Operating parameters and common sense of key switch

 

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First, to prevent mutual interference, a series of new photoelectric switches usually have the function of automatically preventing mutual interference, so there is no need to worry about mutual interference. However, when the series of counter-fired infrared photoelectric switches are installed side by side, the adjacent groups and mutual interference should be prevented. The most effective way to prevent this kind of interference is to set the projector and receiver crosswise, and to open the group spacing when exceeding the two groups. Of course, using different frequencies of the machine is also a good way. The effective way to prevent mutual interference of series reflective photoelectric switches is to open the interval. Moreover, the farther the detection distance is, the greater the interval should be. The specific interval should be determined according to the debugging situation. Of course, different types of machines with different working frequencies can also be used.

2. The influence of mirror angle: When the measured object is glossy or meets a smooth metal surface, its reflectivity is generally very high, and it has the function of approximating mirror surface. At this time, the angle between the projector and the detected object should be installed so that its optical axis is not perpendicular to the detected object, so as to prevent misoperation.

3. Exclude the influence of background: When using reflective diffusive projector and receiver, sometimes the photoelectric switch may not be able to detect stably because the detected object is close to the background and the background is smooth and so on. Therefore, distance-limited projectors and receivers can be used instead, or methods such as removing background objects, removing background objects, painting background objects into matte black, or trying to make background objects rough and dark can be used to eliminate them.

A new generation of switching devices manufactured by integrated circuit technology and external device technology have intelligent functions such as delay, broadening, external synchronization, anti-interference, high reliability, stable working area and self-diagnosis.