1, ranging and positioning: Ultrasonic radar can measure the distance between objects and sensors, and make accurate positioning in industrial automation, unmanned driving and other fields.
2. Non-destructive testing: Ultrasonic radar can detect the internal structure and defects of objects, such as cracks and defects of pipes and metal components, and is often used for industrial quality control and maintenance.
3. Underwater detection: Because the propagation of ultrasonic waves in water is unimpeded, ultrasonic radar can be used for underwater detection, such as marine survey and seabed resource development.
4. Medical imaging: Ultrasonic waves can penetrate human tissues and reflect back, so ultrasonic radar can be used for medical imaging, such as ultrasonic scanning and fetal monitoring.
5. Animal detection: Ultrasonic radar can be used for animal detection, such as observing the migration behavior of birds and mammals in the wild and insects lurking in the dark.
History of ultrasound development in China:
In China, the field of ultrasound therapy started late, and only a few hospitals carried out ultrasound therapy in the early 1950s. From 65438 to 0950, the ultrasonic therapeutic machine with the wavelength of 430μm was first used in Beijing to treat various diseases, and it was gradually popularized in 1950s, and it was made in China. The published literature report began at 1957. In the 1970s, various types of ultrasonic therapeutic instruments appeared in China, and ultrasonic therapy was popularized in major hospitals all over the country.
Over the past 40 years, major hospitals in China have accumulated a considerable amount of information and rich clinical experience. Especially in the early 1980s, ultrasonic extracorporeal mechanical wave lithotripsy (ESWL) and ultrasonic surgery appeared, which was a major breakthrough in the treatment history of lithiasis. Now it has been popularized and applied internationally. High intensity focused ultrasound noninvasive surgery makes ultrasound therapy occupy an important position in contemporary medical technology. In 2 1 century, focused ultrasound surgery (HIFU) is regarded as the latest technology for treating tumors in 2 1 century.