JPS5624590A - Underground water level measuring apparatus - Google Patents

Underground water level measuring apparatus

Info

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
Application number
JP9998079A
Other languages
Japanese (ja)
Inventor
Masajiro Misawa
Mamoru Tagawa
Toshinao Fujimura
Wataru Arai
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CHISHITSU KEISOKU KK
Original Assignee
CHISHITSU KEISOKU KK
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by CHISHITSU KEISOKU KK filed Critical CHISHITSU KEISOKU KK
Priority to JP9998079A priority Critical patent/JPS5624590A/en
Publication of JPS5624590A publication Critical patent/JPS5624590A/en
Pending legal-status Critical Current

Links

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

  • Geophysics And Detection Of Objects (AREA)
  • Measurement Of Levels Of Liquids Or Fluent Solid Materials (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
JP9998079A 1979-08-06 1979-08-06 Underground water level measuring apparatus Pending JPS5624590A (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5163651A (en) * 1974-11-30 1976-06-02 Omron Tateisi Electronics Co EKITAIREBERUKENS HUTSUSOCHI

Patent Citations (1)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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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