摘要
为了实现扩展超声波传感器检测角度的目的,通过对超声波传输过程以及超声波斜入射影响的分析,提出了基于传感器半功率角的传感器阵列及相关电路的设计方法,并对此设计进行了大量试验,证明此设计在不影响超声波波形的前提下,能够扩展超声波传感器的检测角度,并且易于实施。
The limited angle of sensing can restrain ultrasonic sensor＇s wide application in locating the moving objects and in guided system. Basing on analyzing the ultrasonic transmission process and the influence of offaxis ultrasonic wave, the design method for relevant circuits and the sensor array based on -3dB angle of the sensor was put forward and many experiments for it were implemented simultaneously. The experimental results show that, in the premise of no ultrasonic waveform is affected, this design can expand the detection angle of ul- trasonic sensors.
出处
《化工自动化及仪表》
CAS
北大核心
2011年第11期1327-1330,1336,共5页
Control and Instruments in Chemical Industry
