PM-K25-R

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Optical Sensors, such as photointerrupters, are devices that use the optical properties of materials, such as light, to detect various physical stimuli. In this article, we will discuss the application field and working principle of the PM-K25-R; a slot-type photointerrupter with a logic output.

PM-K25-R photointerrupter is a type of optical sensor which utilizes an infrared LEDas its light source and a 4-pin NPN phototransistor as its light detector. It is designed to detect the presence of a gap, slot or hole up to 0.5mm wide.The PM-K25-R can be used to detect paper vs. printer paper feed, position sensing, counting and sensing of sheet metal, and thickness sensing.

The working principle of the PM-K25-R photointerrupter is based on an Infrared Emission/Detection System. The PM-K25-R contains an LED light source and a phototransistor. When the LED emits light, the phototransistor will be activated and output an electric signal. When the gap, hole or object interrupts the emitted light, the phototransistor will not receive the LED light and will thus fail to output the electric signal.

The PM-K25-R also features a logic output. This means that the output signal of the sensor is a simple 3-state logic signal. The state of the logic signal will change depending whether the LED is being received or not; when the LED is being received, the logic output will be high, and when it is not, the logic output will be low. The logic output of the PM-K25-R also uses a push-pull principle, which means that the output signal will be in either of the two states, high or low.

The PM-K25-R can be used for a wide range of applications. It can be used to detect paper or printer paper feed, position sensing, counting and sensing of sheet metal, and thickness sensing. It is also suitable for applications such as counting objects, continuous monitoring and material thickness measurement. The PM-K25-R can also be used in automotive, industrial and consumer electronics applications.

In conclusion, the PM-K25-R is a slot-type photointerrupter with a logic output. It is designed to detect the presence of a gap, slot or hole up to 0.5mm wide. It works on an infrared emission/detection system and can be used for a variety of applications.

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