Seven matched bolometers for millimeter wave observations
Seven matched bolometers for millimeter wave observations
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用于毫米波观测的七个匹配的辐射热测量计
DOI：
10.1007/bf02084285
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发表时间：
1993
期刊：
影响因子：
--
通讯作者：
E. Haller
中科院分区：
文献类型：
--
作者：
N. Kuno;H. Matsuo;Y. Mizumoto;A. Lange;J. Beeman;E. Haller
我们已经制造了一个毫米波观测系统，使用一组辐射测量探测器。系统的性能在很大程度上取决于从每个测热计获得相同的性能。除了七个要素中的一个之外，我们在响应度上实现了小于4%的方差。辐射背景负载为30pW时，测辐射热计的电NEP为1.3×10−16W/√Hz。我们使用交流桥读出电路来显著提高阵列的稳定性，并表明可以在没有机械波束开关的情况下进行观测。辐射热计阵列目前在Nobeyama 45米望远镜上用于150GHz的观测。
We have fabricated a millimeter wave observation system using an array of bolometric detectors. The performance of the system depends largely on obtaining identical performance from each bolometer. We achieved a variance in the responsivity of less than 4% except for one of the seven elements. The bolometers had an electrical NEP of 1.3×10−16W/√Hz under radiation background loading of 30pW. We used an AC bridge readout circuit to significantly improve the stability of the array and showed that observations can be done without a mechanical beam switch. The bolometer array is now in use on the Nobeyama 45-m telescope for 150GHz observations.