Terminal sensitive projectile coil-magnetic resistance combined geomagnetic attitude measurement recorder and working method thereof

Abstract

The invention discloses a terminal sensitive projectile coil-magnetic resistance combined geomagnetic attitude measurement recorder and a working method thereof. The recorder comprises a sensor module, a power management module, a processor module and a memory module. The sensor module comprises a coil type geomagnetic sensor, a reluctance type geomagnetic sensor and an operational amplifier circuit and is used for collecting geomagnetic measurement information of the terminal sensitive projectile in the air movement process. The power supply management module comprises a linear voltage regulator (LDO) circuit, a voltage conversion circuit and a series voltage reference circuit, and provides a voltage source for the whole system circuit; and the processor module and the memory module mainly comprise a 51 single-chip microcomputer circuit and a Flash memory circuit and are used for processing and storing sensor data. According to the geomagnetic attitude measurement recorder, the coil type geomagnetic sensor and the magnetic resistance type geomagnetic sensor are designed in a combined manner, so that the defect that static measurement cannot be realized only by adopting the coil type geomagnetic sensor is overcome, the defect that interference is easily caused when only the magnetic resistance sensor is adopted is overcome, and the overall measurement performance of the geomagnetic attitude measurement recorder is improved.

Description

technical field [0001] The invention belongs to the field of projectile attitude measurement, and in particular relates to a terminal-sensitive elastic coil-reluctance combined geomagnetic attitude measurement recorder and a working method thereof. Background technique [0002] With the improvement of the geomagnetic theory and the continuous improvement of the performance of the geomagnetic sensor, the geomagnetic attitude measurement technology has also been developed rapidly. The bomb-borne attitude measurement method based on the geomagnetic sensor has low cost, moderate accuracy, good concealment and high overload resistance. Etc. For the attitude measurement methods of other smart ammunition, such as solar azimuth sensor attitude measurement, inertial / satellite combination attitude measurement and other methods, the cost of use is high, and the performance of most inertial devices is difficult to meet the high dynamic environment requirements when the projectile is mov...

AI Technical Summary

Problems solved by technology

For the attitude measurement methods of other smart ammunition, such as solar azimuth sensor attitude measurement, inertial / satellite combination attitude measurement and other methods, the cost of use is high, and the performance of most inertial devices is difficult to meet the high dynamic environment requirements when the projectile is moving. Relevant device selection is limited

However, the existing separate coil-type geomagnetic sensor is used for geomagnetic recorders to measure geomagnetic information, which has the disadvantage of being easily disturbed and cannot be measured in a static environment.

Images