JPS5520439A - Correction unit of water quality sensor - Google Patents
Correction unit of water quality sensorInfo
- 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
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
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 (2)
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 |
-
1978
- 1978-07-31 JP JP9340378A patent/JPS5520439A/en active Granted
Cited By (3)
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 |
Also Published As
Publication number | Publication date |
---|---|
JPS6133131B2 (en) | 1986-07-31 |
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