Title:
THERMOACOUSTIC DEVICE AND ACOUSTIC INSPECTION DEVICE
Document Type and Number:
WIPO Patent Application WO/2018/146951
Kind Code:
A1
Abstract:
Provided are a thermoacoustic device and acoustic inspection device having a heating element that has relatively high strength and also has a relatively large degree of freedom of design. A thermoacoustic device according to one aspect of this invention is equipped with a heating element formed from a nonwoven sheet containing a fibrous carbon nanostructure. The heating element preferably has a three-dimensional shape. The heating element is preferably formed by folding the nonwoven sheet. The thermoacoustic device may be further equipped with a plurality of electrodes for applying a current to the heating element. The thermoacoustic device may be equipped with three or more electrodes and two or more heating elements. The thermoacoustic device may be further equipped with a heating device for irradiating the heating element with light or electromagnetic waves. An acoustic inspection device according to one aspect of this invention is provided with the thermoacoustic device and an acoustic receiving element.
Inventors:
HATTORI ATSUO (JP)
Application Number:
PCT/JP2017/045560
Publication Date:
August 16, 2018
Filing Date:
December 19, 2017
Export Citation:
Assignee:
YAMAHA FINE TECH CO LTD (JP)
International Classes:
H04R23/00; G01N29/24; G01N29/26
Foreign References:
| JP2012205198A | 2012-10-22 | |||
| JP2012209923A | 2012-10-25 |
Attorney, Agent or Firm:
AMANO Kazunori (JP)
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