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<table cellpadding="3" cellspacing="0" width="100%" class="forumline"> <thead> <caption><table border="0" cellspacing="0" cellpadding="0" width="100%" class="forumheader"> <tr> <td align="left" valign="bottom" width="25"><img src="http://picsrv.fora.pl/AcidTechTiger/images/hdr_left.gif" width="25" height="27" alt="" /></td> <td align="center" class="forumheader-mid">Topic review</td> <td align="right" valign="bottom" width="25"><img src="http://picsrv.fora.pl/AcidTechTiger/images/hdr_right.gif" width="25" height="27" alt="" /></td> </tr></table></caption> </thead> <tbody> <tr> <th class="thCornerL" width="22%" height="26">Author</th> <th class="thCornerR">Message</th> </tr> <tr> <td width="22%" align="left" valign="top" class="row1"><span class="name"><a name=""></a><b>lompiacv</b></span></td> <td class="row1" height="28" valign="top"><table width="100%" border="0" cellspacing="0" cellpadding="0"> <tr> <td width="100%"><img src="http://picsrv.fora.pl/AcidTechTiger/images/post_old.gif" width="12" height="9" alt="Post" title="Post" border="0" /><span class="postdetails">Posted: Wed 18:09, 08 Dec 2010<span class="gen"> </span> Post subject: true religion jeans Materials, the thermal expansi</span></td> </tr> <tr> <td colspan="2"><hr /></td> </tr> <tr> <td colspan="2"><span class="postbody">Materials,<a href="http://www.truereligiontruejeans.com" target="_blank">true religion jeans</a>, the thermal expansion coefficient measurement method comparison of modern development and introduction <br /> <br /> <br />xp ~ imaMea-purpose health tn her byLaserDiffractima. 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Measured with a fiber Bragg grating thermal expansion coefficient. Optoelectronics Laser, 2003,14 (10) [15] Chen Siying, such as electronic speckle pattern interferometry using thermal expansion coefficient measurements. Laser and Particle Beams, 2004,16 (6) [16] ChiHsiangPan. ASimpleMethodforinSituDeterminationofLinearThermalExpansionCoefficientsofThinFilms. Dyn ~ nleSystemsandControlDivision. 2000. V01.1 :105-112 [17] H. Wang, N. Yamada,<a href="http://www.stivaliuggboots.com" target="_blank">stivali ugg</a>, M. Okji. ExaminationofThermalExpansionUniformityofGlassyCarbonasaCandidateStandardReferenceMaterialforThermalExpansionMeasurements. NetsuBus. sei. 2000,14:92-96 piezoelectric ceramic motor in CNC gear measuring instruments of Xu Zhiwei Liu Shibin (Harbin Measuring & Cutting Tool Group Co., Ltd., Harbin 150040, China) brief summary of the working principle of piezoelectric ceramic motor and performance analysis of the piezoelectric ceramic motors for CNC gear measuring instruments on the advantages and disadvantages, verified through the practical application of piezoelectric ceramic linear motor drive system can be used as gear measuring instruments. Key words piezoelectric ceramic motor; CNC gear measuring instruments; positioning accuracy of CNC gear measuring instruments 0 Introduction is a multi-axis CNC gear measuring instruments, mainly for the deviation of helical gears, tooth profile error, pitch error and other parameters testing, the instrument through the electronic probe generating method of the instrument out of the contact surface in the ideal gear curve, and the actual processing of the gear contact surface curves to arrive at the 'error curve of barium 4 gears to determine the processing gear eligibility. Multi-axis CNC gear measuring instruments in the control system of CNC, the electrical components as the executive has a very important role. Positioning accuracy of gear measuring instruments is an important measure of its performance indicators, this indicator directly affected by the power of 36 * machine performance. Conventional gear measuring instruments and more with step motor or servo motor driven ball screw to achieve a straight line measurement of body movement, its complex mechanical structure, large size. Although in recent years a new type of linear motor drive system applications,<a href="http://www.toryburchsaler.net" target="_blank">tory burch sale</a>, but expensive. This paper describes a relatively inexpensive direct drive motor, which is based on ultrasonic standing wave in the piezoelectric principle of the phenomenon of the piezoelectric ceramic motor design, combined with the experience of its own performance and application of the principle. l principle and characteristics of piezoelectric ceramic motor 1.1 Principles of piezoelectric ceramic piezoelectric ceramic motor motor is a new concept of a new motor, it is salt Jin QQ ink: <br /> <br />相关的主题文章： <br /> <br /> <br /> <a href="http://it.nankai.edu.cn/cpp/Review.asp?NewsID=219" target="_blank">圆柱度测量仪示值不确定度评定_1406</a> <br /> <br /> <a href="http://www.suzukibandit.fora.pl/info,1/ugg-stivali-how-to-apply,19754.html#20434" target="_blank">ugg stivali How to apply,</a> <br /> <br /> <a href="http://mba.huison.net/plus/view-9312-1.html" target="_blank">true religion jeans Double tail fin and shaft supp</a></span></td> </tr> </table></td> </tr> <tr> <td colspan="2" class="spaceRow"><img src="http://picsrv.fora.pl/AcidTechTiger/images/spacer.gif" alt="" width="1" height="1" /></td> </tr> </tbody> </table>
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