Title:
SLANT-ANGLE MEASURING APPARATUS
Document Type and Number:
Japanese Patent JPH05180644
Kind Code:
A
Abstract:
PURPOSE:To measure the slant angle of a working mechanism highly accurately under the stabilized state without using a mechanical movable member. CONSTITUTION:A measuring container 20 constituting a bucket-angle measuring device 25 comprises a cylindrical member, whose both ends are closed. The measuring container 20 has a length L in the direction of the axial line. A tighly sealed liquid chamber 21 is formed in the inside of the measuring container 20. The inside of the liquid chamber 21 is filled with liquid. A lower pressure sensor 22 and an upper pressure sensor 23 are mounted on a bottom surface part 20a and a cap surface part 20b of the measuring container 20. Measuring heads 22a and 23a of the pressure sensors 22 and 23 are submerged into the liquid. When the differential pressure between both sensors 22 and 23 is detected, the slant angle of the measuring container 20 can be measured in this constitution.
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Inventors:
HAGA MASAKAZU
Application Number:
JP35822191A
Publication Date:
July 23, 1993
Filing Date:
December 27, 1991
Export Citation:
Assignee:
HITACHI CONSTRUCTION MACHINERY
International Classes:
G01B13/18; G01L13/00; (IPC1-7): G01B13/18; G01L13/00
Attorney, Agent or Firm:
Shunji Kagei