Why use capacitive sensing buttons

Capacitive sensing buttons are increasingly being used in our daily lives. Elegant and stylish capacitive sensing interfaces are more and more widely used in PMPs, mobile phones, computers, POS terminals, air conditioners, range hoods and other electronic devices. , And now it is widely used in industrial and medical applications.

1. Advantages and implementation methods of touch operating system:

There are several reasons for adopting the touch operating system. One of the basic reasons is to obtain higher reliability and durability. For example, the buttons in public kiosks are subject to a lot of improper use and frequent operations. Mechanical buttons are prone to wear and failure, and replacing buttons and repairing mechanical sensors will increase the total system cost. When using a touch operating system, the system is more durable, which can reduce the total cost from a long-term perspective. Touch operating systems can also have more flexibility because their buttons can be used for multiple functions. For example, on a traditional industrial keyboard, mechanical buttons can actually only perform a single function, or can only represent a prescribed menu option. When using a touch screen, because the display can be continuously changed, more ways to design the interface can be used. The only limitation is the need of the design scheme. By the same token, since a single button can be used for multiple purposes, the touch operating system can have more functions in a smaller space. Finally, an important advantage of a touch operating system compared to a mechanical button is that it can improve the end user's experience, and touch-based solutions are usually more intuitive and easy to use.

The touch operating system can be implemented in many different ways. These include the use of resistive films, infrared sensors, and even surface acoustic waves. The capacitive sensing can be activated when the presence of a finger is sensed, without the touch pen or pressure required by the resistive film. Because touch-based solutions have no mechanical moving parts, they are more durable than mechanical buttons and switches. Among various touch-based solutions, capacitive sensors have extremely excellent durability. Infrared solutions will be adversely affected by surface contaminants, and capacitive sensing technology has strong tolerance to environmental factors. Because capacitive sensing can use a variety of coating materials, and can use different levels of resolution and accuracy, it will not be limited to certain specific applications. Capacitive sensing can be applied to consumer electronic products, as well as industrial or household appliances.