RPI-0129

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Optical sensors are devices that detect light or the absence of it. They are typically used for detecting the presence of an object that interrupts a beam of light. Photointerrupters, which are a type of optical sensor, are especially useful for non-contact sensing in industrial automation systems. One such photointerrupter is the RPI-0129, which is a slot-type transistor output type.

The RPI-0129 is a compact pre-assembled unit with a pair of precision emitter and detector components with a slotted face. When the slotted face is interrupted, the transistor output changes from off to on. The RPI-0129 has a 8mm slot width, a 2.5mm detection distance and a fast response time of only 0.2ms.

The working principle of the RPI-0129 is based on the process of light interruption. Light is emitted from the emitter and then detected by the receiver at the opposite end of the slot. When there is no obstruction in the slot, such as an object or a person, the light is free to travel between the emitter and receiver. However, when something interrupts light in the slot, the receiver isn’t able to sense the light from the emitter and changes the transistor output to off.

The RPI-0129 has many application fields, including optical position detection, the detection of presence or absence in automated systems, and the measurement of the size or opening of a gap. In automated manufacturing systems, the RPI-0129 is used to detect objects as they move past a certain threshold; when the slot is interrupted, it triggers an event in the system. In optical position detection, the RPI-0129 is used to measure the position of a moving object, such as when coupled with a cam or belt drive. Finally, in the measurement of the size or opening of a gap, the RPI-0129 is used to measure the gap between two or more objects moving past one another.

The RPI-0129 is a versatile optical sensor that can be used in many applications. Its small form factor, fast response time, and robust construction make it a popular choice for non-contact sensing tasks. Its versatility and relatively low cost make it the ideal choice for industrial automation systems.

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