温度传感器水检时间常数重复性技术研究

The Technical Research of Temperature Sensor Response Time Repeatability of Water Inspection

对温度传感器测试结果影响因素进行分析,找出基于温度传感器水检时间常数测试结果重复性差的问题,在排除同一产品温度传感器本身因素(材料、结构、工艺)的前提下,系统测量对于测试结果的一致性和重复性是至关重要的。从试验结果的统计数据中可以发现,通过对测试介质流速、示波器参数设置、测试位置逐项分析验证、优化改进,归纳总结详细的水检时间常数测试方法,最终达到温度传感器水检时间常数具有可重复性测试的目的。

This paper analyze the influencing factors of the temperature sensor test results,and find out the problem of poor repeatability of the test results based on the water detection time constant of the temperature sensor.On the premise of excluding the factors(material,structure and process)of the temperature sensor of the same product,the system measurement is very important for the consistency and repeatability of the test results.From the statistical data of the test results,it can be found that through the item by item analysis,verification,optimization and improvement of the test medium flow rate,oscilloscope parameter setting and test position,the detailed test methods of water detection time constant are summarized,and finally the purpose of repeatability test of water detection time constant of temperature sensor is achieved.