|
In industrial process control field, the temperature is a very important physical parameter. Because the thermocouple has stable performance, simple structure, convenient use, can be accurate and reliable, wide range of temperature measurement, signal remote transmission characteristics, make its in the industrial production and scientific research has become the most widely used in fields such as temperature components. Testing thermocouple time constant is of great significance for the requirement of fast response thermocouples, help to understand the difference of different encapsulation structure response speed, in more than just the response speed of the thermocouple matching and inspection thermocouple end within magnesium oxide is used widely in the infill. This paper mainly consists of measurement system hardware design and software design of two parts. Among them, the hardware design including sensors, signal amplification and sampling system, on STC microcontroller and PC machine processing system, the man-machine exchange system, a part of the component system, this paper has made the detailed introduction. Software part is to use Visual Studio 2008 as a development platform, C
|