Five novel torsion-mirror optical actuators including double-beam thickness differential structure with single torsional axis, double flexible folded-beam structure with single torsional axis, double-beam vertical torsion comb structure with single torsion axis, four-beam differential compound-micromirror structure with double torsional axis and the combined structure of the four basis forms above, are brought forward. All of these devices could be fabricated by the same silicon micromachining process we have developed. The deformation compensation design with local enhancement for the thin torsional beam which is the key structure of these devices is also put forward to improve the reliability. The three-dimension solid model and two-dimension reduced order model of the torsion-mirror optical actuator are established and then the numerical simulations for evaluating the device characteristics of the statics, dynamics, electrostatic field, mechanical and electrostatic coupling, fluid and solid coupling are carried out to optimize the structure design. Furthermore, three optical fibre clamping structures which could be integrated monolithicly are designed and analyzed to improve the optical coupling capability. 4. Three flexible process flows combined with bulk silicon micromachining and surface silicon micromachining are brought forward to fabricate these novel single-crystal silicon or polysilicon torsion-mirror optical actuators by using the same lithography masks for both SOI wafer and regular silicon wafer. A series of important process experiments are carried out to optimize the process parameters and the process flows. Some novel and typical process phenomena which occurred during the microfabrication are analyzed and then the corresponding solutions are put forward. 5. A MEMS dynamic testing system which exploit blur image synthetic technique, stroboscopic image matching technique, stroboscopic mirau microscopic interferometry technique and microscopic laser dopper vibrometer technique is set up to measure three-dimension and six-freedom micro motions of any MEMS devices with nanometer resolution.

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Mechanical mouse is to rely on its internal mechanical grating generated by electronic devices to determine signal direction and speed of the mouse, so that when the light source outside of the optical signal within the mouse have an impact, the mouse will become "扭扭捏捏, hysteresis Shibuya condensate."

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The utility model is characterized in that a commonly used escalator which is formed by a plurality of active rundles and handrails is assembled on a vehicle, and the drive force of the escalator is suppplied by the vehicle through the mechanical transmission system; a mechanical transmission system is added in the vehicle and the mechanical transmission system mainly transmit the dynamic energy to the escalator carried on the vehicle, the rundles and the handrails can move in positive or opposite direction synchronously; a hydraulic power transmission system is added in the vehicle, and then the hydraulic power transmission system mainly transmit the dynamic energy to the escalator carried on the vehicle as well as related hydraulic power transmission devices or facilities; the whole vehicle-carrying escalator is supported by the supporting facilities, or the whole vehicle-carrying escalator moves upwards and downwards taking the axle direction which movably connects the lower end and the tail end of the vehicle as center.

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The bondless pressure contact devices are found to have comparable electrical characteristics to substrate mounted devices.however due to differences in the mechanical and thermal properties,these devices may offer exploitable advantages in some applications.

我們發(fā)現(xiàn)無焊壓裝器件和基板安裝器件有相當(dāng)?shù)碾姎馓匦怨ㄇ返鹘汤Π笤谙卟シ拧Ｈ欢捎跈C(jī)械和熱特性的不同，在一些應(yīng)用場(chǎng)合它更可能提供優(yōu)勢(shì)永久免费AⅤ在线观看。

"Hydraulic safety valve" is widely used in hydraulic power systems and hydraulic equipment of safety devices, pressure devices can be limited, is a special valve, which is different from the conventional valve, the traditional use of mechanical valves metal spring as a driving force, can only be limited to low pressure, encountered more BALANCING VALVES than 10Mpa pressure limit pressure can do to increase the volume of pressurized design, the traditional role of the high-pressure valves and high pressure hydraulic power systems and hydraulic equipment The limit pressure of necessity is bulky and complicated structure, difficult to manufacture large, high production costs; in the course of the fatigue of metal spring parameters change fluctuating pressure limiting Ambassador to regular revision to ensure the normal use.

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Valve and filter mechanical devices are sterilized .

閥門和過濾結(jié)構(gòu)裝置經(jīng)過殺菌的欧美精品免费A片在线12页。

Stretcher with adjustable foot safe mechanical devices such as seat belts.

擔(dān)架配有可調(diào)節(jié)的腳部安全機(jī)械裝置曰韩无码A片免费视频，安全帶等。

Golestanian and his team are busy dreaming up a range of mechanical devices that incorporate the rack and pinion design. He thinks that one of the first technical challenges will be finding a way of making the corrugations on the pinion.

目前上述小組正在研究這種齒條及齒輪設(shè)計(jì)可以應(yīng)用在哪些機(jī)械元件中4455vs永久亚洲，Golestanian則認(rèn)為他們首先將面臨的技術(shù)挑戰(zhàn)之一欧美大码变态另类，在於找到在齒輪上制作皺紋的方法。