Title:
THERMAL HUMIDITY MEASURING DEVICE
Document Type and Number:
WIPO Patent Application WO/2018/037721
Kind Code:
A1
Abstract:
The objective of the present invention is to provide a thermal humidity measuring device which is provided with a first heat generating body and a second heat generating body, and which is configured to utilize the heat generating bodies effectively in such a way as to obtain a plurality of measured values (measurement values) including a humidity measured using the first heat generating body.
A thermal humidity measuring device (1) is provided with a first bridge circuit (2) including a first heat generating body (4) which detects humidity, and a second bridge circuit (3) including a second heat generating body (10) which heats air around the first heat generating body (4). Humidity is detected by extracting a first output signal (Va5) from the first bridge circuit (2), and a second output signal (Va15) including one item of information from among at least pressure, an air flow rate or an air temperature is extracted from the second bridge circuit (3).
Inventors:
ANDO RYO (JP)
ONUKI HIROSHI (JP)
NAKANO HIROSHI (JP)
HOSOKAWA TAKEO (JP)
HIO MASAYUKI (JP)
KOMATSU SHIGENOBU (JP)
ONUKI HIROSHI (JP)
NAKANO HIROSHI (JP)
HOSOKAWA TAKEO (JP)
HIO MASAYUKI (JP)
KOMATSU SHIGENOBU (JP)
Application Number:
PCT/JP2017/024429
Publication Date:
March 01, 2018
Filing Date:
July 04, 2017
Export Citation:
Assignee:
HITACHI AUTOMOTIVE SYSTEMS LTD (JP)
International Classes:
G01N25/64; G01F1/696; G01K7/24
Foreign References:
| JP2011137679A | 2011-07-14 | |||
| JPH10104183A | 1998-04-24 | |||
| JP2011099757A | 2011-05-19 | |||
| JPH07113777A | 1995-05-02 | |||
| US4966037A | 1990-10-30 |
Attorney, Agent or Firm:
TODA Yuji (JP)
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