Besides there is also some alternatives such as an inductance conversion using differential transformer and space curve deformeter and variable resistance pressure transmitter.
除此之外还有利用差动变压器和扰曲线应变计的电感变换方式，以及变电阻式压力变送器。
2
The main flux of asynchronous motor varies with the power voltage and the para-meter of excited inductance becomes a variable.