正弦交流电流 meaning in English

simple sinusoidal alternating current

Then , current perception threshold system is discussed in details including three main aspects : physiological background , theory of udtr and forced choice method and experiment basis providing the evidence for us to substitute heating , cooling and vibration signals with 5hz , 250hz , 2000hz sine current signals , respectively . the most important part of this thesis is the design of the system
然后详细论述了定量电流感觉测量系统的理论基础，包括三个方面：生理学基础；阈值检出算法( udtr和forcedchoice方法)的理论基础；实验基础，即大量实验表明， 5hz ， 250hz和2000hz的正弦交流电流刺激分别可以代替加热，致冷和振动信号。