| Summary: | 碩士 === 大葉大學 === 車輛工程學系碩士班 === 96 === The research of this thesis, mainly lies in installs on the rotation axis the SAW pattern torque sensor element wireless sound wave gauging, uses 8051 chip systems control RF chip to take the transmitting and the receiving, and aim at SAW the characteristic design center frequency search formula, the goal are must when the rotation axis the torque change may gauge its change degree immediately, applies by the immediate monitor way in the vehicles electron domain perhaps needs the immediate monitoring in the precise processing environment, may in measure thing torque when transmitted receives signal and with other system communication the torque size, the system mainly uses the RSSI to find the SAW center frequency value, and has not calculated the drift of frequency with the stressful condition. The wireless part installs by the short distance type antenna on the axis, will not influence the signal transmission. The drift of frequency result passes to CANBUS , may penetrate the CANBUS communication with the present vehicles electron system.
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