Title:
CALIBRATION EVALUATION METHOD AND DEVICE FOR ACCELERATION SENSOR
Document Type and Number:
WIPO Patent Application WO/2003/087848
Kind Code:
A1
Abstract:
With an acceleration sensor (22), to be calibration-evaluated, fixed to the end surface (22) of a metal rod (1), a plurality of missiles (3) are allowed to impinge to the other end surface (2) of the metal bar at a specified time interval to generate an elastic wave pulse in the metal bar. Dynamic displacement, velocity and acceleration generated in a direction perpendicular to the end surface during a process in which the generated elastic wave pulse reaches and is reflected off the acceleration sensor-fixed end surface, are measured by the acceleration sensor, and also measured and computed by a strain gage (25) pasted on the side surface of the metal rod or by a laser interferometer (24) to determine a corrected acceleration, and the corrected acceleration is compared with an output from the acceleration sensor to thereby calibration-evaluate the acceleration sensor.
Inventors:
UMEDA AKIRA (JP)
Application Number:
PCT/JP2003/004130
Publication Date:
October 23, 2003
Filing Date:
March 31, 2003
Export Citation:
Assignee:
NAT INST OF ADVANCED IND SCIEN (JP)
UMEDA AKIRA (JP)
UMEDA AKIRA (JP)
International Classes:
G01P21/00; (IPC1-7): G01P21/00
Foreign References:
| US5000030A | 1991-03-19 | |||
| JPH05273232A | 1993-10-22 | |||
| JPH03109165U | 1991-11-08 |
Attorney, Agent or Firm:
Fukuda, Kenzo (6-13 Nishishinbashi 1-chom, Minato-ku Tokyo, JP)
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