JPS5520439A - Correction unit of water quality sensor - Google Patents

Correction unit of water quality sensor

Info

Publication number
JPS5520439A
JPS5520439A JP9340378A JP9340378A JPS5520439A JP S5520439 A JPS5520439 A JP S5520439A JP 9340378 A JP9340378 A JP 9340378A JP 9340378 A JP9340378 A JP 9340378A JP S5520439 A JPS5520439 A JP S5520439A
Authority
JP
Japan
Prior art keywords
water quality
quality sensor
correcting
sensor
deterioration
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.)
Granted
Application number
JP9340378A
Other languages
Japanese (ja)
Other versions
JPS6133131B2 (en
Inventor
Nobuyuki Muraoka
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co Ltd
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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP9340378A priority Critical patent/JPS5520439A/en
Publication of JPS5520439A publication Critical patent/JPS5520439A/en
Publication of JPS6133131B2 publication Critical patent/JPS6133131B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)

Abstract

PURPOSE: To make the life of a water quality sensor long and reduce exchange frequency by using a correcting liquid to detect the deterioration of the characteristic of the water quality sensor and correcting the deterioration by an electronic circuit.
CONSTITUTION: Dirt stuck to normal measuring water quality sensor 12 is washed away by a washing liquid. Then, in respect to the characteristic deterioration of the sensor which is not restored by washing, a zero correcting liquid and a span correcting liquid are given to correcting water quality sensor 23 and normal measuring sensor 12 under the same condition to perform measurement. Signals e1 and e2 obtained by respective sensors are used to obtain a zero point drift by, for example, correcting electronic circuit 30, and further, span adjustment is performed. Consequently, the trouble-some to exchange normal measuring water quality sensor 12 for very characteristic deterioration can be avoided, and the life of sensor 12 can be made long.
COPYRIGHT: (C)1980,JPO&Japio
JP9340378A 1978-07-31 1978-07-31 Correction unit of water quality sensor Granted JPS5520439A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9340378A JPS5520439A (en) 1978-07-31 1978-07-31 Correction unit of water quality sensor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9340378A JPS5520439A (en) 1978-07-31 1978-07-31 Correction unit of water quality sensor

Publications (2)

Publication Number Publication Date
JPS5520439A true JPS5520439A (en) 1980-02-13
JPS6133131B2 JPS6133131B2 (en) 1986-07-31

Family

ID=14081324

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9340378A Granted JPS5520439A (en) 1978-07-31 1978-07-31 Correction unit of water quality sensor

Country Status (1)

Country Link
JP (1) JPS5520439A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2018506713A (en) * 2015-01-12 2018-03-08 エコラブ ユーエスエイ インク Apparatus, system, and method for maintaining sensor accuracy
WO2018179494A1 (en) * 2017-03-27 2018-10-04 栗田工業株式会社 Water quality measurement device
JP2023011301A (en) * 2021-07-12 2023-01-24 オルガノ株式会社 Automatic calibration method for resistivity meter

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2018506713A (en) * 2015-01-12 2018-03-08 エコラブ ユーエスエイ インク Apparatus, system, and method for maintaining sensor accuracy
WO2018179494A1 (en) * 2017-03-27 2018-10-04 栗田工業株式会社 Water quality measurement device
JPWO2018179494A1 (en) * 2017-03-27 2020-02-06 栗田工業株式会社 Water quality measurement device
JP2023011301A (en) * 2021-07-12 2023-01-24 オルガノ株式会社 Automatic calibration method for resistivity meter

Also Published As

Publication number Publication date
JPS6133131B2 (en) 1986-07-31

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