Title page for etd-0809106-141520


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URN etd-0809106-141520
Author Shih-min Hung
Author's Email Address No Public.
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Department Mechanical and Electro-Mechanical Engineering
Year 2005
Semester 2
Degree Master
Type of Document
Language zh-TW.Big5 Chinese
Title Setting up and Application of Infrared Temperature-Sensing System
Date of Defense 2006-07-20
Page Count 60
Keyword
  • Infrared pyrometry
  • Laser welding
  • temperature measurement
  • Abstract The study aims to develop an infrared temperature-sensing system  by applying to thermal radiation theory. The system consists of an optic unit, a photodetector, and an electronic unit. This system detects thermal radiation at 1310 nm wavelength, the temperature range of the system is 600~4000℃, rise time 2μs, spatial resolution 400μm. The calibration was performed in the temperature low at 1200℃ by using a K-type thermocouple that can gain between temperature and output voltage relations, but beyond the temperature 1200℃ applying to Planck’s law as calculate to predict. In the calibrated temperature range, the measurement error is ±80℃ for the low temperatures and ±20℃ for the high temperatures. The system was used to measure temperature variation during Nd:YAG pulse laser welding process. Experiments ware performed with stainless steel plates as specimen radiation by a laser pulse of 7ms duration time and various energy in the rang of 1245~5313mJ. The experimental results show the feasibility of the infrared temperature-sensing system in application of Nd:YAG pulse laser welding process.
    Advisory Committee
  • Wood-hi Cheng - chair
  • Jao-hwa Kuang - co-chair
  • Wen-mei Yang - co-chair
  • Ming-huei Yu - advisor
  • Files
  • etd-0809106-141520.pdf
  • indicate not accessible
    Date of Submission 2006-08-09

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