| Attitude sensor is an important tool to detect a change in attitude angle.its detection has a very important role in military, industrial,aerospace, navigation and in daily life.In this paper, based on MEMS gyroscope design a new type of three-dimensional attitude sensor,the sensor can test the three direction angle,also suitable for measuring the angle of a variety of environments.This article first to the MEMS technology and attitude sensor technology development and the existing problems are introduced. And then through the analysis of the principle, the transformation of the relationship between the acceleration and angular velocity and Angle is introduced,design the overall framework of attitude sensor,and according to the frame has carried on the detailed design, including the following parts of:1For shell part has carried on the design.According to the "quality of the most light, the smallest volume" principle designed a sensor shell.2For the design of the circuit part.Mainly includes circuit power supply module, controller module, Angle detection module, the gyroscope module, CAN communication module, filter module.3The design of software measurement process.Secondly, the sensor in high shock and vibration, high electromagnetic interference, use environment,in between the shell and the circuit,hardware and software to do the reliability of the design.Through the reliability design of all parts,the sensor can accurately in various environments of continuous work.Finally according to the characteristics of the system analyzed the source of the error,and then through the corresponding compensation to make these error disappear or reduce as much as possible,such measurements have higher data authenticity. From the results of the experiment can be obtained:In this paper, three-dimensional attitude sensor can be designed to meet a variety of basic conditions of use,but due to constraints of MEMS gyroscope chip itself,the sensor can only measure precision is less than... |
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