Which is better, ultrasonic sensor or infrared sensor?

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Which is better, ultrasonic sensor or infrared sensor? [Copy link]

With the development of science and technology such as electronic computers, production automation, modern information, military, transportation, chemistry, environmental protection, energy, marine development, remote sensing, aerospace, etc., the demand for sensors is increasing day by day, and its application areas have penetrated into various sectors of the national economy and people's daily cultural life. Selecting sensors in these applications is challenging for any project. The performance of the system depends largely on the reliability of the sensor and other components of the application. Let's take a look at which is better, ultrasonic sensor or infrared sensor?

In order to determine the sensor suitable for the project application, sensor selection needs to consider some factors.

1, Accuracy - The closeness of the reading to the true distance. 2. Resolution - The smallest reading or change in reading that can be reported. 3. Accuracy - The smallest reading that can be read repeatedly and reliably. 4. Ultrasonic Sensors vs. Infrared Sensors How do they work?

How Ultrasonic Sensors Work

Ultrasonic sensors work by reflecting sound waves, which are used to measure distance. A sensor can detect other people nearbyAn ultrasonic sensor sends out sound waves, which are reflected back if there is an object in front of it. The sensor detects these waves and measures the time between sending and receiving these sound waves. The distance is then estimated from the time interval between the sensor and the object.

Ultrasonic sensors are largely insensitive to obstructions such as light, dust, smoke, mist, steam, lint.

Ultrasonic sensors are not as good as infrared when it comes to defining the edges of an area. Ultrasonic sensors are used for level measurement, object detection, distance measurement, anti-collision detection, and pallet detection, among others. Ultrasonic sensors are used to improve operational efficiency and provide additional safety in manufacturing facilities. This is one of the major factors driving the global demand for ultrasonic sensors. Working Principle of Infrared Sensors Working Principle of Infrared Sensors Infrared sensors work on the basis of reflecting light waves. Infrared light is reflected from an object or emitted from an infrared remote control or beacon. Infrared sensors are also used to measure distance or proximity. The reflected light is detected and then an estimate of the distance between the sensor and the object is calculated. 375861 Infrared sensors cannot work in the dark whereas ultrasonic sensors can work in dark environments. Infrared can detect brighter surfaces more easily than dark surfaces because the sensor will not detect darker surfaces. Infrared sensor values often fluctuate under changing lighting conditions. When objects pass through this range, the light waves detect these objects and reflect their presence back to the sensor. Their wavelengths are smaller than those of microwaves. While they are able to detect motion, they can also measure the heat emitted by objects. In summary, the editor of Gongcai.com believes that choosing a sensor depends entirely on your application. There are many limitations of infrared sensors, such as the inability to use them in sunlight due to interference. It can make outdoor applications or dark indoor applications very difficult. Ultrasonic sensors work using sound waves and the detection of obstacles is not affected by a number of factors. If reliability is an important factor in your sensor selection, ultrasonic sensors are more reliable than infrared sensors. If you are willing to compromise reliability for cost, infrared sensors are a good choice for your application.

jpf

Each has its own advantages and disadvantages

chunyang

There is no question of which one is better, only whether it is suitable for a specific application. Different applications may require different suitable choices, and it is meaningless to talk about good or bad without considering the application.

懒猫爱飞

Yes, what the above person said is right, it is related to the actual application scenario.

star_66666

It depends on the demand.

空中利剑

Just take a look, there's nothing else to it!