MEASUREMENT METHOD AND MEASUREMENT DEVICE

Title:

MEASUREMENT METHOD AND MEASUREMENT DEVICE

Document Type and Number:

WIPO Patent Application WO/2013/099984

Kind Code:

A1

Abstract:

A charge potential distributed over a vehicle body (2A) by the contact, separation, and friction between a tire (2B) and a road surface (3) is detected by a detection unit (10) provided with a sensing electrode (11) that is disposed on the external surface of the vehicle body (2A), a reference electrode (12) that is disposed apart from the external surface of the vehicle body (2A) with a space therebetween, and a sensor amplifier (13) that senses the potential between the sensing electrode (11) and the reference electrode (12) as a signal and amplifies the signal, and the amplitude of the charge potential detected by the detection unit (10) is monitored by a data processing unit (20), thereby making it possible to accurately identify not only the state of the road surface but also the internal pressure state of the tire, the wear state of the tire, and the like during traveling.

More Like This:

JP2956711	[Title of Invention] Surface Potential Sensor
WO/2003/048789	ELECTRODYNAMIC SENSORS AND APPLICATIONS THEREOF

Inventors:

TAKIGUCHI KIYOAKI (JP)
SUDA YOSHIHIRO (JP)
YAMABE SHIGEYUKI (JP)
KOUNO KENJI (JP)
HAYASHI TATSUO (JP)
YAMADA KOTARO (JP)
MASAKI NOBUO (JP)

Application Number:

PCT/JP2012/083724

Publication Date:

July 04, 2013

Filing Date:

December 26, 2012

Export Citation:

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Assignee:

UNIV TOKYO (JP)
BRIDGESTONE CORP (JP)

International Classes:

G01R29/12; G01B7/00; G01L17/00; G01M17/02; G01N19/02; G01N27/00; G01R29/24; G01W1/00

Foreign References:

JP2008037130A	2008-02-21
JP2001103652A	2001-04-13
JPH11108652A	1999-04-23
JPH1199812A	1999-04-13
JP2011203017A	2011-10-13
JP2011225023A	2011-11-10
JP2007056954A	2007-03-08

Other References: