Title:
WATER LEVEL DETECTION DEVICE AND HUMIDIFICATION DEVICE
Document Type and Number:
WIPO Patent Application WO/2020/032055
Kind Code:
A1
Abstract:
This water level detection device is capable of detecting a water level more accurately than conventional products. In a range sensor (10), a light-emitting part (110) emits detection light (L1) to a prescribed position on the surface of water in a water storage tray (90). A light-receiving part (120) receives reflection light (L2) of the detection light (L1) reflected at the prescribed position. A first control unit (15) calculates, on the basis of the detection light (L1) and the reflection light (L2), a water level detection value which is a value of the water level detected in the water storage tray (90). The first control unit (15) further corrects the water level detection value in accordance with the rate of air flow in the water storage tray (90).
Inventors:
MORITA KOHEI
Application Number:
PCT/JP2019/030958
Publication Date:
February 13, 2020
Filing Date:
August 06, 2019
Export Citation:
Assignee:
SHARP KK (JP)
International Classes:
G01F23/292; F24F6/00
Foreign References:
| JP2012145477A | 2012-08-02 |
Attorney, Agent or Firm:
HARAKENZO WORLD PATENT & TRADEMARK (JP)
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