Title:
波形検出装置とそれを使用した状態監視システム
Document Type and Number:
Japanese Patent JP3704336
Kind Code:
B2
Abstract:
The present invention provides a waveform detection system featuring a signal-processing function that characterizes and detects non-cyclic transient variations and performs 1/f fluctuation conversion for input waveforms to derive output waveforms, and a state-monitoring system that uses the waveform detection system. For this reason, the waveform detection system of the present invention that characterizes signs of state variations incorporates multiple digital filters in the digital filter calculator of the computer; uses coefficient patterns derived from non-integer n-time integration as elemental patterns for multiplication coefficient patterns; and incorporates a means to change the phase of at least one of the elemental patterns, input signal data, and digital filter output (phase-matching parameter setter) so that the outputs of digital filters that use the elemental patterns are synthesized in a state where a portion of the phases of the characteristic extracting and processing function is changed.
Inventors:
Yoichi Ueishi
Tetsuyuki Wada
Tetsuyuki Wada
Application Number:
JP2002589808A
Publication Date:
October 12, 2005
Filing Date:
May 15, 2001
Export Citation:
Assignee:
Shinkuro Co., Ltd.
International Classes:
G01R13/00; G01R23/16; G01R23/167; H03H17/02; H03H17/08; (IPC1-7): G01R13/20
Domestic Patent References:
| JP10260066A |
Attorney, Agent or Firm:
Nagase Seijo