QSE159

Series:	OPTOLOGIC®
Part Status:	Active
Wavelength:	880nm
Type:	Photo Detector, Logic Output
Output Type:	Open Collector Inverter
Package / Case:	3-SIP, Side View
Operating Temperature:	-40°C ~ 85°C (TA)

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QSE159 Application Field and Working Principle

The QSE159 reflective photoelectric sensor is a device which detects the presence or absence of an object by emitting light and then measuring the reflection. It has been widely used for various industrial and automation applications such as robot positioning, presence detection, end of line detection, and material handling.

Optical Sensors

Optical sensors are devices that detect light and convert it into electronic signals. They are used to measure properties such as intensity, wavelength, angle, and color. They are often employed in industrial applications to provide information about the position or state of a machine or product.

Photo Detectors

Photo detectors are devices that convert the energy from light into electrical energy. They consist of a light-sensitive material such as a semiconductor which creates a voltage or current when exposed to light. This current can then be used to control a device, such as a switch or valve.

Logic Output

The QSE159 photoelectric sensor uses a logic output, which means that it generates a digital output signal to indicate whether an object is present or absent. The digital output signal generated can be either active low (0V when the object is present) or active high (5V when the object is present).

Working Principle

The QSE159 reflective photoelectric sensor consists of an infrared LED and a receiver which are mounted on the same housing. When the infrared LED is energized, it emits an invisible beam of light. When this light beam is reflected off an object, it is received by the receiver which converts it into an electrical signal. The signal is then processed by electronics inside the device, which produces an active low or active high output depending on the detected reflection.

Applications

The QSE159 reflective photoelectric sensor can be used in a variety of applications such as robot positioning, presence detection, and end of line detection. It is also suitable for sensing a variety of materials including wood, metal, plastic, and paper. It can also be used in industrial material handling for precise object detection. The sensor is available with different operating ranges, from a few centimeters up to 1 meter. It can also be mounted in any orientation, even upside down, which provides flexibility for different installations.

Conclusion

Overall, the QSE159 reflective photoelectric sensor is a versatile and reliable device for industrial automation applications. It is easy to install and offers a digital output signal indicating the presence or absence of an object. As it is available with different operating ranges and mounting orientations, it is suitable for a variety of applications and materials.

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