The difference between laser sensor and photoelectric sensor

• time：2023-10-12 15:33:58
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The main differences between laser sensors and photoelectric sensors are their working principle, light source, application areas and cost.

1. Working principle: Both laser sensors and photoelectric sensors work by converting changes in light intensity, but they work in slightly different ways. The laser sensor first emits a laser pulse at the target with a laser emitting diode. The laser is scattered in all directions by the target reflection. Part of the scattered light returns to the sensor receiver, is imaged to the avalanche photodiode, and is converted into a corresponding electrical signal. The photoelectric sensor emits light points through other light sources (such as red light and infrared light), receives the reflected light, and then converts it into an electrical signal.

2. Light source: Laser sensors use laser technology to measure the sensor, and its light source is laser. The light source of the photoelectric sensor can see red light and infrared light.

3. Application fields: Laser sensors are mainly used for functions such as object detection, positioning, counting, concave and convex, front and back, etc., and are widely used in packaging, electronics and other industries. Photoelectric sensors are used in many fields, such as position detection, liquid level control, product counting, width judgment, speed detection, fixed length shearing, hole identification, signal delay, automatic door sensing, color mark detection, etc.

4. Cost: Laser sensors and photoelectric sensors are both photoelectric sensors, but due to different light sources, the manufacturing costs are also different. The manufacturing cost of laser sensors is higher, and the manufacturing cost of photoelectric sensors is lower.

In general, the main differences between laser sensors and photoelectric sensors are their working principle, light source, application area and cost. Laser sensors use lasers as light sources and are mainly used to accurately measure distances and various characteristics of objects; photoelectric sensors use visible light and infrared rays as light sources and are mainly used in various industrial production and detection.