Chinese Journal of Tissue Engineering Research ›› 2011, Vol. 15 ›› Issue (33): 6196-6198.doi: 10.3969/j.issn.1673-8225.2011.33.028

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Design of thermocouple temperature measurement device for physic propagation experiments

Wang Yan, Xu Hong-yu, Chen Zhao-xue   

  1. Institute of Medical Imaging Engineering, School of Medical Instrument and Food, University of Shanghai for Science and Technology, Shanghai 200093, China
  • Received:2011-02-25 Revised:2011-04-21 Online:2011-08-13 Published:2011-08-13
  • About author:Wang Yan☆, Studying for doctorate, Lecturer, Institute of Medical Imaging Engineering, School of Medical Instrument and Food, University of Shanghai for Science and Technology, Shanghai 200093, China wangyansmic@ yahoo.com.cn
  • Supported by:

    a grant from the Program for Professor of Special Appointment (Eastern Scholar) at Shanghai Institutions of Higher Learning*

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Abstract:

BACKGROUND: At present, temperature measurements focus on environmental measurement, which cannot precisely measure embryonic and juvenile development temperature
OBJECTIVE: To investigate the design of thermocouple temperature measurement device for physic propagation experiments based on chip AD595.
METHODS: AD595 was specifically designed for K-type thermocouple with built-in cold junction compensation circuit, and could effectively enlarge the heat electromotive force generated by the thermocouple during temperature measurements. Design introduced included three parts: input module, amplificatory module and display module. The signal was transmitted to AD595 by plug. After RC filtering, the signal was amplified by AD620 and then sent to the Single Chip Micyoco to drive the LED. Finally, the temperature information could be displayed by the LED.
RESULTS AND CONCLUSION: The fetation temperature could be measured accurately by the presented design of thermocouple temperature measurement device. The experimental results indicate that the temperature ranged from 20℃ to 22℃, which was propitious to the female shrimp. With stable effect and convenience for software update and improvement, it is applicable using AD595 for the design of thermocouple temperature measurement device. The measurement error and electromagnetic disturbance can also be efficiently declined.

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