With thermocouple and integrated temperature of sensor make
of control system
Abstract
Temperature, as a basic physical quantity, is one of the most universal and important technical parameters. It has a direct affect on targets o f many products, such as output, quality and consumption of energy and so on, so measuring of the temperature is very important to industry production. In practice, it is difficult to measure accurately the temperature. Measuring of temperature is different from others, for example, measuring of length, measuring of mass. The system of continuous
measuring of the temperature of hot metal introduced勿the paper is the system of 8031 single-chip microcomputer and conventional measuring component-thermocouple. The mathematic model is appropriate, and measurement method is easy to be executed. The electronic components used are anti-jamming, less zero-drift and less temperature-drift. The system is convenient and applicable. It is steady, reliable and so fit to use. A t the same time, it has larger scope of measurement and it can be used in many kinds of object measured. It has intellectualized the process.
The thesis introduces automatic measurement of temperature, including temperature sensor, I/0 of single-chip microcomputer and application software, It can be divided into five parts:
(1) It introduces the development of temperature measurement and special temperature measuring-measurement of molten steel's temperature, as well as the development direction of temperature measurement in the future.
(2) It provides the solution of temperature sensor's selecting, using and setting. It solves the problem of thermocouple whose referenced end's temperature is not 0℃ in the course of measurement
(3) According to the practical demands, I design corresponding hardware system. The system can realized at a acquisition, showing of temperature o n-line, printing of temperature .
Keywords temperature measurement, thermocouple, single-chip microcomputer