BURIED METER AND STRUCTURE MEASUREMENT SYSTEM

WIPO Patent Application WO/2004/068436

A1

A buried meter wherein a sensor section (10A) for sensing a physical quantity relating to a change of state of a structure is provided to a part of a case (10), and the meter has, in the case (10), a converter (11) for converting the physical quantity sensed by the sensor (10A) into an electric signal, a transmission circuit section (12) for outputting a carrier signal modulated with the output of the converter (11), a drive section (13) for driving the converter (11) and the transmission circuit section (12) by the power from a battery (15), and a transmission coil (14) for generating a low-frequency magnetic field signal in response to the output of the transmission circuit section (12). The case (10) is buried in the structure. By adopting a wireless communication system, the water stop function of the structure is adequately ensured, and the measurement sensor is prevented from breaking. Data can be remotely collected, and the strength characteristic of the structure is not adversely influenced.

KOHGO YUJI (JP)
NAKAJIMA ISAMU (JP)
ENDOH SHINICHI (JP)
TOHMETSUKA RYOICHI (JP)
YAMAZAKI NOBUYOSHI (JP)
YANO KOMEI (JP)
TAKAHASHI AKIRA (JP)
KAKUE TOSHIAKI (JP)

PCT/JP2003/016676

August 12, 2004

December 25, 2003

Click for automatic bibliography generation  

NAT INST RURAL ENGINEERING (JP)
SAKATA DENKI CO LTD (JP)
KOHGO YUJI (JP)
NAKAJIMA ISAMU (JP)
ENDOH SHINICHI (JP)
TOHMETSUKA RYOICHI (JP)
YAMAZAKI NOBUYOSHI (JP)
YANO KOMEI (JP)
TAKAHASHI AKIRA (JP)
KAKUE TOSHIAKI (JP)

G08C19/00; G01D21/00; G08C17/00; G08C17/02; (IPC1-7): G08C17/00; G01D21/00; G08C19/00

JP2002039810A	2002-02-06
JPH11273976A	1999-10-08
JPH02290512A	1990-11-30
JP2001082958A	2001-03-30

Kobashi, Nobukiyo (6-10 Ebisuminami 1-chom, Shibuya-ku Tokyo, JP)

View/Download PDF      PDF Help

Previous Patent: TRIMMING FOR REMOTE CONTROL

Next Patent: FIBEROPTIC SYSTEM