Cooling the sample from roomtemperature (290k) to liquid nitrogen temperature (77k) decreases the voltage noise by approximately a factor of two.
将样品从室温温度(290k)降低到液氮的温度(77k),可以使得噪声电压减小大约一半。
2
Finally the amplifier's gain and noise have been measured desperately at roomtemperature and low temperature to research amplifier performance in low temperature.
最后分别在常温和低温下对放大器的增益和噪声进行了测量,研究了低温下放大器性能的变化。
3
Afforests in the indoor arrangement may play the adjustment humidity, reduces the noise, the scavenging air, regulates roomtemperature role.