Title:
SHOCK SENSOR
Document Type and Number:
WIPO Patent Application WO/2004/065967
Kind Code:
A1
Abstract:
A shock sensor with high reliability which can surely sense a shock within a very short time period is disclosed. A shock sensor (10) comprises a magnetostrictive element (12) whose magnetic permeability changes according to the acceleration of a shock, a bias electric field applying means (14) for applying a bias electric field to the magnetostrictive element (12), and an electric field measuring means (16) for measuring the intensity of the electric field in the vicinity of the magnetostrictive element (12).
Inventors:
MORI TERUO (JP)
NONAKA SHINICHI (JP)
NONAKA SHINICHI (JP)
Application Number:
PCT/JP2004/000514
Publication Date:
August 05, 2004
Filing Date:
January 21, 2004
Export Citation:
Assignee:
TDK CORP (JP)
MORI TERUO (JP)
NONAKA SHINICHI (JP)
MORI TERUO (JP)
NONAKA SHINICHI (JP)
International Classes:
G01P15/00; G01P15/105; G01P15/18; (IPC1-7): G01P15/00; G01P15/08
Foreign References:
| JPH05133977A | 1993-05-28 | |||
| JPH07198738A | 1995-08-01 | |||
| JPH02218965A | 1990-08-31 | |||
| JPH08178950A | 1996-07-12 |
Attorney, Agent or Firm:
Matsuyama, Keisuke (10-12 Yoyogi 2-chome, Shibuya-k, Tokyo 53, JP)
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