Title:
LIQUID LEVEL METER AND MEASURING METHOD THEREFOR, AND SPRAYING ASSEMBLY AND UNMANNED AERIAL VEHICLE
Document Type and Number:
WIPO Patent Application WO/2021/237582
Kind Code:
A1
Abstract:
A liquid level meter (10), comprising a fixed magnet (200), a moving magnet (300), and a detector (100). The fixed magnet (200) is fixed at the bottom of a liquid storage device (700). The moving magnet (300) is provided in the liquid storage device (700), and configured to move with the change of storage liquid level. The detector (100) is configured to detect the positions of the fixed magnet (200) and the moving magnet (300), to obtain the storage liquid level. Regardless of the change in the relative positions of the detector (100) and the liquid storage device (700), the liquid level meter (10) can obtain the accurate measurement result according to the position of the fixed magnet (200) and the position of the moving magnet (300). Also provided are a method for measuring a liquid level meter (10), a spraying assembly (20), and an unmanned aerial vehicle (30).
Inventors:
WU FAN (CN)
SHU ZHAN (CN)
CHANG ZIJING (CN)
HU DEQI (CN)
SHU ZHAN (CN)
CHANG ZIJING (CN)
HU DEQI (CN)
Application Number:
PCT/CN2020/092971
Publication Date:
December 02, 2021
Filing Date:
May 28, 2020
Export Citation:
Assignee:
SZ DJI TECHNOLOGY CO LTD (CN)
International Classes:
G01F23/74; G01F23/72
Foreign References:
| US20060169039A1 | 2006-08-03 | |||
| CN207585725U | 2018-07-06 | |||
| CN207991649U | 2018-10-19 | |||
| CN212059011U | 2020-12-01 | |||
| CN102171547A | 2011-08-31 | |||
| US20060266113A1 | 2006-11-30 | |||
| JP2002071431A | 2002-03-08 |
Attorney, Agent or Firm:
CHINA SCIENCE PATENT & TRADEMARK AGENT LTD. (CN)
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