Introduction of Resistance and Sensing Capability of Light Touch Switch

 

Touch switch is a kind of switch and electrical component with strong inductive ability. Usually, this kind of switch has the middle characteristic of low resistance and has a feel when pressing the button. This is the characteristic and has different feedback. Here is the introduction of the detailed problems of these touch switches.

Among all kinds of switches, there is a displacement sensor, which has the ability to "perceive" the objects close to it. The purpose of controlling the switch on or off is to make use of the sensitivity of displacement sensor to close objects, which is to touch the switch lightly and approach the switch.

The light touch switch is widely used in household appliances because of its small contact resistance, clear touch and complete height specifications, such as video and audio products, digital products, remote controllers, communication products, household appliances, security products, toys, computer products, fitness equipment, medical equipment, banknote checker pen, laser pen keys and so on. But touch switch has its shortcomings. Frequent pressing will make the metal shrapnel lose elasticity and become ineffective due to fatigue. So now most of the electric buttons are directly replaced by conductive rubber or pot switch hardware shrapnel, such as computer keyboard, remote control and so on.

The light touch switch uses the sensitive characteristic of the displacement sensor to close the object to control the switch on or off. This is the light touch switch approach switch. When an object moves towards the close switch and approaches a certain distance, the displacement sensor will have "perception" and the switch will move. Usually this distance is called "detection distance". Different proximity switches have different detection distances. Sometimes the tested object moves to the proximity switch one after another at a certain time interval, leaving one after another, so that it repeats continuously. Different proximity switches have different responsiveness to detected objects. This response characteristic is called response frequency.

Above is the introduction and understanding of touch switch in these abilities, I believe that you can better understand these problems, and correct use of touch switch.