Title:
NON-DESTRUCTIVE MEASURING METHOD AND INSTRUMENT BY MULTIPLEX OSCILLATION USING PSEUDO-RANDOM WAVES
Document Type and Number:
Japanese Patent JP3717163
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To conduct quick measurement by multiplex oscillation, possible by enabling separation of signals oscillated concurrently from a plurality of oscillators.
SOLUTION: This non-destructive measuring device is configured so as to transmit or receive at the same time pseudo-random waves with different code arrays from a plurality of oscillators 20 to analyze them, using the fact that pseudo-random code signals with different code arrays have mutually exclusive properties, and conducts analysis therefor. In this manner, only the signal of the individual oscillator is separated to provide an effect the same as that when the oscillations are issued from a plurality of oscillator positions.
Inventors:
Junichi Sakakibara
Hisakazu Tajika
TOKUO YAMAMOTO
Eisei Mouri
Hisakazu Tajika
TOKUO YAMAMOTO
Eisei Mouri
Application Number:
JP2002331057A
Publication Date:
November 16, 2005
Filing Date:
November 14, 2002
Export Citation:
Assignee:
JFE Civil Engineering & Construction Co., Ltd.
TOKUO YAMAMOTO
National Institute of Agricultural Engineering
TOKUO YAMAMOTO
National Institute of Agricultural Engineering
International Classes:
E02D1/00; G01M7/02; G01N29/12; G01N33/24; G01V1/02; G01V1/28; (IPC1-7): G01N29/12
Domestic Patent References:
| JP10186048A | ||||
| JP2297089A |
Attorney, Agent or Firm:
Satoshi Takaya
Keisuke Matsuyama
Tsuyoshi Makino
Keisuke Matsuyama
Tsuyoshi Makino
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