ES389797A1 - Apparatus for producing an electrical signal related to the con centration of a solution - Google Patents

Apparatus for producing an electrical signal related to the con centration of a solution

Info

Publication number
ES389797A1
ES389797A1 ES389797A ES389797A ES389797A1 ES 389797 A1 ES389797 A1 ES 389797A1 ES 389797 A ES389797 A ES 389797A ES 389797 A ES389797 A ES 389797A ES 389797 A1 ES389797 A1 ES 389797A1
Authority
ES
Spain
Prior art keywords
solution
screen
reflected beam
producing
electrical signal
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
ES389797A
Other languages
Spanish (es)
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.)
Societe dOptique Precision Electronique et Mecanique SOPELEM SA
Original Assignee
Societe dOptique Precision Electronique et Mecanique SOPELEM 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 Societe dOptique Precision Electronique et Mecanique SOPELEM SA filed Critical Societe dOptique Precision Electronique et Mecanique SOPELEM SA
Publication of ES389797A1 publication Critical patent/ES389797A1/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/41—Refractivity; Phase-affecting properties, e.g. optical path length
    • G01N21/43—Refractivity; Phase-affecting properties, e.g. optical path length by measuring critical angle

Abstract

A device for measuring and signaling the concentration of a solution, which uses the total refraction of a light beam on the flat face of a prism in contact with the solution, and in which an optical image of the separator is formed on a screen forming the boundary of the reflected beam, characterized by the fact that the screen carries a graduated scale parallel to the plane of displacement of the reflected beam and by the fact that the device includes a movable assembly movable parallel to the screen and in a parallel direction to the plane of displacement of the reflected beam, this mobile assembly carrying two photoelectric cells whose sensitive parts are arranged in front of the screen, the two cells being connected to an electronic amplifier and comparator assembly. (Machine-translation by Google Translate, not legally binding)
ES389797A 1970-06-23 1971-04-01 Apparatus for producing an electrical signal related to the con centration of a solution Expired ES389797A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7023157A FR2094486A5 (en) 1970-06-23 1970-06-23

Publications (1)

Publication Number Publication Date
ES389797A1 true ES389797A1 (en) 1973-06-01

Family

ID=9057639

Family Applications (1)

Application Number Title Priority Date Filing Date
ES389797A Expired ES389797A1 (en) 1970-06-23 1971-04-01 Apparatus for producing an electrical signal related to the con centration of a solution

Country Status (5)

Country Link
DE (1) DE2120421C3 (en)
ES (1) ES389797A1 (en)
FR (1) FR2094486A5 (en)
GB (1) GB1308870A (en)
NL (1) NL170332C (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2500930B1 (en) * 1980-11-14 1985-12-06 Sopelem REFRACTOMETER USING THE LIMIT ANGLE METHOD
FR2536537A1 (en) * 1982-11-22 1984-05-25 Alexandre Laugier Method and refractometer for measuring the refractive index of a liquid and application to the measurement of the alcoholic strength of a must

Also Published As

Publication number Publication date
GB1308870A (en) 1973-03-07
NL170332B (en) 1982-05-17
DE2120421C3 (en) 1974-03-28
FR2094486A5 (en) 1972-02-04
NL170332C (en) 1982-10-18
DE2120421B2 (en) 1973-08-16
DE2120421A1 (en) 1971-12-30
NL7105765A (en) 1971-12-27

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