کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1784760 | 1023276 | 2010 | 11 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
An approach for the performance analysis of an uncooled infrared bolometer imager
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کلمات کلیدی
TCrRTCLWRPBWRSFThermo-electricNoise equivalent temperature differenceSWRNETDOBFMEMS - فناوری میکرو الکترومکانیکیTime constant - ثابت زمانیMicro-electro-mechanical systems - سیستم های میکرو الکترومکانیکیTemperature coefficient of resistance - ضریب مقاومت دماWavelength - طول موجThermal conductance - هدایت حرارتی
موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
فیزیک اتمی و مولکولی و اپتیک
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
As an approach for analyzing an uncooled infrared bolometer imager, a method is introduced which supposes that a thermal system is built into the infrared radiation detection mechanism. In this analysis, the bi-directional radiation energy flows between two thermal elements are considered and a radiation thermal conductance between them is defined. Based on the values of the radiation thermal conductances and conventional material thermal conductance, an equivalent thermal circuit for a bolometer detector element is extracted. Calculations were carried out using software written in visual C++. The analysis shows a Noise Equivalent Temperature Difference (NETD) of 50Â mK is obtained as a typical value, assuming that no additional noise other than temperature fluctuation noise exists, and that the NETD becomes better as the system time constant built into the equivalent thermal circuit increases.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Infrared Physics & Technology - Volume 53, Issue 1, January 2010, Pages 50-60
Journal: Infrared Physics & Technology - Volume 53, Issue 1, January 2010, Pages 50-60
نویسندگان
Yoshiki Tsujino,