ACCELERATION SENSOR, AND AVIAN INFLUENZA MONITORING SYSTEM

WIPO Patent Application WO/2008/072705

A1

Intended is to provide an acceleration sensor or the like capable of reducing the power requirements while reducing the size and weight. The acceleration sensor (210A) is constituted by connecting a plurality of piezoelectric material units (212) having a deformable member (211) deformed according to an acceleration applied, in series, and by connecting a signal processing circuit (213) with the piezoelectric material unit (212) at a predetermined position. To the signal processing circuit (213), there is applied a voltage according to the number of the piezoelectric material units (212), from the ground side acting as a reference potential to the piezoelectric material unit (212) connected with that signal processing circuit (213). If that voltage exceeds a preset voltage, a signal to turn ON the signal processing circuit (213) is outputted. On the basis of this signal, the acceleration can be digitally measured.

KOBAYASHI TAKESHI (JP)
ITOH TOSHIHIRO (JP)
IKEHARA TSUYOSHI (JP)
ICHIKI MASAAKI (JP)
MAEDA RYUTARO (JP)

PCT/JP2007/074051

June 19, 2008

December 13, 2007

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NAT INST OF ADVANCED IND SCIEN (JP)
KOBAYASHI TAKESHI (JP)
ITOH TOSHIHIRO (JP)
IKEHARA TSUYOSHI (JP)
ICHIKI MASAAKI (JP)
MAEDA RYUTARO (JP)

G01P15/09; A01K67/00

JP2005278547A	2005-10-13
JPH0684369U	1994-12-02
JPH0392764A	1991-04-17

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