Main type: 1, laser ranging sensor.
Laser ranging sensor is a common ranging sensor, which has the advantages of high precision, high speed and wide ranging range, so it is widely used in industrial automation, robotics, driverless and other fields.
In practical application, many factors such as ranging range, accuracy, speed, environmental adaptability, cost and so on need to be considered in choosing the best laser ranging sensor scheme. For the application scene that needs to measure long distance, long-distance laser ranging sensor can be selected; For scenes requiring high-precision measurement, high-precision laser ranging sensors can be selected.
For the scene that needs rapid measurement, high-speed laser ranging sensor can be selected. Also consider the environmental adaptability of the sensor, such as whether it can work normally in harsh environments such as high temperature, low temperature and humidity. Cost is also one of the important factors in choosing laser ranging sensor, which needs to be selected according to actual demand and budget.
2. Ultrasonic ranging sensor
Ultrasonic ranging sensor is a commonly used ranging sensor, and its principle is to measure the distance by using the propagation speed of ultrasonic waves in the air. In practical application, many factors need to be considered in choosing the best scheme, such as measurement range, accuracy, response speed, environmental adaptability and so on.
The measuring range needs to be determined according to the actual demand. The measuring range of ultrasonic ranging sensors is generally between several centimeters and several meters, and the measuring range of different types of sensors is different, so it needs to be selected according to specific application scenarios.
Accuracy is one of the important factors in choosing ultrasonic ranging sensor. Different types of sensors have different accuracy, generally in millimeter level, and need to be selected according to actual application requirements.
Response speed is also one of the important factors in choosing ultrasonic ranging sensor. Different types of sensors have different response speeds, generally ranging from tens of milliseconds to hundreds of milliseconds, which need to be selected according to actual application requirements.
The environmental adaptability of ultrasonic ranging sensor also needs to be considered, such as whether the sensor can adapt to high temperature, low temperature, humidity and other environments, and whether it can resist interference.
To sum up, choosing the best ultrasonic ranging sensor needs to comprehensively consider many factors, and choose the appropriate model and specifications according to the actual application requirements. At the same time, with the continuous development of technology, new ultrasonic ranging sensors are constantly emerging, and it is necessary to keep abreast of the latest technical development trends.
3. Millimeter wave radar ranging sensor
Millimeter-wave radar ranging sensor is a high-precision and high-reliability ranging sensor. Its working principle is to measure the distance by the reflection between the millimeter wave signal and the target object. Compared with other types of ranging sensors, millimeter-wave radar ranging sensors have higher measurement accuracy and stronger anti-interference ability, and are suitable for ranging applications in various complex environments.
When choosing the best scheme in practical application, many factors such as measurement accuracy, measurement range, anti-interference ability, cost and so on need to be considered. Millimeter-wave radar ranging sensor has excellent measurement accuracy and anti-interference ability, but its relatively high cost may limit its application range.
Therefore, when selecting ranging sensors, it is necessary to comprehensively consider the requirements of specific application scenarios and choose the most suitable scheme. At the same time, with the continuous development of technology, millimeter-wave radar ranging sensors are constantly optimized and upgraded, and there will be more application scenarios and higher performance in the future.
4, photoelectric ranging sensor
The photoelectric ranging sensor is a common ranging sensor, and its principle is to measure the distance between the object and the sensor by photoelectric effect. In practical application, many factors need to be considered in choosing the best scheme, such as measurement range, accuracy, response speed, environmental adaptability and so on.
For the application scenes that need to measure short distances, the laser ranging sensor based on triangulation principle can be selected, which has high precision and fast response speed, but the measurement range is small. For the scene that needs to measure a long distance, the laser ranging sensor based on the principle of time of flight can be selected, which has a large measuring range, but its accuracy and response speed are relatively low.
You can also choose an infrared ranging sensor based on infrared principle, which is suitable for indoor environment ranging, but it is greatly disturbed by the environment. In addition, ultrasonic ranging sensor based on acoustic wave principle and radar ranging sensor based on electromagnetic wave principle are common ranging sensor types.
5. Infrared distance sensor
The infrared distance sensor can measure the distance between the target and the sensor by emitting and receiving infrared rays. The sensor can measure in the range of 10 cm to 80 m, and has the characteristics of high precision and low power consumption. However, under the interference of strong light or other objects, the accuracy will be affected.
Purchase points 1, ranging range and accuracy
Different types of sensors are different in this respect. Ultrasonic sensor is suitable for short and medium distance measurement with low accuracy. Infrared sensor is suitable for short and medium distance measurement with high accuracy. Laser sensor is suitable for high-precision measurement of medium and long distance. Millimeter wave radar is suitable for long-distance and high-precision measurement. Optical sensors are suitable for high-precision short-distance measurement.
2, measuring environmental characteristics
Different types of sensors have different adaptability to the environment. Ultrasonic sensors have a great impact on the environment and are easily reflected and interfered by sound waves. Infrared sensor has great influence on ambient light and temperature; Laser sensors have high requirements on the environment, so it is necessary to ensure that there are no obstacles and light interference in the measurement area; Millimeter-wave radar has good environmental adaptability, but it is expensive. Optical sensors have high requirements on the environment, so it is necessary to ensure that there is no interference from dust and light in the measurement area.
3. Cost and practical application requirements
Different types of sensors have different prices and power consumption, so they need to be selected according to the actual application requirements and budget. At the same time, it is also necessary to consider the installation and maintenance costs of the sensor and whether it needs to be integrated with other equipment.
Therefore, when choosing the best scheme, it is necessary to comprehensively consider various factors according to the requirements and limitations of practical application scenarios and select the most suitable ranging sensor type.