WS 20A型线切割仪是波兰科学院高压物理研究中心研制的一种微型切割仪(见图1).它的显著特点是切割的样品非常薄而且材料的损失小. 此仪器利用微型马达带动皮带轮转动,使得切割线来回迅速运动,用油和金刚砂做磨料进行切割.样品装在样品台上,在切割中样品可来回摆动15°,于是切口 WS 20A Wire Cutter is a micro-cutter (see Figure 1) developed by the High-Voltage Physics Research Center of the Polish Academy of Sciences. Its distinguishing feature is the very thin sample cut and the small material loss. The micro-motor drives the pulley to rotate , So that the cutting line back and forth rapid movement, with oil and emery to do abrasive cutting sample mounted on the sample stage, the sample can swing back and forth in the cutting 15 °, so incision