EE-SX4157E-P1

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Optical Sensors - Photointerrupters - Slot Type - Logic Output

The EE-SX4157E-P1 optically slots type logic output photointerrupter is a type of optical sensor typically used to detect presence and absence of objects. This device is presented as a result of highly advanced optical, electrical, and mechanical technologies and features assorted performance according to form and materials as well as superior sensitivity and reliability.

Application Field

The EE-SX4157E-P1 optically slots type logic output photointerrupter is capable of linear detection of objects regardless of the angle or objects linear motion, and it is an ideal sensor for various equipments such positioning detection, position adjustment, speed detection, and countermeasures.

In addition, it is applicable across a wide range of devices, such as elevators, escalators, vending machines, printers, copiers, ATMs, office automation, and 3C products including digital cameras, DVD players, VCRs, PHSs, and mobile phones, among other things.

Working Principle

This photointerrupter works with a parallel arrangement of a light source and a light receiving element composed of an LED and a phototransistor. When a metal plate or other object passes through the slot between these elements, the light path interruption will cause the electrical control circuit to be switched and translated into logic signals (on/off). The supply of output signals is indicated by the current transfer ration of the phototransistor, which can be steplessly adjusted by the potentiometer.

Moreover, its sensitivity for the presence of an object can be adjusted by the amplification circuit featuring a wide dynamic range, maintained in synergy with the error prevention circuit’s built-in guard circuit such as the current limiting resistor and a Zener diode.

The EE-SX4157E-P1 photointerrupter is designed with a one-piece combination of LED and internal structure. The structure incorporates a standoff sleeve that allows the unit to be fixed easily when mounted, with the 4 pin connectors providing an easy connection and improved reliability.

The EE-SX4157E-P1 features a variety of functions like a built-in Zener diode clamp circuit, detection on the bottom side, and dual direction detection modes enabled by the alternate connection of the LED, in order to offer superior detection performance and standing the daily wear and tear.

Conclusion

The EE-SX4157E-P1 optically slots type logic output photointerrupter is an advanced optical sensor capable of high sensitivity and reliability, thanks to the design technologies that integrate superior optical, electrical, and mechanical elements. The applications of this device are ranging from elevators, escalators, office automation to 3C products, while the device’s design allows the user to easily configure it to their needs and requirements.

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