Magnetic Detection Application In Trajectory Correction Bomb

This research of this paper belongs to the item of "two-dimensional trajectorycorrect fuze". The trajectory correct fuze can work well if the information of azimuthand attitude is got correctly and in time during the pill flying. The earth issurrounded by the geomagnetism. The geomagnetism is stable and has someregulation. The pill is always in the geomagnetism during flying. If this can be wellused, the information of attitude can be got correctly. The part that detects magneticdata of attitude in this design is using high precision MR sensor. The signal ofattitude is processed in requested time and requested precision. At last, the systemworks out the result of the attitude.The two-dimensional detecting system is designed by using two-axes MRsensor and C8051 single chip, including its geomagnetism signal detecting circuitry,set/reset circuitry and signal modulate circuitry. Similarly, the three-dimensionaldetecting system is designed by using three-axes MR sensor.Research has been done on the following aspects: how to work out the result ofthe roiling angle, how to use the information of the attitude to control the time whenthe canard should be opened in the two-dimensional detecting system and how towork out the result of three angles in the three-dimensional detecting system. Byusing the date of static experiment and the date of dynamic experiment, some kindsof error in the two-dimensional exploring system are analyzing and the solvingmethods are given.