Touch Sensor Switch

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Advantages of Touch Sensor Switch


 1. aesthetically speaking.

Touch switches are usually made of smooth glass plates, almost minimal in their simplicity, giving an elegant and classic touch to any home.


2. technically speaking.

the main advantage of a touch switch system, is that it can be connected with a home automation control system. In fact, touch switches have been designed to also be controlled remotely, facilitating the management of the lighting system, as well as reducing the electricity current leakage. These switches can be in fact controlled by a small electronic card.

Touch sensor switch gradually permeats your life

With the improvement of people's quality of life and development of technology, there are more and more domestic appliance turn into touching mode. They are used in a wide range of display applications, from smart homes and appliances to security and industrial solutions. There are two common types of touch sensors: capacitive touch sensors and resistive touch sensors. Here’s how they work.

How Capacitive Touch Sensors Work

It’s called capacitive because the technology is based on capacitive coupling that detects anything that is conductive or has a dielectric different from air. In this case, the human body (your fingers) is being used as an electrical charge conductor.

The way it locates where your finger is on the screen is the change of local electrostatic field when your finger touches the glass of the capacitive surface. An image processing controller continuously monitors the electrostatic field (or the movement of each tiny capacitor) to find where exactly the finger touched the screen. Figure 1 shows a helpful diagram from TCI.ed on how it tracks the electrostatic field.

How Resistive Touch Sensors Work

The other type of touch screen/sensor is resistive. Unlike capacitive touch sensors which have a glass layer only, resistive touch sensors have several layers, where the two main layers are the flexible plastic and glass layer. The front surface has a flexible scratch-resistant plastic with a coating of conductive material (usually Indium Tin Oxide) on the underside. The second layer is also coated with ITO and is made of either glass or hard plastic. When a finger (or a stylus) presses down on the flexible plastic, it contacts the second layer and measures the resistance of both the layers at wherever the point of contact was. Figure 2 shows a diagram on how it works.


1. When you are ready to install touch sensor switch, you must make sure the power are off. Otherwise risks may happen.

2.The place you chosen to hidden the touch sensor should be thin enough in order to make sure it can sense your action. Thinner than 30mm is OK.

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