在生物学和医学中的应用

在大部分医学和生物应用中，MEMS结构是关键的基础性和代表性技术。显微分析系统应用范围广泛，从用于快速医疗诊断的芯片实验室高频表面波应用、到助听器的 MEMS 麦克风、再到基于微系统技术的用于医疗成像的超声换能器。 

您可以依赖 Polytec 基于显微镜的非接触式光学测量技术，来确定医疗 MEMS 传感器和致动器的表面形貌和动态特性。例如，基于显微镜的振动测量也用于从自然到技术系统的仿生启发式“技术转移”，如测量昆虫听力的生物力学。

Deflection shape of cMUT transducer array, University of Alberta
Deflection shape of cMUT transducer array, University of Alberta

实际示例：

微机械压电超声换能器 (pMUTs)不断突破实时 3D 医学成像（超声检查）的应用极限，如血管内超声 (IVUS) 和超声心动图等。

Polytec显微系统分析仪采用非接触式测量方法，在高频（~10MHz）高空间分辨率（<1μm）条件下，最高精度测量超声换能器的微机械结构的振动特性。

Vibrometer scan on BioMems revealing the amplitude of vibrations in a phononic cone, able to focus the energy at specific locations, Reboud J., et al, Glascow University
Vibrometer scan revealing the amplitude of vibrations in a phononic cone, able to focus the energy at specific locations, Reboud J., et al, Glascow University

Development of phononic surface acoustic wave devices

Phononic surface acoustic wave devices have shown great potential for enabling integrated point-of-care diagnostics, using the mechanical energy carried by sound to manipulate liquid samples from patients on low-cost microchips. Reserachers have demonstrated the detection of malaria [Reboud J. et al., PNAS, 2012, 15162-7] from the volume of a fingerprick of blood using an acoustic filter. Laser vibrometry is an essential tool of the development process that permits the visualization of true vibrations on the surface across the entire microchips, thus validating our designs. In the future, more complex assays will be integrated on the platform to detect diseases such as tuberculosis.

Microstructure characterization

更多应用

Your PolyXpert in Vibrometry

+86 138 1120 3502
info-cn@polytec.com