10月，英国的Plessey Semiconductors of Roborough公司开始出售EPIC电位集成电路的样品，此样品可以测量到电场的微小变化。
In October, Plessey Semiconductors of Roborough, England, began shipping samples of its electric Potential Integrated Circuit (EPIC), which measures minute changes in electric fields.
利用光电位置传感器和二维双光杠杆放大，能够测量出二维微小距离的变化。
The change of two dimensional micro distance is measured by using a position sensor and the two dimensional amplification of double optical lever.
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