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[5] Dexter company, Infrared Thermopile Detectors, http://www.dexterresearch.com/.

[6] JonDeTech, Surface mount plastic thermopiles, http://jondetech.com/main.html.

[7] Cai Xiaowu, Ma Bin, Liang Pingzhi. Infrared Technology, 2005, 27: 34.

[8] Perkin Elmer Company: TPS434 datasheet, http://optoelectronics.perkinelmer.com/content/Datasheets/DTS_TPS434R3.pdf.

[9] NI company. LI5640 User’s Manual.