DC Field | Value | Language |
---|---|---|
dc.contributor.author | Gweon, Dae-Gab | ko |
dc.contributor.author | Seo, Jung-Woo | ko |
dc.date.accessioned | 2017-12-20T10:30:05Z | - |
dc.date.available | 2017-12-20T10:30:05Z | - |
dc.date.issued | 2003-05-13 | - |
dc.identifier.uri | http://hdl.handle.net/10203/232573 | - |
dc.description.abstract | A high-precision displacement measurement device and linear or rotational displacement measurement method using a unit displacement sensor based on a confocal theory. This device is simpler in construction, lower in cost and superior in resolution to other displacement measurement devices, and is capable of measuring a much wider area than other measurement equipment. The present device is adapted to project a spot of light from a light source on an object whose displacement is to be measured and measure a relative displacement of the object from a displacement of the projected light spot. To this end, the unit displacement sensor includes a transmission lens for transmitting a divergent beam of light emitted from the light source through a slit or pinhole with a certain size, a collimating lens for collimating the light beam transmitted through the slit or pinhole, an object lens arranged between the collimating lens and the object, a beam splitter for splitting a beam of light, reflected from the object to the transmission lens, according to a wavelength, and a photodetector for detecting a light intensity of the light beam split by the beam splitter. A piezoelectric actuator is provided to finely move the unit displacement sensor so as to always maintain optical signals detected by the photodetector at the maximum intensity. | - |
dc.title | High-precision displacement measurement device and method using unit displacement sensor based on confocal theory | - |
dc.title.alternative | 공초점원리의 단위변위센서를 이용한 초정밀 변위측정기및 다양한 변위측정방법 | - |
dc.type | Patent | - |
dc.type.rims | PAT | - |
dc.contributor.localauthor | Gweon, Dae-Gab | - |
dc.contributor.nonIdAuthor | Seo, Jung-Woo | - |
dc.contributor.assignee | KAIST | - |
dc.identifier.iprsType | 특허 | - |
dc.identifier.patentApplicationNumber | 09900220 | - |
dc.identifier.patentRegistrationNumber | 6563098 | - |
dc.date.application | 2001-07-06 | - |
dc.date.registration | 2003-05-13 | - |
dc.publisher.country | US | - |
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.