纳米级尺度实物标准是纳米尺寸传递体系中的关键环节，也是评价和校正压电驱动等微扫描微定位装置的重要工具。
Nanometer scale step standards are the keys for dimension transfer, and they are the important tools to evaluate and calibrate micro actuator and micro position devices such as piezoelectric scanner.
结合检测装置和微机控制系统，设计并研制了基于前馈控制同数字PID反馈控制相结合的复合控制的微定位系统。
Combining computer system and detecting device, the micro-positioning system of compound control is designed and researched. This system is based on feedforward and digital PID control.
该装置以组合量块为标准，采用可换向的单测头和成本较低的电感测微仪进行定位测量。
The new measurement system of thermal deformation adopts combined gauges as standard length, single switchable measuring head and inductance micrometers to carry on relative measurement.
救生衣gps定位装置包括相连接的微功耗gps定位机(4)和若干块上述水介质电池(5)。
The life jacket GPS positioning device comprises a micro power consuming GPS positioning machine (4) and a plurality of aqueous medium batteries (5), which are connected.
救生衣gps定位装置包括相连接的微功耗gps定位机(4)和若干块上述水介质电池(5)。
The life jacket GPS positioning device comprises a micro power consuming GPS positioning machine (4) and a plurality of aqueous medium batteries (5), which are connected.
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