Title: A Passive Temperature Measuring System for Radiance and Temperature Measurement in the Meantime
Abstract: A practical temperature real-time measuring system using PIN photodiode as a pyroelectric detector is proposed.The instrument consists of three parts: optical receiving system,signal amplifying and controlling system and display system.In terms of the atmospheric transmittance spectra for radiation and the relationship among the relative temperature measurement sensitivity,the temperature resolving power and the working wavelength,the working wavelength of this instrument is determined.According to the effects on temperature measuring uncertainty by working wavelength bandwidths of the instrument,the bandwidth of the working wavelength is achieved.The inaccuracy of temperature measurement and the radiance is briefly analyzed on the basis of the uncertainty of P_1 and P_2.Experimental results show that temperature measuring accuracy is less than 0.3% at λ=0.80 μm and Δλ=20 nm over the range from 600 ℃ to 2 500 ℃.
Publication Year: 2006
Publication Date: 2006-01-01
Language: en
Type: article
Access and Citation
AI Researcher Chatbot
Get quick answers to your questions about the article from our AI researcher chatbot