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Title:
HUMIDITY SENSOR AND AIR CONDITIONER
Document Type and Number:
WIPO Patent Application WO/2021/224954
Kind Code:
A1
Abstract:
A humidity sensor comprising an acoustic wave element for transmitting an acoustic wave and receiving an acoustic wave reflected from a reflector, a receiving circuit for determining the arrival time of the reflected wave that is received by the acoustic wave element, and a humidity analysis circuit for calculating a humidity by using the arrival time, a distance from the acoustic wave element to the reflector, and the humidity of a space from the acoustic wave element to the reflector.

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Inventors:
HON JINI (JP)
MORIKAWA AKIRA (JP)
KATSUMATA NORIAKI (JP)
Application Number:
PCT/JP2020/018496
Publication Date:
November 11, 2021
Filing Date:
May 07, 2020
Export Citation:
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Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
G01N29/024
Foreign References:
JP2012225756A2012-11-15
JPH0894594A1996-04-12
JP2018141596A2018-09-13
US20180217008A12018-08-02
JPH0726759U1995-05-19
Other References:
See also references of EP 4141438A4
Attorney, Agent or Firm:
KISA PATENT & TRADEMARK FIRM (JP)
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