Sonar sensors and ultrasonic sensors are two kinds of detection devices that are often heard. Many people think that these two types are sensors. What is the difference between these two types of sensors?
The sonar sensor directly detects and recognizes the outlines of the objects and the bottom of the water. The sonar sensor emits a sound wave signal, and when it encounters the object, it will reflect back and calculate its distance and position according to the reflection time and the wave type. Ultrasound is a kind of mechanical wave whose vibration frequency is higher than that of sound waves. It is generated by transducers vibrating under the excitation of voltage. It has high frequency, short wavelength, and small diffraction phenomenon, especially good directionality, which can become ray and orientation. Dissemination and other characteristics. The sonar sensor is mainly used for detecting organisms, for example, what kind of organisms are detected on the bottom of water, and how large the organism is. The device used to detect the monsters that you often hear is the sonar sensor.
Ultrasonic penetration of liquids, solids is very large, especially in the opaque solid, it can penetrate depths of tens of meters. Ultrasonic waves that encounter impurities or interfaces can produce significant reflections and reflect back into echoes, and Doppler effects can occur when moving objects are encountered. Therefore, ultrasonic testing is widely used in industrial, national defense, and biomedical fields. Ultrasonic sensors are sensors developed using the characteristics of ultrasound. In industry, the typical application of ultrasonic is two kinds of non-destructive flaw detection and ultrasonic thickness measurement of metal. The application of ultrasonic sensors in medicine is mainly to diagnose diseases. It has become an indispensable diagnostic method in clinical medicine. Note 1: Do not use sensors [2] outdoors or above rated temperature to ensure reliability and long life. 2: Because the ultrasonic sensor uses air as the transmission medium, when the local temperature is different, reflection and refraction at the boundary may cause malfunctions, and the distance detected during wind blowing will also change. Therefore, sensors should not be used near devices such as forced draft fans. 3: The air jet ejected by the air jet has a variety of frequencies and therefore affects the sensor and should not be used near the sensor. 4: Drops of water on the sensor surface shorten the detection distance. 5: Materials such as fine powder and cotton yarn cannot be detected when absorbing sound (reflective sensor). 6: The sensor cannot be used in a vacuum area or an explosion-proof area. 7: Do not use the sensor in areas with steam; the atmosphere in this area is not uniform. Temperature gradients will occur, which will lead to measurement errors.
The sonar sensor directly detects and recognizes the outlines of the objects and the bottom of the water. The sonar sensor emits a sound wave signal, and when it encounters the object, it will reflect back and calculate its distance and position according to the reflection time and the wave type. Ultrasound is a kind of mechanical wave whose vibration frequency is higher than that of sound waves. It is generated by transducers vibrating under the excitation of voltage. It has high frequency, short wavelength, and small diffraction phenomenon, especially good directionality, which can become ray and orientation. Dissemination and other characteristics. The sonar sensor is mainly used for detecting organisms, for example, what kind of organisms are detected on the bottom of water, and how large the organism is. The device used to detect the monsters that you often hear is the sonar sensor.
Ultrasonic penetration of liquids, solids is very large, especially in the opaque solid, it can penetrate depths of tens of meters. Ultrasonic waves that encounter impurities or interfaces can produce significant reflections and reflect back into echoes, and Doppler effects can occur when moving objects are encountered. Therefore, ultrasonic testing is widely used in industrial, national defense, and biomedical fields. Ultrasonic sensors are sensors developed using the characteristics of ultrasound. In industry, the typical application of ultrasonic is two kinds of non-destructive flaw detection and ultrasonic thickness measurement of metal. The application of ultrasonic sensors in medicine is mainly to diagnose diseases. It has become an indispensable diagnostic method in clinical medicine. Note 1: Do not use sensors [2] outdoors or above rated temperature to ensure reliability and long life. 2: Because the ultrasonic sensor uses air as the transmission medium, when the local temperature is different, reflection and refraction at the boundary may cause malfunctions, and the distance detected during wind blowing will also change. Therefore, sensors should not be used near devices such as forced draft fans. 3: The air jet ejected by the air jet has a variety of frequencies and therefore affects the sensor and should not be used near the sensor. 4: Drops of water on the sensor surface shorten the detection distance. 5: Materials such as fine powder and cotton yarn cannot be detected when absorbing sound (reflective sensor). 6: The sensor cannot be used in a vacuum area or an explosion-proof area. 7: Do not use the sensor in areas with steam; the atmosphere in this area is not uniform. Temperature gradients will occur, which will lead to measurement errors.
Commonly used location
piping nerar head and eye level
piping near walkways and traffic areas,including areas with overhead piping.
Unloading/loading areas,including docks and terminals.
Piiping on discharge side of pumps.
Piping in tight,confined spaces.
piping conveying flammables near hot surfaces and instruments panels
flange shield
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