Earticle

초록

영어

With the development of the single-chip microcomputer and integrated circuits, thermal resistance tester has gradually replaced the traditional temperature test equipment. The design uses the low power consumption MSP430 microcomputer as the core processor, heating power is produced by the switch tube FSDM0565RB, EMI filters is joined in the switch power supply in order to inhibit the influence of high frequency interference in AC power network on the equipment. Ref voltage of microcomputer generates through the transformation of voltage conversion chip AMS1117, signal input port uses voltage follower to minimize signal noise. The system circuit also joined some protection circuit, prevention of circuit false operation, etc. In the software design, measuring resistance judgment is achieved through the difference value of comparison measuring and standard resistance, which can shorten measure time and is very suitable for batch into production. Test results show that the thermal tester has a good stability and reliability, and meet the requirements of design.

목차

Abstract
 1. Introduction
 2. System Hardware
  2.1 MSP430 Single Chip Microcomputer Interface Circuit Design
  2.2 Thermistor Signal Input Circuit
  2.3 Fan and Electric Heating Control Circuit
  2.4 The LCD Display Circuit
  2.5 Switching Power Supply
 3. System Software
  3.1 The Timer Interrupt Program
  3.2 The Heating Module Settings
  3.3 The Data Processing Program
 4. Conclusions
 ACKNOWLEDGEMENTS
 References

키워드

저자

• Zenglin Zhang [ Northwest A & F University, Shaanxi,Yangling, 712100, China ]
• Xiaoqing Yu [ Northwest A & F University, Shaanxi,Yangling, 712100, China ]

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  International Journal of u- and e- Service, Science and Technology

• 간기

  격월간

• pISSN

  2005-4246

• 수록기간

  2008~2016

• 십진분류

  KDC 505 DDC 605