APFS-11C ABB 工业触摸屏 适用于各种复杂的应用场景

ABB型号

名称:电力支持APS-11c

APFS-11C触摸屏具有以下特点：

显示界面为10.4英寸，64K色。

显示精度为800*600。

显示效果为高亮度、高对比度、高色饱和度。

操作方式为触摸屏操作。

接口类型为USB接口。

APFS-11C工业触摸屏是一种应用在工业环境中的触摸屏设备，具有坚固耐用、反应灵敏、防水防尘等特点，适用于各种复杂的应用场景。常见的工业触摸屏有电阻式触摸屏和电容式触摸屏两种类型。

电阻式触摸屏：

APFS-11C通过按压屏幕表面产生电压信号来实现触摸操作，适用于需要频繁使用手指或其他物体进行点按的场景。

电容式触摸屏：通过感应屏幕表面的静电场变化来实现触摸操作，支持多点触控和手势识别等功能，适用于需要复杂操作和高精度定位的场景。

触摸屏主要有以下类型：

电阻式触摸屏：

APFS-11C主要部分是一块与显示器表面配合非常好的电阻薄膜屏，是一种多层的复合薄膜，由一层玻璃或有机玻璃作为基层，表面涂有一层透明的导电层，上面再盖有一层外表硬化处理、光滑防刮的塑料层，它的内表面也涂有一层透明导电层，在两层导电层之间有许多细小（小于千分之一英寸）的透明隔离点把它们隔开绝缘。当手指触摸屏幕时，平常绝缘的两层导电层在触摸点位置就有了一个接触，电阻发生变化，在X和Y两个方向上产生信号，然后送触摸屏控制器。控制器侦测到这一接触并计算出（X，Y）的位置，再根据模拟鼠标的方式运作。这就是电阻技术触摸屏的最基本的原理。

电容式触摸屏：利用人体的电流感应进行工作。电容式触摸屏是一块四层复合玻璃屏，玻璃屏的内表面和夹层各涂有一层ITO导电层，最外层是一层只有0.0015毫米厚的矽土玻璃保护层。夹层ITO涂层作为工作面，四个角上引出四个电极，内层ITO为屏蔽层以保证良好的工作环境。当手指触摸在金属层上时，由于人体电场，用户和触摸屏表面形成一个耦合电容，对于高频电流来说，电容是直接导体，于是手指从接触点吸走一个很小的电流。这个电流从触摸屏的四角上的电极中流出，并且流经这四个电极的电流与手指到四角的距离成正比，控制器通过对这四个电流比例的精确计算，得出触摸点的位置。

红外线式触摸屏：在显示器屏幕的前面安装一个外框，外框里有电路板，框架四周有排布均匀的红外发射管和红外接收管，一一对应形成横竖交叉的红外线矩阵。当有触摸时，手指或其它物体就会挡住经过该点的横竖红外线，由控制器判断出触摸点在屏幕的位置。

表面声波式触摸屏：表面声波式触摸屏是根据被触摸点声波能量的变化来定位的。

APFS-11C ABB 工业触摸屏 适用于各种复杂的应用场景

ABB model

Name: Power support APS-11c

The APFS-11C touch screen has the following features:

The display interface is 10.4 inches, 64K color.

The display accuracy is 800*600.

The display effect is high brightness, high contrast and high color saturation.

Operation mode is touch screen operation.

The interface type is USB.

The APFS-11C Industrial touch screen is a kind of touch screen device used in industrial environment, which has the characteristics of rugged, responsive, waterproof and dustproof, etc., suitable for a variety of complex application scenarios. There are two types of common industrial touch screens: resistive touch screen and capacitive touch screen.

Resistive touch screen:

The APFS-11C achieves touch operation by pressing the surface of the screen to generate a voltage signal, which is suitable for scenarios that require frequent tapping with fingers or other objects.

Capacitive touch screen: By sensing the electrostatic field changes on the screen surface to achieve touch operation, support multi-touch and gesture recognition and other functions, suitable for complex operations and high-precision positioning scenarios.

There are mainly the following types of touch screen:

Resistive touch screen:

The main part of APFS-11C is a very good resistance film screen with the display surface, is a multi-layer composite film, by a layer of glass or plexiglass as a base layer, the surface is coated with a transparent conductive layer, and then covered with a layer of external hardening treatment, smooth anti-scratch plastic layer, its inner surface is also coated with a layer of transparent conductive layer. There are many small (less than one-thousandth of an inch) transparent isolation points between the two conductive layers to separate them. When the finger touches the screen, the two conductive layers of the usual insulation have a contact at the touch point position, the resistance changes, and the signal is generated in the X and Y directions, and then sent to the touch screen controller. The controller detects this contact and calculates the position of (X, Y), then operates in a manner that simulates a mouse. This is the most basic principle of resistive technology touch screen.

Capacitive touch screen: work with the current sensing of the human body. The capacitive touch screen is a four-layer composite glass screen, the inner surface of the glass screen and the interlayer are each coated with a layer of ITO conductive layer, and the outermost layer is a layer of silica glass protective layer only 0.0015 mm thick. The sandwich ITO coating is used as the working surface, four electrodes are drawn from four corners, and the inner ITO is the shielding layer to ensure a good working environment. When the finger touches the metal layer, due to the human electric field, the user and the touch screen surface form a coupling capacitor, for high frequency current, the capacitor is a direct conductor, so the finger draws a small current from the contact point. This current flows out of the electrodes on the four corners of the touch screen, and the current flowing through the four electrodes is proportional to the distance between the finger and the four corners, and the controller obtains the position of the touch point through the accurate calculation of the ratio of these four currents.

Infrared touch screen: Install an outer frame in front of the display screen, there is a circuit board in the outer frame, and there are evenly arranged infrared transmitting tubes and infrared receiving tubes around the frame, corresponding to the formation of horizontal and vertical cross infrared matrix. When there is touch, fingers or other objects will block the horizontal and vertical infrared rays passing through the point, and the controller will determine the position of the touch point on the screen.

Surface acoustic wave touch screen: The surface acoustic wave touch screen is located according to the change of the acoustic wave energy of the touched point.