The use of ultrasound to measure th

The use of ultrasound to measure the ground distance in the atmosphere is a technology that has been formally applied with the development of modern electronic technology. Because ultrasonic distance measurement is a non-contact detection technology, it is not affected by the light and color of the object being measured, and it has a certain degree of adaptability to poor environments (such as dust). Therefore, it is widely used. For example: surveying and mapping topographic maps, building houses, bridges, roads, mines, oil wells, etc., the method of using ultrasonic to measure ground distance is realized by photoelectric technology. The use of ultrasonic detection is often faster and more convenient, and the calculation is simple, and it is easy to realize real-time control. The measurement accuracy can also meet the requirements of industrial practice, so it has been widely used.As a new tool, the ultrasonic sensor will have a lot of room for development. It will develop in the direction of higher positioning and high precision. In order to meet the growing social demand, there is no doubt that the future ultrasonic sensor will Integrate automation and intelligence, and integrate with other sensors to form multiple sensors. Ultrasound can be used for non-contact measurement, and its advantage is that it is not interfered by external factors such as light, electromagnetic waves, and dust. It measures the distance by calculating the transmission of ultrasonic waves between the measured object and the ultrasonic probe, and there is no damage to the measured object. In addition, the propagation speed of ultrasonic waves is independent of frequency in a wide range. These unique advantages of ultrasound have attracted more and more attention. At present, the demand for accurate ultrasonic distance measurement is also increasing, such as the precise measurement and control of oil depots and water tanks, the detection of the size of pores in objects, and the detection of internal damage to machinery. It is also widely used in machinery manufacturing, electronic metallurgy, navigation, aerospace, petrochemical, transportation and other industrial fields. In addition, it also plays an important role in materials science, medicine, biological sciences and other fields.