GP-A14FI

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Optical Sensors - Photointerrupters - Slot Type - Logic Output

Optical sensors can be used in many diverse applications where precise position feedback is needed. The GP-A14FI is a photointerrupter of the slot type, meaning that it works by sensing when an object blocks its field of view. This particular device is a logic output, meaning that when a mechanical object or other material enters its detection field, a logic low signal is output.

Design and Structure

The GP-A14FI has a compact yet sturdy plastic outer shell that measures 28.3mm x 11.1mm x 12.9mm, making it easy to incorporate into whatever system it is placed in. It weighs just 3.2g and has the option of surface or thru-hole mounting. At the front of the device is an infrared emitting diode and an IR phototransistor that make up the sensing element, and these form a slot with a length of 8.6 m. The IR LED has a rating of 30mA/5mA/2mA while the IR phototransistor has a current capacity of up to 45mA.

Optical Characteristics and Responsivity Spectrum

When used with a voltage rating of 6V - 12V DC, the GP-A14FI has an operating visible red light wavelength of 650nm - 850nm, with an optical class of 1. As far as input current goes, the device can handle a minimum of 1mA and a maximum of 10mA. The responsivity spectrum for this device is quite wide, ranging from 400nm to 980nm, making it suitable for a number of visible and near-infrared applications.

Working Principle

The GP-A14FI works by emitting a beam of infrared light from the emitter component out of the device into the surrounding area. When an object intercepts the beam, the light is blocked from reaching the receiver component, which sends a logic low signal to the computer interface to indicate that something has been detected. The IR LED, IR phototransistor and the slot form the sensing element of the GP-A14FI.

Features and Benefits

The GP-A14FI can provide precise position feedback for wide range of applications. Some of its features include a wide operating voltage range of 4 to 24v, high reliability, low dispersion of slot type sensing, a wide responsivity spectrum, ultra-compact size, as well as many others. It is also highly reliable due to its opto-isolated technology, meaning that it is able to withstand electromagnetic interference.

Applications

The GP-A14FI can be used in a broad array of applications. It is often used in robotics or automation systems due to its precise position feedback. It is also suitable for document handling, material handling, and other applications where the ability to detect objects is needed. Additionally, it is often used in security systems and door control, as well as measurement and control systems for various industrial applications.

Conclusion

The GP-A14FI is a slot type photointerrupter with a logic output that is ideal for many industrial and automated applications. Its opto-isolated technology allows for high reliability and accurate feedback from its sensing element, making it a suitable choice for robotics and automation systems as well as for document and material handling. Additionally, it is often used for security systems and door control, measurement and control systems, and other applications.

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