Detection method of ultrasonic sensor
Using high-frequency acoustic wave to detect the position and distance of objects, ultrasonic sensors can generally work when other sensors are insufficient.
When other types of sensors are insufficient,ultrasonic sensor It can be operated by detecting the position and distance of an object using high-frequency sound waves. They work like echo locations in bats or dolphins. These sensors emit sound waves that humans can't hear, and then detect when the sound waves bounce back after hitting an object. Using sound, ultrasonic sensors can detect objects that frustrate other types of sensors and work intelligently in some special cases.
Five classic examples ultrasonic sensor Examples of applications.
1. Ultrasonic target test in assisted driving.
Many large car manufacturers and technology companies are testing fully automatic driving autopilot. Nissan and General Motors say they will try to run autopilot on the road by 2020. These two kinds of automatic driving vehicles (combined with driver assisted technology for human powered vehicles) widely use sensors to monitor roads and surrounding environment. For example,ultrasonic sensor It can detect cars in adjacent lanes for blind spot detection, and remind the driver when there is a dead corner.
2. Ultrasonic distance detection.
Ultrasonic sensor The sensor can also prevent collision by detecting when the car or other objects in front of and behind the car are approaching dangerously. For example, when parking, sensors can monitor the distance between the car and the wall or other vehicles to remind you to stop. This is also applicable to traffic conditions, because even if both objects are moving, the sensor can work normally.
3. Ultrasonic diameter detection.
ultrasonic sensor Developing into factories far away from urban roads can help students maintain the stable operation of enterprise automatic production lines. Using traditional printing facilities, such as those for printing newspaper or magazine pages, the paper usually starts from a roll, and the diameter of the paper will decrease with the use of the paper. Using ultrasonic sensors, device management can automatically analyze and detect when the volume is used up, so that they can be fully prepared to use the new volume without losing productivity. Ultrasonic sensors can even be learned and used with sound-absorbing structural materials, such as rubber or filler.
4. Ultrasonic sag detection.
5. Ultrasonic level test.
This is another example of process automation in the food production industry. The ultrasonic sensor is hygienic and completely packaged in stainless steel to maintain good performance, even when handling food. For example, it can help dairy factories continuously produce cheese instead of mass producing cheese, but monitor milk and lactose levels in curds. In this way, it knows when more ingredients will be provided when the cheese curd is continuously removed at the other end.
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