Views: 3 Author: Site Editor Publish Time: 2020-06-02 Origin: Site
With the development of electronic computers, production automation, modern information, military, transportation, chemistry, environmental protection, energy, marine development, remote sensing, aerospace and other scientific technologies, the demand for sensors is increasing day by day. Various departments and people's daily cultural life. Choosing piezoelectric ultrasonic transducer in these applications is challenging for any project. The performance of the system depends largely on the reliability of the ultrasonic sensors and other components of the application. Let's take a look at which one is better, ultrasonic sensor or infrared sensor?
In order to determine the suitable sensor for the project application, the sensor selection needs to consider some factors.
3. Accuracy-The smallest reading that can be read repeatedly and reliably.
How do ultrasonic sensors and infrared sensors work?
Working principle of ultrasonic sensor
The working principle of an ultrasonic sensor is to reflect sound waves and to measure distance. A ultrasonic sensor can detect the sound waves emitted by other nearby ultrasonic sensors. If there are objects in front of them, they will be reflected back. The sensor detects these waves and measures the time between sending and receiving these sound waves. The distance is then estimated by the time interval between the sensor and the object.
Ultrasound is not as good as infrared when defining the edge of the area. Ultrasonic sensors are used for liquid level measurement, object detection, distance measurement, anti-collision detection and tray detection. ultrasonic depth measurement transducer is used to increase operational efficiency and provide additional safety in manufacturing facilities. This is one of the main factors are driving the global demand for ultrasonic sensors.
How infrared sensors work
The working principle of infrared sensors is to reflect light waves. Infrared light is reflected from objects or emitted from infrared remote controls or beacons. Infrared sensors are also used to measure distance or proximity. Detect the reflected light and then calculate the distance estimate between the sensor and the object.
Infrared sensors cannot work in the dark and ultrasonic transducer sensor can work in a dark environment. Infrared is easier to detect brighter surfaces than dark surfaces because the sensor does not detect darker surfaces. Infrared sensor values usually fluctuate under changing lighting conditions. When objects pass within this range, light waves detect these objects and reflect their presence back to the sensor. Their wavelength is smaller than that of microwaves. Although they can detect motion, they can also measure the heat dissipation of objects.
