Title:
ACOUSTIC MEASUREMENT SYSTEM AND PARAMETER GENERATION DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/123633
Kind Code:
A1
Abstract:
A sound generator (5) is provided near equipment (4) to be examined that is an object to be measured. A measurement unit (6) acquires a measurement signal received by a sound receiver (2) by causing a test signal, which is a series of unit signals aligned along a time axis, to propagate from the sound generator (5) to the sound receiver (2), said unit signals having one frequency component for each time with the central frequency in the frequency component changing over time. An estimation unit (7) estimates the propagation properties of sound from the sound generator (5) to the sound receiver (2) on the basis of the relationship between the time and the intensity of the unit signal.
Inventors:
ABE YOSHIHARU (JP)
Application Number:
PCT/JP2017/046138
Publication Date:
June 27, 2019
Filing Date:
December 22, 2017
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
G10K15/00; B66B3/00; G10K15/02; H04R29/00
Foreign References:
| JPH0795684A | 1995-04-07 | |||
| JP2004239927A | 2004-08-26 | |||
| JP2004193782A | 2004-07-08 | |||
| JP2007121795A | 2007-05-17 | |||
| JP2013095554A | 2013-05-20 |
Attorney, Agent or Firm:
TAZAWA, Hideaki et al. (JP)
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