Title:
MOISTURE DETECTION DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/053895
Kind Code:
A1
Abstract:
A moisture detection device (1) comprises: a case (11); a light projection unit that is disposed in the case (11) and that projects, to an illumination region (A2) outside the case (11), detection light at a wavelength included in the absorption wavelength band of water; a light reception unit that is disposed in the case (11) and that receives the detection light that has passed through a leaf (LF) present in the illumination region (A2); and a moisture quantity calculation unit that calculates the amount of moisture in the leaf (LF) on the basis of a detection signal based on the detection light from the light reception unit. The light projection unit additionally emits visible guide light to a detection region (A1) within the illumination region (A2).
Inventors:
ITOH TATSUO
FURUYA HIROYUKI
TERASHIMA YUUJI
FURUYA HIROYUKI
TERASHIMA YUUJI
Application Number:
PCT/JP2020/022419
Publication Date:
March 25, 2021
Filing Date:
June 05, 2020
Export Citation:
Assignee:
PANASONIC IP MAN CO LTD (JP)
International Classes:
G01N21/3554
Foreign References:
| US20180143073A1 | 2018-05-24 | |||
| JP2019148454A | 2019-09-05 | |||
| CN101975759A | 2011-02-16 | |||
| JPH0688749A | 1994-03-29 | |||
| JP2017083425A | 2017-05-18 | |||
| US20180059014A1 | 2018-03-01 | |||
| US20190154573A1 | 2019-05-23 | |||
| US20180202927A1 | 2018-07-19 |
Attorney, Agent or Firm:
SHIBANO, Masanori et al. (JP)
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