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Technology Application Of Ultrasonic Sensor
- Jul 06, 2017 -

The application of ultrasonic sensor technology in different aspects of production practice, and medical application is one of the most important applications, and the application of ultrasonic sensing technology is illustrated by the example of medicine. The application of ultrasound in medicine is mainly to diagnose diseases, which has become an indispensable diagnostic method in clinical medicine. The advantages of ultrasonic diagnosis are: No pain, no damage, simple method, clear image and high accuracy of diagnosis. Therefore, it is easy to popularize and is welcomed by medical workers and patients. Ultrasonic diagnosis can be based on different medical principles, which are representative of a so-called type a method. This method is the use of ultrasonic reflection. When the ultrasonic waves in the human body to meet the two-layer acoustic impedance of the different media interface is that the interface produces reflection echoes. Each time a reflector is encountered, the Echo is displayed on the screen of the oscilloscope, and the impedance difference of the two interface determines the amplitude of the echo.

In industry, the typical application of ultrasonic is the nondestructive testing of metal and ultrasonic thickness measurement of two kinds. In the past, many technologies have been hampered by the inability to detect internal bodies of objects, and the advent of ultrasonic sensing technology has changed that. Of course, more ultrasonic sensors are fixed on different devices, "silently" to detect the signals people need. In the future application, ultrasound will be combined with information technology, new materials technology, will appear more intelligent, highly sensitive ultrasonic sensors.

Remote Switch Ultrasonic remote control switch can be controlled home appliances and lighting. Using a small ultrasonic sensor (Φ12-Φ16), operating frequency in 40KHZ, remote control distance of about 10 meters. The transmitter of the remote control, which is composed of 555 time base circuit oscillator, adjust the 10kω potentiometer, so that the oscillation frequency is 40KHZ, the sensor is connected to the ③ foot, when the button is connected, send out the ultrasonic, receive the circuit.