Ultrasonic sensors and sonar sensor is a sensor that you

Sonar sensors directly detect and identify underwater objects and underwater contours , sonar sensor sends an acoustic signal , when faced with an object will reflect back and wave reflection time basis to calculate its distance and position of the ultrasonic Crank Shaft Position Sensoris the use of ultrasound characteristics developed from the sensors. Ultrasound is a mechanical vibration frequency higher than the acoustic waves from the transducer excitation voltage wafer vibration occurs , and it has high frequency, wave length, the diffraction of small, especially good directivity , to be directed rays propagation characteristics. Sonar Coolant Temperature Sensor are used to detect biological , such as what is used to detect underwater creatures, biological body much like. Often ask you heard a device for detecting monsters that sonar sensors. Ultrasound for liquids, solids penetration ability is high, particularly in the sun opaque solid , which penetrate the depth of tens of meters . Ultrasonic encounter impurities or sub- interface will produce significant reflex reflector formed into echo , hit moving objects can produce Doppler effect. Therefore, ultrasonic testing is widely used in industrial, defense , biomedical and other aspects . Ultrasonic sensors are developed from the use of ultrasonic sensor characteristics . In industry, the typical application of ultrasonic NDT and metal ultrasonic thickness two kinds . Ultrasonic sensors in medical applications primarily to diagnose disease , it has become an indispensable clinical diagnostic methods . Ultrasonic position sensing sensors can resolve the difficulties encountered , any material capable of detecting the target object . These products can be in a dry, dusty environment of normal operation. Target object presence detection , accurate distance measurements or traces. In other detection techniques in times of difficulties , and more able to demonstrate the superiority of the product , for example, when the object to be detected as follows : clean or luminous object , mist or gas filled objects , spraying of liquids.