JP6132961B1 - 水位計測装置 - Google Patents
水位計測装置 Download PDFInfo
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- JP6132961B1 JP6132961B1 JP2016107425A JP2016107425A JP6132961B1 JP 6132961 B1 JP6132961 B1 JP 6132961B1 JP 2016107425 A JP2016107425 A JP 2016107425A JP 2016107425 A JP2016107425 A JP 2016107425A JP 6132961 B1 JP6132961 B1 JP 6132961B1
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- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
Abstract
Description
Claims (5)
- 複数の電極が水位方向に所定の間隔で相互に離間かつ計測範囲の一部が重なるように配置された電極部と、
計測対象の電極を選択する手段と、
選択された電極へ駆動電圧を印加して蓄積された電荷量を計測する手段と、
重なった計測範囲に水位がある一対の電極ごとに、各電極中心から水位までの距離に応じて各計測値の重み付けを決定する手段と、
前記一対の電極ごとに計測された電荷量の前記重み付け平均値を出力する手段とを具備したことを特徴とする水位計測装置。 - 前記重み付けを決定する手段は、重なった計測範囲に水位がある一対の電極ごとに、各電極中心から水位までの距離が、より近い電極の計測値をより重くすることを特徴とする請求項1に記載の水位計測装置。
- 前記計測する手段と各電極との配線長の差に起因した浮遊容量の差分を解消する手段をさらに具備したことを特徴とする請求項1または2に記載の水位計測装置。
- 前記浮遊容量の差分を解消する手段は、計測値の増幅ゲインを調整することを特徴とする請求項3に記載の水位計測装置。
- 前記浮遊容量の差分を解消する手段は、各電極へ印加する駆動電圧の周波数を調整することを特徴とする請求項3に記載の水位計測装置。
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JP2016107425A JP6132961B1 (ja) | 2016-05-30 | 2016-05-30 | 水位計測装置 |
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JP2016107425A JP6132961B1 (ja) | 2016-05-30 | 2016-05-30 | 水位計測装置 |
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JP6132961B1 true JP6132961B1 (ja) | 2017-05-24 |
JP2017215160A JP2017215160A (ja) | 2017-12-07 |
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Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
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WO2020103673A1 (zh) * | 2018-11-20 | 2020-05-28 | 伊玛精密电子(苏州)有限公司 | 一种智能型料位传感器 |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60192228A (ja) * | 1984-03-14 | 1985-09-30 | Tokyo Tatsuno Co Ltd | 液深測定用電極 |
JPS61202122A (ja) * | 1985-03-06 | 1986-09-06 | Tokyo Tatsuno Co Ltd | 液位液量測定装置 |
JPH11311562A (ja) * | 1998-04-27 | 1999-11-09 | Wako:Kk | 水位センサ |
US20040118203A1 (en) * | 2001-02-23 | 2004-06-24 | Heger Charles E. | Wireless swimming pool water level system |
JP2007040753A (ja) * | 2005-08-01 | 2007-02-15 | Yazaki Corp | 液面レベルセンサ |
JP5664217B2 (ja) * | 2010-12-24 | 2015-02-04 | 富士通株式会社 | 水位計および水位計測方法 |
JP5688731B2 (ja) * | 2010-12-10 | 2015-03-25 | 国立大学法人徳島大学 | 静電容量型水分計および水位計 |
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2016
- 2016-05-30 JP JP2016107425A patent/JP6132961B1/ja active Active
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60192228A (ja) * | 1984-03-14 | 1985-09-30 | Tokyo Tatsuno Co Ltd | 液深測定用電極 |
JPS61202122A (ja) * | 1985-03-06 | 1986-09-06 | Tokyo Tatsuno Co Ltd | 液位液量測定装置 |
JPH11311562A (ja) * | 1998-04-27 | 1999-11-09 | Wako:Kk | 水位センサ |
US20040118203A1 (en) * | 2001-02-23 | 2004-06-24 | Heger Charles E. | Wireless swimming pool water level system |
JP2007040753A (ja) * | 2005-08-01 | 2007-02-15 | Yazaki Corp | 液面レベルセンサ |
JP5688731B2 (ja) * | 2010-12-10 | 2015-03-25 | 国立大学法人徳島大学 | 静電容量型水分計および水位計 |
JP5664217B2 (ja) * | 2010-12-24 | 2015-02-04 | 富士通株式会社 | 水位計および水位計測方法 |
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