Hoentzsch C, Niklas J R, Spaeth J M
Fachbereich Naturwissenschaften I, Experimentalphysik, Gesamthochschule Paderborn, 4790 Paderborn, W. Germany.
Rev Sci Instrum. 1978 Aug;49(8):1100. doi: 10.1063/1.1135527.
The introduction of a low-noise microwave preamplifier in a homodyne ESR spectrometer can increase the signal-to-noise ratio by more than a factor of 10 at low modulation frequencies, and makes it superior to a superheterodyne spectrometer. The performance of this new arrangement has been compared to that of a normal homodyne spectrometer.
在零差电子自旋共振光谱仪中引入低噪声微波前置放大器，在低调制频率下可将信噪比提高10倍以上，使其优于超外差光谱仪。已将这种新配置的性能与普通零差光谱仪的性能进行了比较。
