Title:
AUTOMATIC PH CONTROLLER
Document Type and Number:
Japanese Patent JP3289290
Kind Code:
B2
Abstract:
PURPOSE: To automatically measure and control the pH for a long period of time with high accuracy by means of a pH sensor.
CONSTITUTION: An automatic pH controller is provided with a pH sensor 25 together with a controller which controls the pH value at a prescribed level based on the pH value measured by the sensor 25 and with dropping of a pH control solution, a robot hand which moves the sensor 25, a pH correction liquid tank, a sensor washing tank, and the porous urethane 26 which drains the tip of the sensor 25.
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Inventors:
Tetsuo Fukushima
Kazuhisa Ogasawara
Kenichiro Suetsugu
Kazuhisa Ogasawara
Kenichiro Suetsugu
Application Number:
JP24883991A
Publication Date:
June 04, 2002
Filing Date:
September 27, 1991
Export Citation:
Assignee:
Matsushita Electric Industrial Co., Ltd
International Classes:
G05D21/00; G01N27/26; G01N27/38; G01N27/416; (IPC1-7): G01N27/26; G01N27/38; G01N27/416; G05D21/00
Domestic Patent References:
| JP64119787A | ||||
| JP6131959A | ||||
| JP54103093A | ||||
| JP499064U | ||||
| JP5941756U | ||||
| JP59168155U | ||||
| JP5332794U | ||||
| JP52116985U | ||||
| JP513393U | ||||
| JP50991U | ||||
| JP487093U | ||||
| JP3516835B1 |
Attorney, Agent or Firm:
Fumio Iwahashi (2 others)
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