发明授权
- 专利标题： Device for measuring water level by using capacitive technique, and method therefor
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申请号： US17257308申请日： 2020-03-26
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公开(公告)号： US11326924B2公开(公告)日： 2022-05-10
- 发明人: Dong Sop Rhee
- 申请人： Korea Institute of Civil Engineering and Building Technology
- 申请人地址： KR Goyang-si
- 专利权人： Korea Institute of Civil Engineering and Building Technology
- 当前专利权人： Korea Institute of Civil Engineering and Building Technology
- 当前专利权人地址： KR Goyang-si
- 优先权： KR10-2019-0036758 20190329
- 国际申请： PCT/KR2020/004114 WO 20200326
- 国际公布： WO2020/204462 WO 20201008
- 主分类号： G01F23/263
- IPC分类号： G01F23/263
摘要：
Disclosed in one embodiment are a device for measuring water level by using a capacitive technique, and a method therefor. A device for measuring water level comprises: an electrode unit which includes a first electrode and a second electrode arranged in parallel in a lengthwise direction, and which allow voltages to be applied to the first electrode and the second electrode; and a control unit for measuring the applied voltages, calculating the amount of reference charging time it takes to reach a second voltage from a predetermined first voltage on the basis of the measured voltages, and determining water level on the basis of the calculated reference charging time.