Cooling the sample from room temperature (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
Vibration isolating grommets are standard for every hard drive and a complex airflow cooling design to maximise airflow and cooling effects with minimum noise.