RO83228B1 - Ph measuring apparatus - Google Patents

Ph measuring apparatus

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Publication number
RO83228B1
RO83228B1 RO109679A RO10967983A RO83228B1 RO 83228 B1 RO83228 B1 RO 83228B1 RO 109679 A RO109679 A RO 109679A RO 10967983 A RO10967983 A RO 10967983A RO 83228 B1 RO83228 B1 RO 83228B1
Authority
RO
Romania
Prior art keywords
continuous
resistors
electrodes
well
differential stage
Prior art date
Application number
RO109679A
Other languages
Romanian (ro)
Other versions
RO83228A2 (en
Inventor
Niculae Constantin Florescu
Original Assignee
Niculae Constantin Florescu
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 Niculae Constantin Florescu filed Critical Niculae Constantin Florescu
Priority to RO109679A priority Critical patent/RO83228B1/en
Publication of RO83228A2 publication Critical patent/RO83228A2/en
Publication of RO83228B1 publication Critical patent/RO83228B1/en

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Abstract

Inventia se refera la un aparat pentru masurarea pH-ului unei solutii apoase, care poate fi utilizat si pentru masurarea de tensiuni continue. Aparatul, conform inventiei, cuprinde un etaj diferential de intrare foarte mare, intrarea etajului diferential fiind comutabila la doua circuite electrice independente de reglare a zeroului pentru masurari de pH si, respectiv, pentru masurari de tensiune continua, un etaj de amplificare comutabil, care realizeaza compensarea manuala a variatiei pantei electrozilor de pH cu temperatura, prin intermediul unor rezistente si al unui potentiometru precum si compensarea ei automata cu ajutorul unor rezistente pentru masuri de tensiuni continue, îndeplinind numai functia de amplificator, cu ajutorul unor rezistente cuplate în bucla de reactie, un etaj de reglare a pantei electrozilor de pH, precum si un etaj de deplasare a nivelului tensiunii continue într-unul potrivit pentru un convertor analog numeric, folosit la afisarea rezultatului masuratorii. The invention relates to an apparatus for measuring the pH of an aqueous solution, which can also be used to measure continuous voltages. According to the invention, the apparatus comprises a very large entry-level differential stage, the input of the differential stage being switched to two independent zero-regulating electric circuits for pH and continuous-voltage measurements, a switching amplifier stage, manual compensation of pH variation of the pH electrodes with the temperature by means of resistors and a potentiometer as well as its automatic compensation by means of resistors for continuous voltage measures fulfilling only the amplifier function by means of resistors coupled in the reaction loop, a pH adjustment pitch of the pH electrodes, as well as a continuous voltage shift level in a suitable one for a numerical analog converter used to display the measurement result.

RO109679A 1983-01-11 1983-01-11 Ph measuring apparatus RO83228B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RO109679A RO83228B1 (en) 1983-01-11 1983-01-11 Ph measuring apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RO109679A RO83228B1 (en) 1983-01-11 1983-01-11 Ph measuring apparatus

Publications (2)

Publication Number Publication Date
RO83228A2 RO83228A2 (en) 1984-04-12
RO83228B1 true RO83228B1 (en) 1984-05-30

Family

ID=20112528

Family Applications (1)

Application Number Title Priority Date Filing Date
RO109679A RO83228B1 (en) 1983-01-11 1983-01-11 Ph measuring apparatus

Country Status (1)

Country Link
RO (1) RO83228B1 (en)

Also Published As

Publication number Publication date
RO83228A2 (en) 1984-04-12

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