Automatic Testing And Calibration System Apply High Precise Digital Display Time Grating Sensor

Due to the lack of rare effective experience ,various design schemes confront us to be chosen. Each design scheme includes various kinds of material, structure style preferences and so on. If any parameter is changed, there are a lot of feasibility studies must to be done. In addition, the design of high precise time grating sensor need collect much more experiment data to express original error, so to a great extent, the curve fitting which can substitute the true one can be got and the precise of time grating sensor can be improved much more. There are a lot of inevitable problems we must confront with during promoting time grating sensor from lab to market and practical application, such as much cost which results from ample and various kinds of experiment calibration.In such above process, depending on past method collecting data from many experiments only by hand is not scientific and practicable.In such circumstance writer engage in research'the automatic testing and control system apply high precise digital display time grating sensor research'for circular division time grating sensor supported by Natural Science Fund. The main research content as follow :1. A automatic high-precision positioning system has been designed. A closed-loop control has been formed by setting ARM as cpu which controls Stepper motor driving revolving dial and at the same time receives feedback signal from time grating sensor and communicates with PC though USB2. Researching internal control of the stepper motor and control algorithm of velocity in order to make the actual systemic orientation precision to reach±1″. Besides the system can be used for exploitation, which is facing non-linear error automatic fitting of time grating displacement sensor,the correlative technique which has far-ranging application prospects also can be sued in other areas, such as apparatus revise, mechanical workout and manufacturing ,3. Designing the perfect upping test system and realizing full automatic data acquisition and processing, and then achieving elementary Intelligence of software which can be to achieve automatic fitting of data and to achieve non-linear error automatic fitting of time grating displacement sensor.In this context, under the research request of high-precision time grating displacement sensor, the automatic measurement system which has been designed will promote products and marketization of time grating displacement sensor. Therein baseline vision and realization of the full feedback stepper motor controlling which will be benefit to research high-precision time grating displacement sensor .