Title:
【発明の名称】垂直に定着させた支柱の強さを求める方法及びその装置
Document Type and Number:
Japanese Patent JP3183893
Kind Code:
B2
Abstract:
PCT No. PCT/DE97/00773 Sec. 371 Date Feb. 16, 1999 Sec. 102(e) Date Feb. 16, 1999 PCT Filed Apr. 16, 1997 PCT Pub. No. WO97/40355 PCT Pub. Date Oct. 30, 1997A method and apparatus or device are shown for checking the solidity of vertically anchored masts increasing tensile and compression forces which can be acquired with a force sensor are introduced into the mast above its anchoring, in order to load the mast with bending moments aligned oppositely to one another. With at least one distance sensor which can be brought to bear against the mast above the mast anchoring a lateral deflection of the mast which occurs on account of the bending moments is measured. The readings for the force F and the deflection S produced by the force and distance sensors are processed in an evaluation unit with respect to the functions f=F(S) and f=S(F), this being separately according to the courses of the functions f1 for the compression loading case f2 for the tensile loading case. A deviation of the gradient of the course of the function f1 from the gradient of the course of the function f2 or from the respective reference values, which is determined with the elastic deformation of the mast, is evaluated as a criterion for a fracture formation in the mast.
Inventors:
Macias Rock
Oliver rock
Oliver rock
Application Number:
JP53758597A
Publication Date:
July 09, 2001
Filing Date:
April 16, 1997
Export Citation:
Assignee:
Macias Rock
Oliver rock
Oliver rock
International Classes:
G01L5/00; G01M5/00; G01L1/00; G01N3/08; (IPC1-7): G01N3/08; G01L5/00
Domestic Patent References:
| JP2251738A | ||||
| JP465651A | ||||
| JP862107A | ||||
| JP7270290A | ||||
| JP566182A | ||||
| JP5687849A |
Other References:
【文献】米国特許5051919(US,A)
【文献】欧州特許出願公開638794(EP,A1)
【文献】欧州特許出願公開638794(EP,A1)
Attorney, Agent or Firm:
Shogo Ohtake