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beta sensorsThe Miniature Photoelectric Sensors Beta sensors offer the advantages of fiber optic sensors, without even bringing their disadvantages. In recent years, the series with Mini sensors and mini-light sensors together with associated amplifier developed continuously and have been proven in numerous practical applications.

Anyone who needs optical sensors for confined spaces often intuitively uses solutions with optical fibers. Although these require little space and bring advantages in high-temperature applications, they are inflexible when installed. In order to avoid a break in the light guide, minimum bending radii must be observed. Meanwhile, there are very reliable alternatives without fiber optics, which offer much higher resolutions and ranges at similar or even smaller dimensions. Their highly flexible copper wire between sensor and amplifier is easier to handle, and at the same time these fully electronic sensors can be flexibly adapted to individual application requirements.

In general, amplifiers and sensors are disconnected in the miniature sensors. This allows the amplifiers to be mounted where there is enough space and can also be individually selected and adjusted according to the application specifications. In addition, displays and push-buttons can be easily operated and read on the amplifier.

Various new miniature photoelectric sensors and miniature photoelectric sensors now rely on the so-called "Finespot" technology and are available in different designs. By integrating a high-performance optics, on the one hand smaller aperture angles can be realized and on the other hand higher resolutions and longer ranges can be achieved. The miniature photoelectric sensor EW-2-0-M, for example, is according to the manufacturer with 2 mm diameter, the smallest photoconductive light barrier in the world. It has an opening angle of only 3,5 ° and guarantees a resolution of 0,04 mm and ranges up to 500 mm without additional lenses or diaphragms. The miniature photoelectric sensor EW-M5-0-M offers a range of 2000 mm. With the 5 mm-measuring RT-5-0-M, for example, a light scanner has been added for pinpoint scanning of very small objects and a scanning distance of 60 mm.

Also new in the product range are the flat Finespot photoelectric sensors and light sensors. In the flat design, the sensor housing is at the same time fastening aid. This allows the sensors to be easily mounted using two screws and without any additional fasteners. Because of the small opening angle, they can be packed in the stack without interfering with each other. This makes it possible to realize simple light grids with high resolution in a minimum of space, as well as for the simultaneous interrogation of connector contacts.


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