Low-frequency digital lock-in amplifier
暂无分享，去创建一个
A digital lock‐in amplifier which simultaneously measures in phase and in quadrature components at a reference frequency and at twice this frequency is described. It is drift free, insensitive to harmonics, has a very high gain stability (25 ppm/K), and operates up to 1250 Hz with no limitations on the low‐frequency side.
[1] S Cova,et al. Versatile digital lock-in detection technique: application to spectrofluorometry and other fields. , 1979, The Review of scientific instruments.
[2] D. K. Wagner,et al. The radio-frequency size effect: A tool for the investigation of conduction electron scattering in metals , 1978 .