JPS5624590A - Underground water level measuring apparatus - Google Patents
Underground water level measuring apparatusInfo
- Publication number
- JPS5624590A JPS5624590A JP9998079A JP9998079A JPS5624590A JP S5624590 A JPS5624590 A JP S5624590A JP 9998079 A JP9998079 A JP 9998079A JP 9998079 A JP9998079 A JP 9998079A JP S5624590 A JPS5624590 A JP S5624590A
- Authority
- JP
- Japan
- Prior art keywords
- underground water
- level
- circuit
- pulses
- heighten
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title abstract 7
- 239000003990 capacitor Substances 0.000 abstract 1
- 230000004069 differentiation Effects 0.000 abstract 1
- 238000007598 dipping method Methods 0.000 abstract 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A90/00—Technologies having an indirect contribution to adaptation to climate change
- Y02A90/30—Assessment of water resources
Landscapes
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
- Geophysics And Detection Of Objects (AREA)
Abstract
PURPOSE: To heighten the measuring accuracy without increase in the number of electric wires by connecting a plurality of resistors connected to one end of respective electrodes arranged vertically at a fixed space to each input side of the water level measuring circuit.
CONSTITUTION: As the level of the underground water in the drilled hole 1 rises gradually to the ground surface H, the electrodes 4i,...,4n are dipped by the conductive underground water in order and each time such dipping of the electrode takes places, the resistors ri, ri+1,...,rn are short-circuited one by one, and thus, the voltage developing across a resister R rises by steps. As a result, pulses such as positive one are generated from a differentiation circuit 7 comprising a capacitor C and a resistance r. The number of the pulses is added by an addition circuit 8 and the output signal corresponding to the rise in the underground water is inputted into a recorder 9 and an indicator 10 which converts the signal inputted into the measured value corresponding to the level of the underground water. On the other hand, when the level of the underground water falls, negative pulses are generated from the circuit 7. This can heighten the measuring accuracy without increase in the number of electric wires for the measuring circuit.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9998079A JPS5624590A (en) | 1979-08-06 | 1979-08-06 | Underground water level measuring apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9998079A JPS5624590A (en) | 1979-08-06 | 1979-08-06 | Underground water level measuring apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5624590A true JPS5624590A (en) | 1981-03-09 |
Family
ID=14261806
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9998079A Pending JPS5624590A (en) | 1979-08-06 | 1979-08-06 | Underground water level measuring apparatus |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5624590A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62186308U (en) * | 1986-05-16 | 1987-11-27 | ||
| JPH11108735A (en) * | 1997-10-03 | 1999-04-23 | Nitta Ind Corp | Water level sensor |
| JP2016085048A (en) * | 2014-10-23 | 2016-05-19 | 基礎地盤コンサルタンツ株式会社 | Water level examination method for underground water |
| CN111189507A (en) * | 2020-03-10 | 2020-05-22 | 黄河勘测规划设计研究院有限公司 | Karst water stratification discrimination and underground water level observation method |
| CN112253256A (en) * | 2020-11-26 | 2021-01-22 | 安徽省煤田地质局勘查研究院 | Mine ground drilling non-sleeve multi-aquifer underground water level monitoring system |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5163651A (en) * | 1974-11-30 | 1976-06-02 | Omron Tateisi Electronics Co | EKITAIREBERUKENS HUTSUSOCHI |
-
1979
- 1979-08-06 JP JP9998079A patent/JPS5624590A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5163651A (en) * | 1974-11-30 | 1976-06-02 | Omron Tateisi Electronics Co | EKITAIREBERUKENS HUTSUSOCHI |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62186308U (en) * | 1986-05-16 | 1987-11-27 | ||
| JPH11108735A (en) * | 1997-10-03 | 1999-04-23 | Nitta Ind Corp | Water level sensor |
| JP2016085048A (en) * | 2014-10-23 | 2016-05-19 | 基礎地盤コンサルタンツ株式会社 | Water level examination method for underground water |
| CN111189507A (en) * | 2020-03-10 | 2020-05-22 | 黄河勘测规划设计研究院有限公司 | Karst water stratification discrimination and underground water level observation method |
| CN111189507B (en) * | 2020-03-10 | 2021-05-25 | 黄河勘测规划设计研究院有限公司 | Karst water stratification discrimination and underground water level observation method |
| CN112253256A (en) * | 2020-11-26 | 2021-01-22 | 安徽省煤田地质局勘查研究院 | Mine ground drilling non-sleeve multi-aquifer underground water level monitoring system |
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