Design and Fabrication of an Ultrasonic Manipulator for Handling Micron Sized Object

• Main Authors: Huang, Chengpin, 黃承彬
• Other Authors: Hou,Ti-Kuang
• Format: Others
• Language: zh-TW
• Published: 2012
• Online Access: http://ndltd.ncl.edu.tw/handle/09320562701668229975

碩士 === 國立聯合大學 === 機械工程學系碩士班 === 100 === In this study, ultrasound standing wave was generated to achieve non-contact micro-assembly. We used a commercial ultrasound transducer to generate ultrasound. The ultrasonic reflector was made of PMMA plate. Using a lifting platform, the distance between the ultrasonic transducer and reflector to generate was adjusted to create standing wave. The objects were gripped and suspended. In this study we present two ways to move small objects. First, we change the angle of the reflector, so we can horizontally move small objects. The moving distance is proportional to the rotation angle. One degree of rotation angle made small objects moving about 2.68 (mm). Second, we directly move the platform to move the object. Adjusting the spacing makes the object land on the ground. In this study, an ultrasonic standing wave with a frequency of 45 kHz was used. The distance between node and ultrasonic transducer surface is approximate 2 (mm). Using this method, small scrapped papers with a volume ranging from 0.6 to 0.036 (mm3) were successfully manipulated. A scrapped paper was moved about 21 (mm).