采用了时间增益补偿技术和峰值时间检测技术，可正确检测超声波回波的到达时间。
Using the time-gain compensation and peak time detecting technique, the arrival time of ultrasonic echo can be correctly detected.
采用了时间增益补偿技术和峰值时间检测技术，可正确检测超声波回波的到达时间。
Using the time-gain compensation technique to compensate for ultrasonic waves weaking when transmitting in the air, and reduce the fluctuation of echo signal.
采用时间增益补偿技术，补偿超声波在空气中的衰减，减少回波信号的起伏；由有源全波整流电路和微分电路等组成峰值时间检测电路，可正确检测回波的峰值到达时间。
The peak time detecting circuit which is composed of full-wave rectification circuit and differential circuit can detect the reach time of echo signal accurately.
本方法通过观察水模样品的磁共振信号的变化来调正补偿电路的时间常数和增益。
The method adjusts time constant and gain of compensation-circuits with determining change of magnetic resonance signal of phantom.
本方法通过观察水模样品的磁共振信号的变化来调正补偿电路的时间常数和增益。
The method adjusts time constant and gain of compensation-circuits with determining change of magnetic resonance signal of phantom.
应用推荐