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Optical sensors are a type of sensing technology that uses optical components to detect the presence or absence of objects. One type of optical sensor known as a photointerrupter works by breaking a beam of light and detecting when that beam is obstructed. Photointerrupters can be divided by type, and one of those types is the slot type which use a narrow slit between a transmitter and receiver to detect an object. Slot type photointerrupters also come in various different output formats, such as the transistor output model of the PM-T64.

PM-T64 Application Field and Working Principle:

The PM-T64 is a slot type photointerrupter with a transistor output. It can be used for a variety of applications, including digital object sensing and rotational speed detection, as well as the detection of rotational angles positions. It is widely used in a multitude of industries, such as automotive, robotics, and aviation.

The PM-T64 consists of a set of transmitter and receiver components mounted in a single housing. The transmitter is an infrared LED, and the receiver is a phototransistor. When an object passes between the transmitter and receiver, it casts a shadow over the path of the light, resulting in a change in signal strength detected by the phototransistor. This signals a change in state which can be used to detect the presence of an object.

The PM-T64 outputs in a transistor output format, meaning it can be connected directly to control circuits. When an object passes in front of the slot, the transistor output will switch from high to low, or low to high, depending on the current state of the output. This allows for an easy interface with other circuits, as well as the ability to use the PM-T64 in both digital and analog applications.

Conclusion

The PM-T64 is a slot type photointerrupter with a transistor output that is suitable for a wide range of applications. It is used in automotive, robotics, and aviation industries and offers an easy interface with circuits for easy use in both digital and analog applications.

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