Title:
【発明の名称】距離測定装置
Document Type and Number:
Japanese Patent JPH0726806
Kind Code:
B2
Abstract:
A fine displacement transducer, wherein either end of a first and a second optical fibers which are mutually adjacent are respectively provided in alignment with each other opposed to the reflection surface and the illuminating light is made incident from the one end of the first optical fiber and the light irradiated from the other end of the first optical fiber is made to illuminate its reflection surface, while the reflected light therefrom is received by the second optical fiber, so that the amount of displacement of the reflection surface relative to both end surfaces of the second optical fiber can be detected from the variation of intensity of the received light, and a measuring system wherein the reflected light from the reflection surface is received by either of the second or a separately provided third optical fiber to detect the intensity of received light for converting it into the electric signal.
Inventors:
Moriyama Shigeo
Fumihiko Uchida
Fumihiko Uchida
Application Number:
JP12715885A
Publication Date:
March 29, 1995
Filing Date:
June 13, 1985
Export Citation:
Assignee:
株式会社日立製作所
International Classes:
G01B11/00; G01B11/02; G01C3/00; G01C3/06; G01C3/08; (IPC1-7): G01B11/00; G01C3/06
Domestic Patent References:
| JP5946808A |
Attorney, Agent or Firm:
Junnosuke Nakamura
Next Patent: BUTTON LOCK