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This paper discusses the basic theory of wire wound potentiometer, design principle, and the resistor winding method. This paper from the view of engineering practice, combined with related potentiometer and thermocouple principle, discusses the potentiometer from design stage to product in use phase of the whole process: the problems encountered in the design, production and solution of key technology are discussed, the computer is programmed to automatically control winding pitch, in order to gain potentiometer with thermocouple matching the nonlinear output characteristic.The test results show that, this paper developed the potentiometer indicators fully meet the design requirements, some of the indicators have reached the domestic advanced level.
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