The advantages of laser sensors are non-contact long-distance measurement, fast speed, high accuracy, large measuring range, and strong resistance to light and electrical interference. It is widely used in the measurement of physical quantities such as length, distance, vibration, speed, and azimuth. It can also be used for flaw detection and monitoring of atmospheric pollutants.
Photoelectric sensors have the characteristics of non-contact, fast response and reliable performance, so they are widely used in industrial automation devices and robots. Can be used to detect non-electrical physical quantities that directly cause changes in light quantity, such as light intensity, illumination, radiation temperature measurement, gas composition analysis, etc .; can also be used to detect other non-electric quantities that can be converted into changes in light quantity , such as part diameter, surface roughness, and strain , Displacement, vibration, speed, acceleration, and the shape and working status of objects.
Ultrasonic sensors have the characteristics of high frequency, short wavelength, and small diffraction phenomenon, especially good directivity, and can be directional propagation of rays. Ultrasonics have a great ability to penetrate liquids and solids, especially in solids that are not transparent to sunlight. Widely used in industrial non-destructive testing, thickness measurement, level (liquid level) monitoring, robot collision avoidance, various ultrasonic proximity switches, burglar alarms, and national defense, medical and other related fields.