ES389797A1 - Dispositivo de medicion y de senalizacion de la concentra- cion de una solucion. - Google Patents

Dispositivo de medicion y de senalizacion de la concentra- cion de una solucion.

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
English (en)
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/es
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

Landscapes

  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
ES389797A 1970-06-23 1971-04-01 Dispositivo de medicion y de senalizacion de la concentra- cion de una solucion. Expired ES389797A1 (es)

Applications Claiming Priority (1)

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

Publications (1)

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

Family

ID=9057639

Family Applications (1)

Application Number Title Priority Date Filing Date
ES389797A Expired ES389797A1 (es) 1970-06-23 1971-04-01 Dispositivo de medicion y de senalizacion de la concentra- cion de una solucion.

Country Status (5)

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

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2500930B1 (fr) * 1980-11-14 1985-12-06 Sopelem Refractometre utilisant la methode de l'angle limite
FR2536537A1 (fr) * 1982-11-22 1984-05-25 Alexandre Laugier Procede et refractometre pour mesurer l'indice de refraction d'un liquide et application a la mesure du titre alcoometrique en puissance d'un mout

Also Published As

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

Similar Documents

Publication Publication Date Title
CA1146741B (en) Auto-focus camera with solid state range finder
AT349786B (de) Vorrichtung an optischen geraeten - ins- besondere an mikroskopen - zum selbsttaetigen scharf-einstellen auf zu betrachtende objekte
ES458594A1 (es) Aparato transductor aplicado en la deteccion foto-optica de cambios de posicion de un elemento.
GB1189661A (en) Improvements in or relating to Photographic Apparatus.
FR2304924A1 (fr) Disposition de circuit pour evaluer des signaux, notamment des signaux de sortie de dispositifs optiques de mesure
GB1307398A (en) Web inspection system
ES389797A1 (es) Dispositivo de medicion y de senalizacion de la concentra- cion de una solucion.
ES460838A1 (es) Transductor compuesto para la medicion de condiciones fisi- cas.
US2470877A (en) Method and apparatus for detecting variations in the appearance of an object or sample
GB1121122A (en) Improvements in methods of and apparatus for measuring the ovality of an object
GB1327231A (en) Fire detecting apparatus
JPS51128095A (en) Device for measuring abrasion of grind-stone
JPS51134131A (en) Timing device for exposure/discharge switchover of sensitive plate of electronic duplicator
ES342568A1 (es) Dispositivo de deteccion y de medicion de desplazamientos muy pequenos.
SU844996A1 (ru) Устройство дл измерени перемещений
ES301893A1 (es) Aparato para medir la temperatura por radiacion.
SU584179A1 (ru) Устройство дл измерени линейных размеров
ES379587A1 (es) Procedimiento y aparato para la medida de pequenos despla- zamientos relativos entre dos cuerpos.
BE758087A (fr) Perfectionnements aux appareils de mesure optique de precision
FR2226644A1 (en) Optical measurement of displacement - uses electronic circuits eliminating lighting effects enabling use of stroboscopic lighting
SE334246B (enExample)
SU135234A1 (ru) Двухкоординатный оптический окул рный микрометр
FR1445571A (fr) Dispositif électronique de mesure de très faibles déplacements
CH612501A5 (en) Optoelectronic device for measuring a dimensional variation or the displacement of an object
GB816723A (en) Improvements in or relating to devices for measuring the displacement of a movable member relative to a stationary member