An design plan of ultrasonic sensor is presented.

介绍了一种超声波接近开关的设计方案。

The digital filter was done to the output signal of the analog ultrasonic sensor.

对模拟量超声波传感器的输出信号进行了数字滤波。

By the driving of the step motor, the ultrasonic sensor turns in immovable Angle.

超声传感器在步进电机的驱动下，以固定的角度步进转动。

The ultrasonic sensor and the working principle in the seam tracking are explained.

介绍了超声波传感器及其焊缝跟踪工作原理。

This paper introduces a automatic measurement installation using ultrasonic sensor.

介绍一种利用超声波作为传感器的检测仪器。