GB1239614A - - Google Patents

Info

Publication number
GB1239614A
GB1239614A GB1239614DA GB1239614A GB 1239614 A GB1239614 A GB 1239614A GB 1239614D A GB1239614D A GB 1239614DA GB 1239614 A GB1239614 A GB 1239614A
Authority
GB
United Kingdom
Prior art keywords
photo
sept
semi
housing
head
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
English (en)
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
Priority claimed from DE19671614865 external-priority patent/DE1614865A1/de
Application filed filed Critical
Publication of GB1239614A publication Critical patent/GB1239614A/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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
    • G01F23/22—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
    • G01F23/28—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring the variations of parameters of electromagnetic or acoustic waves applied directly to the liquid or fluent solid material
    • G01F23/284—Electromagnetic waves
    • G01F23/292—Light, e.g. infrared or ultraviolet
    • G01F23/2921—Light, e.g. infrared or ultraviolet for discrete levels
    • G01F23/2922—Light, e.g. infrared or ultraviolet for discrete levels with light-conducting sensing elements, e.g. prisms
    • G01F23/2925—Light, e.g. infrared or ultraviolet for discrete levels with light-conducting sensing elements, e.g. prisms using electrical detecting means

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • General Health & Medical Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Health & Medical Sciences (AREA)
  • Thermal Sciences (AREA)
  • Fluid Mechanics (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
GB1239614D 1967-09-27 1968-09-26 Expired GB1239614A (nl)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19671614865 DE1614865A1 (de) 1967-09-27 1967-09-27 Optoelektronische Halbleiteranordnung

Publications (1)

Publication Number Publication Date
GB1239614A true GB1239614A (nl) 1971-07-21

Family

ID=5682038

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1239614D Expired GB1239614A (nl) 1967-09-27 1968-09-26

Country Status (3)

Country Link
JP (1) JPS46540B1 (nl)
FR (1) FR1585979A (nl)
GB (1) GB1239614A (nl)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2078702A1 (de) * 2007-12-20 2009-07-15 GASSNER, Kurt Vorrichtung sowie diskontinuierliches Verfahren zur Abwasserreinigung

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU524951B2 (en) * 1978-04-19 1982-10-14 See Probe Electronics Pty. Ltd. L.e.d. reflectance fluid level indicator
FR2494912A1 (fr) * 1980-11-21 1982-05-28 Radiotechnique Compelec Dispositif photocoupleur de detection
FR2594951B1 (fr) * 1986-02-24 1989-08-04 Photonique Ind Procede pour la mesure des caracteristiques physiques d'un milieu liquide ou gazeux et dispositif a fibres optiques pour sa mise en oeuvre
DE3881278T2 (de) * 1987-04-17 1993-09-09 Ngk Spark Plug Co Geraet zur feststellung des mischungsverhaeltnisses von benzin und einem alkohol oder entsprechendem.

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2078702A1 (de) * 2007-12-20 2009-07-15 GASSNER, Kurt Vorrichtung sowie diskontinuierliches Verfahren zur Abwasserreinigung

Also Published As

Publication number Publication date
JPS46540B1 (nl) 1971-01-08
FR1585979A (nl) 1970-02-06

Similar Documents

Publication Publication Date Title
GB1184355A (en) Device for gunnery target practice by lase beams
GB1362732A (en) Optoelectronic probe
DE3469457D1 (en) Encapsulated optoelectronic measuring device
GB1239614A (nl)
GB1362376A (en) Optical proximity detector
GB1409376A (en) Retro-reflective detector head
SE333469B (nl)
CH668678GA3 (nl)
GB1515089A (en) Device for measuring temperature
GB1120451A (en) Apparatus for sensing the position of a boundary surface
GB1080106A (en) Method of and apparatus for detecting lines on the surface of a travelling sheet
FR1500220A (fr) Dispositif pour la détermination de l'indice de réfraction relatif de matières transparentes par rapport à un milieu d'indice de réfraction connu
ES372257A1 (es) Procedimiento y dispositivo para la deteccion optica de de-fectos presentados por objetos, en particular de vidrio.
JPS6464283A (en) Optical integrated circuit device
BE780933A (fr) Dispositif de lecture optique, notamment de signes apposes sur des marchandises
GB1249419A (en) Differential pressure measuring apparatus comprising a differential manometer
DE3663999D1 (en) Optico-electronic level detector with double pick-up elements
GB967194A (en) An optical system
GB1327231A (en) Fire detecting apparatus
GB1260257A (en) Light sensitive apparatus
GB1044950A (en) Improvements in or relating to optical elements for photo-electric sensing devices
GB1203734A (en) Improvements in or relating to identification devices
GB1023091A (en) Liquid level indicating systems
GB1317449A (en) Photoelectric sensing device
FR2292953A1 (fr) Detecteur optique d'horizontalite

Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees