什么是爱尔兰的白板。电阻膜技术的原理是电子白板的基本结构由多层膜组成，包括水平线电阻膜，绝缘网，导电膜，绝缘网，垂直电阻膜等。并且组合的薄膜与使用的区域具有相同的尺寸。工作原理是向电阻膜添加固定电压。在没有外力的作用下，导电膜不接触电阻膜，没有测量电压，并且没有定位的信息反应。当在电阻膜的某个点按下硬物时，电流被测试电路通过导电膜读取，就像从电位计到不同电压的点测试，这与触摸的位置有关点，根据垂直方向上读取的电压的电平可以转换为触摸点的x和y方向。电阻触摸屏是网格扫描实现，其特征在于，当物体被压靠膜的表面时，它可以反射压制物体的位置。技术的优缺点分析：优点：1。定位相对准确。2，无特殊笔，可以做触摸操作缺点：1，写作需要一定的优势2，不能做大面积主要用制造商：美国：互动技术，互动技术：电磁感应电磁感应类型的工作是：电磁波可以是空气由空气和绝缘物体传递。 The electromagnetic induction type is composed of a receiving coil film that can emit electromagnetic waves and is arranged in two horizontal and vertical directions. The size of the film is the same as the display area. The principle of positioning is that the pen that emits electromagnetic waves emits electromagnetic waves in an intermittent manner. When the pen is close to the film of the receiving coil, the electromagnetic waves emitted by the pen are sensed on the coil. The higher the electromotive force induced by the coil group closest to the pen, the electromotive force induced according to the horizontal direction and the vertical direction can be obtained by calculation.