Title :
Design and Experiment of a High-Precision Temperature Control System
Author :
Bi Chongwei ; Yang Chuchun ; Du Bao
Author_Institution :
Naval Aeronaut. & Astronaut. Univ., Yantai, China
Abstract :
A temperature control system was designed. System structure was established by taking C8051F002 SCM as the core. The interface circuit between SCM and measurement and control computer is designed using MAX3232. Temperature-measure circuit is designed using ADI corporation´s chip AD7416. Temperature-control circuit is designed with SCM´s two 12-bit DACs. The flow chat of main program is introduced. The precision is improved by using the closed loop temperature control system composed of temperature sensor and semiconductor freezer. The control precision had been achieved to be ± 0.5¿ when it was applied to experiment for some chemical sample composition analyzing. The experiment requirement is met.
Keywords :
closed loop systems; computerised control; digital-analogue conversion; temperature control; temperature sensors; AD7416 chip; ADI corporation; C8051F002 SCM; DAC; MAX3232; closed loop high-precision temperature control system; interface circuit; semiconductor freezer; temperature sensor; temperature-measure circuit; Chemical analysis; Circuits; Communication system control; Computer interfaces; Control systems; Debugging; Extraterrestrial measurements; Temperature control; Temperature sensors; Voltage; Main program; PID control algorithm; Temperature control;
Conference_Titel :
Measuring Technology and Mechatronics Automation (ICMTMA), 2010 International Conference on
Conference_Location :
Changsha City
Print_ISBN :
978-1-4244-5001-5
Electronic_ISBN :
978-1-4244-5739-7
DOI :
10.1109/ICMTMA.2010.716
