unit-selector switch

In all-optical network, date signals in transmission and switching unit are all optical signals. Switch is no longer on the handling of user information carried by bit, but realized through wavelength routing device.

全光网络以光节点代替电节点，节点之间也是全光化，信号以光的形式进行传输与交换，交换机对用户信息的处理不再按比特进行，而是通过波长选择器件实现路由选择。

An experimental unit for measuring instantaneous speed of high speed train passing through tunnel with a photoelectrical switch is designed.

设计了一套采用光电开关测量高速列车进出隧道瞬时速度的实验装置。

To design and realize a large scale video frequency switching network, which is rearrangeable and nonblocking, taking the video crosspoint switch as the basic switching unit, a three stage nonblocking Clos network was constructed, and the signal route was selected by a route table.

设计和实现一个可重排无阻塞的大规模视频矩阵切换网络.基于多级互连网络，以视频交叉点开关作为基本的交换模块，组成一个三级非对称Clos网络。

By using LabWindows/ CVI from NI Corporation and Visual FoxPro database, a testbed for Fly-By-Wire ( FBW) control system, which use ODBC technique is given. Method on how to use Agilent 34970A data acquisition/ switch unit to acquire data is also introduced here.

采用NI公司的LabWindows/CVI软件开发平台，通过ODBC实现LabWindows/CVI和VISUAL FOXPRO数据库之间共享数据，设计了某型飞机电传操纵系统联调试验台，并介绍了使用Agilent34970A数据采集/开关单元进行数据采集的方法。

The solid heat conduction along the flow direction and the regenerator heat storage capacity for the unit volume has no impact on temperature efficiency peak and optimal switch time.

沿气流流动方向固体导热和单位质量固体蓄热能力不影响温度效率峰值和最佳切换周期。