FR1197170A - Self-contained single-battery device for ph measurement - Google Patents

Self-contained single-battery device for ph measurement

Info

Publication number
FR1197170A
FR1197170A FR1197170DA FR1197170A FR 1197170 A FR1197170 A FR 1197170A FR 1197170D A FR1197170D A FR 1197170DA FR 1197170 A FR1197170 A FR 1197170A
Authority
FR
France
Prior art keywords
self
measurement
battery device
contained single
contained
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.)
Expired
Application number
Other languages
French (fr)
Inventor
Roger Constant
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.)
Prolabo SA
Original Assignee
Prolabo SA
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 Prolabo SA filed Critical Prolabo SA
Application granted granted Critical
Publication of FR1197170A publication Critical patent/FR1197170A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R17/00—Measuring arrangements involving comparison with a reference value, e.g. bridge
    • G01R17/10—AC or DC measuring bridges
    • G01R17/16—AC or DC measuring bridges with discharge tubes or semiconductor devices in one or more arms of the bridge, e.g. voltmeter using a difference amplifier

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR1197170D 1958-05-27 1958-05-27 Self-contained single-battery device for ph measurement Expired FR1197170A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1197170T 1958-05-27

Publications (1)

Publication Number Publication Date
FR1197170A true FR1197170A (en) 1959-11-27

Family

ID=9669557

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1197170D Expired FR1197170A (en) 1958-05-27 1958-05-27 Self-contained single-battery device for ph measurement

Country Status (1)

Country Link
FR (1) FR1197170A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4998068A (en) * 1989-05-16 1991-03-05 In-Situ, Inc. Bias current control for providing accurate potentiometric measurements

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4998068A (en) * 1989-05-16 1991-03-05 In-Situ, Inc. Bias current control for providing accurate potentiometric measurements

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