An improved synchronous detector.
An improved synchronous detector.
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改进的同步检测器。
DOI：
--
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发表时间：
1949
影响因子：
1.6
通讯作者：
E. D. Redding
中科院分区：
文献类型：
--
作者：
W. C. Michels;E. D. Redding
Michels 和 Curtis 的同步放大器设计经过修改，可以最大限度地减少反馈，从而实现前置放大和高灵敏度。最终仪器的电压灵敏度为 2×105 毫米/伏，电感输入阻抗为 2×106 欧姆。频率选择性足够敏锐，因此带宽约为 0.25 c.p.s。 800 c.p.s.讨论了同步检波器的优点和缺点。
The synchronous amplifier design of Michels and Curtis has been modified to minimize feedback and so to allow preamplification and high sensitivity. The resulting instrument has a voltage sensitivity of 2×105 mm/volt with an inductive input impedance of 2×106 ohms. The frequency selectivity is sufficiently sharp so that the band width is of the order of 0.25 c.p.s. at 800 c.p.s. Advantages and disadvantages of the synchronous detector are discussed.