超声检测技术讲座　第二讲　超声流量计和物位计

Ultrasonic Flowmeter and Ultrasonic Detector of Material Level

介绍超声波流量计与物位计的声学原理。在超声物位测量中，介绍了频率及探头的选择，提高物位计性能的若干措施，物位计举例。

The acoustic principle of detecting flowrate and the level of material by ultrasonic is introduced. Inthe detecting the level of material by ultrasonic, the selection of the frequency and the acoustic sensor is in-troduced. Some good steps for improving function of the meter are also presented