Polytec学术分享
Resonant frequency and damping analysis of high-temperature materials
At high temperatures, increasing damping pushes microphone-based RFDA to its limits. Learn how IMCE combines RFDA with Polytec's QTec laser Doppler vibrometry to measure elastic properties reliably, even u…
5 min
Making ultrasound visible
Sound at higher frequencies that is inaudible to the human ear is commonly referred to as “ultrasound.” Nevertheless, ultrasound can be made visible to the human eye with the aid of optical measurement tec…
6 min
实验室中的重力
任何想要测量G值的人，都需要一套能够实现看似不可能之事的实验装置——即探测由纯粹的“超距作用”引发的、小于原子直径的微小位移。苏黎世联邦理工学院（ETH Zurich）的尤尔格·杜阿尔（Jürg Dual）领导的研究团队多年来一直致力于应对这一挑战，他们利用最先进的激光测量技术和巧妙的实验设计，树立了国际标杆。
7 min