Title:
METHOD AND DEVICE FOR MEASURING DYNAMIC LINEARITY OF ACCELERATION SENSOR
Document Type and Number:
WIPO Patent Application WO/2003/087849
Kind Code:
A1
Abstract:
Two concentric missiles (8, 10) from dual launching tubes (4, 5) are allowed to impinge to one end surface (2) of a metal rod (1) independently and simultaneously or at a specified time interval to generate elastic wave pulses. Dynamic acceleration, produced at the other end surface (22) of the metal bar when the elastic wave pulses generated by the collision of respective missiles reach the end surface is measured by an acceleration sensor (23) fixed to the other end surface of the metal bar, motion at the end surface is measured by a laser interferometer (24) or by strain gages (25) provided on the side surface of the metal bar, and measurement signals are computed or corrected properly. A comparison between the computation results and the measurements by the acceleration sensor in a time region or in a frequency region determines the dynamic linearity of the acceleration sensor.
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Inventors:
UMEDA AKIRA (JP)
Application Number:
PCT/JP2003/004131
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:
G01P15/09; 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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