The daily evaporation rate under different ambient temperature was measured and the change of evaporation rate during per measuringperiod was also obtained.
According to National Criteria, the measuringperiod for gas in oil concentrations of oil filled transformer is 3 months at least, and besides, the measuring procedure is complicated.
按照国家标准，充油变压器的油中气体浓度至少是3个月测量一次，另外，测量过程十分复杂。
3
The method to measure body's inertial mass is proposed by measuringperiod of vibration with the integrated hall switch sensor, when spring oscillator is in situation of simple harmonic vibration.