WANG Fei-yue（王飞跃）, ZHANG Zhi-jie（张志杰）, WANG Wen-lian（王文廉）
(College of Information and Communication Engineering, North University of China, Taiyuan 030051, China)
Abstract：Aiming at high requirements of temperature measurement system in high temperature, high pressure, highly corrosive and other special environments, a temperature acquisition system based on field-programmable gate array (FPGA) which is the controller of the system is designed. Also a Flash memory is used as the memory and an erosion thermocouple is used as sensor of the system. Compared with the traditional system using complex programmable logic device (CPLD) and microcontroller unit (MCU) as the main body, this system has some advantages, such as short response time, small volume, no loss of data once power is off, high precision, stability and reliability. And the sensor of the system can be reused. In this paper, boiling water experiment is used to verify accuracy of the system. The millisecond level signal from firecrackers is for verifying the stability and fast response characteristics of the system. The results of experiment indicate that the temperature measurement system is more suitable for the field of explosion and other environments which have high requirements for the system.
Key words： Tungsten-Rhenium thermocouple; field-programmable gate array (FPGA); Flash memory
CLD number： TP274+.2 Document code： A
Article ID： 1674-8042(2013)01-0014-05 doi： 10.3969/j.issn.1674-8042.2013.01.004
References
[1] Monica A C. Temperature measurement and acquisition system with smart temperature sensor. Serie Electrotechnique et Energetique, 2004, 49(1): 143-150.
[2] Grempler K. An improved airborne ocean temperature acquisition display and ananlysis system. Johns Hopkins Apl Technical Digest, 1993, 14(3): 253-258.
[3] LI Gong-qi, LI Dong-guang. Based on the high-speed CPLD the missile test system storage key techniques. Journal of theArrows and Guidance, 2007, 27(1): 360-362.
[4] KONG Wen-chuang, WANG Dai-hua, ZHANG Zhi-jie. A new temperature collection system. Nuclear Electronics & Detection Technology, 2011, 31(1): 73-78.
[5] REN Quan-hui, MA Lei. Design and implementation of temperature acquisition system based on FPGA and AT89C2051. Coal Technology, 2011, 12: 48-50.
[6] WU Lei, SHEN Shi-tao, GUO Chao-ping, et al. Design of embedded temperature acquisition system based on USB and FPGA. Journal of Computer Applications, 2011, 31(2): 222-224.
[7] ZU Yi-kang. Multiplex temperature collection system based on type-k thermocouple and MAX6675. Journal of Jiangxi University of Science and Technology, 2007, 4: 25-27.
[8] PAN Xue-tao, LI Lang, MENG Qing-yang, et al. Design of thermocouple temperature measurement system based on virtual instruments and USB technology. Computer Measurement & Control, 2011, 10: 2340-2343.
[9] TAO Wei-wei, LIU Ying-jie, XI Zhen-hua, et al. Wireless building temperature gathering system based on CC1110. Microcomputer & Its Applications, 2012, 1: 19-22.
[10] CHEN Ming-bao. Research on hardware performance for thermocouple temperature measurement modules. Automation & Instrumentation, 2012, 6: 16-20.
[11] ZHEN Guo-yong, WANG Xiang-ling, HOU Zhuo. Signal processing circuit of temperature measurement based on thermocouple. Nuclear Electronics & Detection Technology, 2012, 32(3): 269-271.
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