Title:
漏油検出装置と方法
Document Type and Number:
Japanese Patent JP6411856
Kind Code:
B2
Abstract:
A system and method for detecting leakage oil with a high degree of accuracy while avoiding the complexity of the system and the influence of noise light comprise: ultraviolet light sources arranged to irradiate an oil-filled device from a plurality of different incidence angles, and are switched on and off at the respective incidence angles in sequence, and include a wavelength exciting oil; an imaging device to photograph the oil-filled device irradiated with ultraviolet light emitted from the ultraviolet light sources when the ultraviolet light sources are switched on; a recorder to record respective images photographed by the imaging device; and a display to display the respective images. The respective images are compared, a site where a light emitting position does not change always is judged as a leakage oil site, and a site emitting light or not emitting light occasionally is judged as a noise light site.
Inventors:
Ruri
Toshiaki Rokunohe
Tomohiro Moriyama
Atsushi Tamura
Akira Yamagishi
Saito Yasuchi
Toshiaki Rokunohe
Tomohiro Moriyama
Atsushi Tamura
Akira Yamagishi
Saito Yasuchi
Application Number:
JP2014212189A
Publication Date:
October 24, 2018
Filing Date:
October 17, 2014
Export Citation:
Assignee:
株式会社日立製作所
International Classes:
G01M3/38; G01N21/64; H01F27/00; H01F41/00
Domestic Patent References:
| JP5351081B2 | ||||
| JP8128916A | ||||
| JP7503317A |
Other References:
黒木雅彦,パルス蛍光法による透明な漏油の画像化技術,電気学会論文誌E(センサ・マイクロマシン部門誌),電気学会,1998年10月,118巻10号,第449-454頁
Attorney, Agent or Firm:
Yuji Toda