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王骥教授在台晶电子公司做报告
2019-07-21  

王骥教授在台晶电子公司做报告

       201974日上午,应台湾晶技股份有限公司(台晶电子)邀请,王骥教授在台晶电子(宁波)做了“具有理想温频稳定性的石英晶体切型及其应用”的报告。此次报告采用卫星连线的方式,同步在台晶公司台湾总部、宁波分公司、重庆分厂直播。此次报告的听众包括台晶公司董事长在内的台晶全体职员。王骥教授的报告主要聚焦于温频稳定的石英晶体新切型。温度是影响石英晶体稳定性的最主要因素,石英晶体谐振器切型多半因温度而命名。历史上,人们曾提出过一系列温频稳定的切型,但是缺少寻找类似切型系统的方式,以及让人好奇是否存在比这些切型性能更好的新切型?王骥教授团队在系统研究的基础上,和研究生王少云等首先提出了寻找温频稳定切型的系统的方法,然后用该方法去寻找了温频稳定的切型,得到的结果与已有的切型一致,说明了方法的可靠性。最后,利用该方法发现了一些比现有切型温频性能优良许多的新切型。这些切型具有潜在应用价值,引起了台晶公司极大的兴趣。他们表示愿意和压电实验室一起共同研发相应切型的石英晶体谐振器新产品。

       王骥教授及其带领的压电实验室团队长期致力于石英晶体谐振器的分析与设计研究,包括谐振器核心部件晶体板的振动分析、谐振器电路参数的计算以及谐振器稳定性分析等等。王骥教授与主要生产石英晶体谐振器的公司保持着密切的交流和合作。此次报告所在的台晶电子正是全球领先的谐振器生产商,其产品销往苹果、华为在内的世界知名手机制造商。

 



 

       In the morning of July 4th, 2019, at the invitation of TXC Corporation, Professor Ji Wang presented a talk on "Quartz Crystal Cuts with Ideal Frequency Temperature Relationship and Its Application" at TXC Corporation. The talk was broadcasted by satellite link to TXC Headquarters in Taiwan, Ningbo Plant, and Chongqing Plant. Participants in the talk and discussions followed were all staff of TXC, including the Chairman of the company. Professor Wang's talk focused on the new cuts of quartz crystals with highly stable frequency-temperature relation. Temperature is the most important factor affecting the stability of operations of quartz crystal resonators. Most cuts of quartz crystal resonators are named for temperature properties. Historically, a series of temperature-stable cuts have been proposed, but there is a lack of methods to find similar cut-type, and engineers often wondering if there are better cuts than these known cuts? Professor Wang and graduate student Shoayun Wang first proposed a systematical method for finding crystal cuts with stable frequency-temperature relation, and then used this method to the known cuts for verification. The results are very close to the existing cuts, indicating the reliability of the method. Finally, using this method, some new cuts that are much better than the existing cuts with good temperature-frequency performance are found. These cuts have potential application in commercial products, which has aroused great interest from companies including TXC which is a partner for many years. They have expressed their interests to work with the Piezoelectric Device Laboratory to develop the novel products.

       Professor Wang and his team of Piezoelectric Device Laboratory have long been engaged in the analysis and design of quartz crystal resonators, including vibration analysis of crystal plates which are core components of resonators, calculation of resonator circuit parameters, and analysis of resonator stability. Professor Wang maintains close cooperation with leading companies in the design and manufacture quartz crystal resonators. The TXC Corporation is one of leading companies of quartz crystal resonators for leading electronics giants including Apple and Huawei.

 

 

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