Low noise thermistor readout for wideband room temperature infrared detectors

被引：0
|
作者：
Ryger, Ivan [1 ]
Harber, Dave [3 ]
Stephens, Michelle [1 ]
White, Malcolm [1 ]
Tomlin, Nathan [1 ]
Spidell, Matthew [1 ]
Lobotka, Peter [2 ]
Lehman, John [1 ]
机构：
[1] NIST, Boulder, CO 80305 USA
[2] Slovak Acad Sci, Inst Elect Engn, Bratislava 84104, Slovakia
[3] Atmospher & Space Phys Lab, Boulder, CO 80303 USA
来源：
2016 41ST INTERNATIONAL CONFERENCE ON INFRARED, MILLIMETER, AND TERAHERTZ WAVES (IRMMW-THZ) | 2016年
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中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
An absolute electrical substitution radiometer is a way to ensure highly accurate and stable measurement of optical power in a wide range of optical wavelengths. Its sensitivity is mainly determined by the temperature stability of the equithermal bath and the electrical noise of the temperature readout. In this article we investigate the noise background of different preamplifiers in combination with different types of temperature sensors. The 1/f noise of temperature sensors and Johnson thermal noise of preamplifiers were chosen as a figure of merit. The results from our measurements are discussed.
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