With the development of science and technology, people have higher requirements for measurement accuracy, which prompts the photoelectric sensor to update with the pace of The Times, and the main means to improve the performance of the photoelectric sensor is the application of new materials and new technologies to manufacture photoelectric components with better performance. The prototype of today's photoelectric sensor, for example, is a small metal cylindrical device. The transmitter has a calibrated lens, which focuses the light towards the receiver, and the receiver comes out with a cable to connect the device to a vacuum tube amplifier. A small incandescent lamp inside the metal cylinder acts as a light source. Due to the various defects of this sensor, it gradually disappeared in the field of measurement. To the appearance of the optical fiber, because of its various superior performance, there is a passive component of the optical fiber and the sensor, and the optical fiber is not interfered with any electromagnetic signal, and the electronic components of the sensor can be isolated from other electrical interference.
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The Times are developing, science and technology are updated, the types of photoelectric sensors are also increasing, and the application field is more and more extensive, such as recently a kind of infrared photoelectric sensor has been applied in the intelligent car, one of the intelligent car based on infrared sensors is the core of reflective infrared sensor, which uses reflective infrared sensor to design path detection module and speed monitoring module; Another kind of self-tracking car based on infrared sensor uses infrared sensor to collect data. Photoelectric sensor has the advantage that other sensors can not replace, so its development prospect is very good, and its application will be more and more extensive.
