GX-H15A

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Proximity Sensors - GX-H15A Application Field and Working Principle

Proximity sensors are devices commonly used in industry and commerce applications to detect the presence of objects without contact. One of the most common types of these sensors are capacitive sensors, such as GX-H15A. This article explores the application field and working principle of the GX-H15A capacitive sensor.

Application Field

The GX-H15A capacitive sensor is most commonly used in industrial settings such as industrial machinery, automotive control, robotic systems, and air conditioning systems. These devices are also used to detect the presence of liquids, particularly in applications such as leak detection, fluid levels, and food inspection. GX-H15A capacitive sensors have also been increasingly adopted in consumer electronics, such as tablets, phones, and other consumer products. One of the main advantages of using capacitive sensors such as GX-H15A is their low cost and simplicity, making them popular in low-cost and low power applications.

Working Principle

The GX-H15A capacitive sensor is a self-servo-controlled device. It consists of a detection plate, an oscillator, and an amplifier circuit. When no object is present, the detection plate and oscillator remain in equilibrium. When an object, such as a finger or a conductive metal, touches the plate, the electrical capacitance of the plate changes, which alters the electrical oscillation of the plate’s oscillator. This change is detected by the amplifier circuit and converted into an electrical signal. This signal is then used to control the object or system to which the sensor is connected.

The GX-H15A sensor has a detection range of 10 millimeters, making it ideal for small applications such as detecting smaller objects. It has a peak response frequency of 25 kHz, can safely operate in a voltage range of 3 to 24 volts, and has a typical accuracy of ±0.5 millimeter. Additionally, the GX-H15A is highly reliable, with an operating temperature range of -25 to +85 °C. It is also resistant to electrical noise, env

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