GX-FL15B

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Proximity sensors are an important class of sensors, which are widely used in countless fields. As a specific example, this article discusses the application field and working principle of GX-FL15B.

GX-FL15B is a universal, low-cost, high-efficiency proximity sensor developed by YUTAMU Technology. It adopts a 40mm long cylindrical housing and integrates optical sensing and differential capacitive sensing in one structure. The output of the device is a discrete signal, which can be used to realize effect control in various fields.

The application field of GX-FL15B is mainly sensing the presence or absence of objects. It is widely used in some machine tools and automated production lines. With its accurate control accuracy and fast response speed, this device can effectively help to improve the accuracy and efficiency of the production process. In addition, GX-FL15B can also be used in light curtains, safety switching, human-designed object recognition, and foreign body detection applications, where its performance can provide good protection for the equipment and personnel.

The working principle of GX-FL15B is based on the principle of optical emission and capacitive detection. The device consists of an infrared LED emitter, an infrared receiver, a photosensitive device, a differential capacitance sensing circuit, an amplifier circuit and an output signal driver.

When the infrared LED transmitter sends out optical signals, it will be interfered and attenuated by the object or target, causing variations in the output of the infrared receiver. The resulting variations on the receiver output are then amplified by the amplifier circuit and compared with the reference voltage to produce a signal representing the presence or absence of the object.

At the same time, the differential capacitance sensing circuit senses the capacitance changes between the sensing surface of the device and the target. In the absence of the target, the capacitor of the sensing circuit is discharged to a certain voltage. When an object approaches or enters the action range, the capacitance will change due the dielectric characteristics of the object, resulting in an increased current flowing through the sensing circuit. The output of the differential capacitance sensing circuit can also provide an accurate indication of the presence or absence of the object.

Combining the two sensing methods, GX-FL15B can accurately detect objects or targets in its sensing range. The combination of optical emission and capacitive sensing technology increases the sensing range and accuracy of GX-FL15B. This makes it ideal for machine tools and automated production lines that require precise control and fast response speed.

In conclusion, GX-FL15B is an universal, low-cost, and high-efficiency proximity sensor with wide application. It can accurately sense the presence or absence of an object, and is widely used in light curtains, safety switching, object recognition, and foreign body detection. The combination of optical emission and capacitive sensing technology makes GX-FL15B an ideal choice for machine tools and automated production lines.

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