Complex impedance measurements of calorimeters and bolometers: Correction for stray impedances

被引：32

作者：

Lindeman, Mark. A. ^{[1
]}

Barger, Kathleen A. ^{[1
]}

Brandl, Donald E. ^{[1
]}

Crowder, S. Gwynne ^{[1
]}

Rocks, Lindsay ^{[1
]}

McCammon, Dan ^{[1
]}

机构：

[1] Univ Wisconsin, Madison, WI 53706 USA

来源：

REVIEW OF SCIENTIFIC INSTRUMENTS | 2007年 / 78卷 / 04期

关键词：

D O I：

10.1063/1.2723066

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

Impedance measurements provide a useful probe of the physics of bolometers and calorimeters. We describe a method for measuring the complex impedance of these devices. In previous work, stray impedances and readout electronics of the measurement apparatus have resulted in artifacts in the impedance data. The technique allows experimenters to find an independent Thevenin or Norton equivalent circuit for each frequency. This method allows experimenters to easily isolate the device impedance from the effects of parasitic impedances and frequency dependent gains in amplifiers. (c) 2007 American Institute of Physics.

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页数：5

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