Abstract
This paper investigates a high-precision and wide range measurement dual-axis tilt sensor. A method to improve the tilt sensor's range is specially put forward. With the measurement tilt increases, the sensitivity of the tilt sensor decreases seriously. As a result, the tilt measurement range is restricted. A closed loop dual-axis measurement system which is mainly constructed by dual-axis acceleration sensor, microprocessor, and digital potentiometer is proposed to come over this problem. An intelligent judgment method is put forward to solve the variable sensitivity problem caused by the variable sensitivity issues. Finally, a real dual-axis tilt measurement system experimental platform is constructed, which achieves the sensitivity automatically adjustment. The experimental result shows that the system can improve the sensitivity and the measurement range greatly.
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