistance value of R7 is 20kΩ; the resistance value of R8 is 330kΩ; C1~C5 It is a ceramic chip capacitor, C6 is an electrolytic capacitor, G1 is a crystal oscillator, L1 and L2 are inductors, Q1 is a field effect tube, R1~R8 are me...
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The invention relates to a Doppler constant-height proximity fuse circuit for a fire-extinguishing bullet. The Doppler constant-height proximity fuse circuit comprises a microprocessor information processing circuit, a power supply, an electric control circuit, a Doppler signal detection and amplification circuit and a head fuse detonating output control circuit, wherein one end of C1 in the microprocessor information processing circuit is connected with the analog ground; one end of C2 is connected with the analog ground; one end of G1 is connected with the other end of the C1 and a pin 62 of U2; the other end of the G1 is connected with the other end of the C2 and a pin 61 of the U2; one end of R5 is connected with a plus 3.3V analog power supply, and the other end of the R5 is connected with a pin 41 of the U2; a pin 7 and a pin 63 of the U2 are connected with a plus 3.3V digital power supply; pins 23, 43 and 51 of the U2 are connected with the plus 3.3V analog power supply; pins 6, 18, 25, 42 and 50 of the U2 are connected with the analog ground; and a pin 59 of the U2 is connected with the digital ground. The circuit adopts the microprocessor information processing, power supply voltage detection and Doppler signal detection technology and achieves the function of constant-height proximity on the forest fire-extinguishing bullet.
Description
technical field [0001] The invention relates to a fuze technology which adopts the Doppler effect on a fire extinguishing bomb to carry out the function of fixed-altitude proximity explosion, in particular to a fire-extinguishing bomb Doppler fixed-height proximity fuze circuit. Background technique [0002] Forest resources are one of the most important resources on the earth. It can not only provide valuable raw materials such as wood for life and production, but also provide many foods and items for human life. At the same time, it can effectively regulate climate, maintain Water and soil, preventing and mitigating drought and flood disasters, and effectively resisting wind, sand and hail. However, fire will ruthlessly destroy all of this, causing huge and irreparable losses. How to quickly and effectively extinguish the fire and reduce losses is very important. [0003] In order to give full play to the fire extinguishing performance of forest fire extinguishing bombs,...
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IPC IPC(8): F42C13/04A62C19/00G05B19/04
Inventor 何苗詹盛武
Owner 710TH RES INST OF CHINA SHIPBUILDING IND CORP