Capacitive orientation detection circuit

Abstract

The invention relates to a capacitive orientation detection circuit. The capacitive orientation detection circuit is characterized by comprising an emitter electrode, three receiver electrodes, a power supply module, an oscillation circuit and a detection circuit; through the capacitive orientation detection circuit, target detection and orientation identification can be realized, the capacitive orientation detection circuit is mainly applicable to conducting objects such as armored objects and airplanes; the capacitive orientation detection circuit is technically characterized in that multiple detection electrode sets are disposed in the space, distances from a target to electrodes are different, and target orientation can be derived according to difference of demodulation voltage change amount; the receiver electrodes employ a multi-receiver-electrode array mode, and independent three-path detectors are utilized for detection. The capacitive orientation detection circuit is advantaged in that a capactive proximity sensing fuse working in a quasi-electrostatic field has properties of high spacing precision, good electromagnetic interference resistance and stealth resistance, and the capacitive orientation detection circuit can be in matching with any bomb with burst height requirements about 2m, and is especially suitable for bombs in strong electromagnetic interference field operation environments.

Description

technical field [0001] The invention belongs to the technical field of sensor target detection and is mainly applied to bomb-borne fuzes. Background technique [0002] The fuze is an information control system that uses environmental information, target information, or specified information to implement detonation control, ignition control, and attitude control on ammunition at a desired time and space. The development of electronic countermeasures has seriously threatened the proximity fuzes of some systems, especially the radio proximity fuzes. [0003] At present, in foreign scientific and technological materials about capacitor proximity fuzes, no specific examples have been found of using the principle of capacitor detection to achieve target orientation detection. The blowpipe missile capacitor fuze of the British company Markney uses two detection electrodes that are symmetrical to the bomb axis. , but it does not meet the requirements for directional detection. Rel...

AI Technical Summary

Problems solved by technology

[0007] In the directional detection methods of the proximity fuzes of the above several different systems, the detection accuracy of the target azimuth is not ideal enough, and it can only reach the level of determining the target area within a quadrant

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