variable-intensity device

A tapered tube variable area ring orifice device for wet gas measure is developed. It combines a tapered tube, an inner circle-shaped movable baffle, a precision spring and a displacement sensor. Flow equation is given, with distance displacement for pressure difference.

本文提出了一种锥形管变面积环孔装置，用于湿气计量，采用锥形管、内圆形可移动阻流件、精密弹簧和位移传感器组合的结构设计，给出了用位移代替差压的气体流量方程。

It proposes to adopt variable stagger arrangement and to change the horizontal tension link on push-off device into the compression link so as to reduce the deflection of contact wire in area adjacent to mid-point anchor in straight line and in large span length up to 65 m.

提出在直线区段的中心锚结附近和65m大跨距内，采取不等之字值布置法和反定位装置处的水平拉杆改成压管的措施减小接触线风偏。

The technology to make a large area master with the grating of optically variable device ( OVD) is role in holographic image embossing.

制作具有光变图像（OVD）光栅条纹的大面积全息原版，是激光图像无油墨印刷的核心技术之一。

A novel integrated device of optofluidic variable-focus microlens array is proposed to solve the problems of electrical focus-tuning and integration fabrication of microlens array.

提出一种微流控光学变焦透镜阵列芯片，以解决变焦透镜阵列的电控调谐和集成化制造方法问题。

This paper study the planetary continuously variable transmission , this transmission is a electromechanical transmission device.

本论文研究了一种行星传动无级变速装置, 这是一种机电一体化的传动装置.