ultrasonic unit meaning in English

超声波装置

According to the high dispersedness and low precision of measurements when using the traditional time difference method in small diameter and low flow rates conditon , this paper brings forward a new method based on high - speed data acquisition technique . the time difference comes out accurately with high resolving ability of time by using the method and the signal processing algorithms . the developed ultrasonic detection system is composed of two ultrasonic detectors , a transmitting and receiving ultrasonic unit , a high - speed data acquisition unit and a computer
本文针对传统的时差法在小管径、低流速测量时,具有测时结果分散性大、测量精度受计数频率的影响大等不足,创造性地把高速数据采集技术应用在超声波流量、压力测量上,用信号处理算法求时差,使时差成为一个统计量,有效地克服了超声波传统时差法测量精度差、不能测量小管径、低流速流体流量的缺点,提高了时差测量的分辨率和精度。