WO2007014539A1 - Capuchon a utiliser avec des capteurs optiques - Google Patents

Capuchon a utiliser avec des capteurs optiques Download PDF

Info

Publication number
WO2007014539A1
WO2007014539A1 PCT/DE2006/001088 DE2006001088W WO2007014539A1 WO 2007014539 A1 WO2007014539 A1 WO 2007014539A1 DE 2006001088 W DE2006001088 W DE 2006001088W WO 2007014539 A1 WO2007014539 A1 WO 2007014539A1
Authority
WO
WIPO (PCT)
Prior art keywords
cap
cap according
connecting piece
connector
transparent
Prior art date
Application number
PCT/DE2006/001088
Other languages
German (de)
English (en)
Inventor
Matthias Lau
Lars Bondzio
Original Assignee
Sentronic GmbH Gesellschaft für optische Meßsysteme
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 Sentronic GmbH Gesellschaft für optische Meßsysteme filed Critical Sentronic GmbH Gesellschaft für optische Meßsysteme
Priority to DE112006002225T priority Critical patent/DE112006002225A5/de
Publication of WO2007014539A1 publication Critical patent/WO2007014539A1/fr

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
    • G01N21/01—Arrangements or apparatus for facilitating the optical investigation
    • G01N21/15—Preventing contamination of the components of the optical system or obstruction of the light path

Definitions

  • the invention relates to a cap which effectively seals a separable optical signal path against external media through an integral sealing construction in the form of a sealing ring or sealing lip, and the unambiguous use of caps on complementary fittings by use of various unique complementary construction elements between cap and fitting guaranteed.
  • the use of sensitive, mostly fluorophores, chromophores or lumophores, substances for the measurement of physical and chemical parameters in optical sensors is well known.
  • the fixation of the sensitive substances in such sensors is preferably in the form of thin layers on optically transparent supports or directly on optical elements, such as polished ends of optical fibers.
  • suitable optical excitation it comes to the excitation of these sensitive substances and, in interaction with the analyte for optical modulation, for example, a fluorescence signal which is detected by optoelectronic devices and subsequently analyzed.
  • Optically transparent carriers can be a direct component of a cap or be mechanically fixed as a separate component in a cap construction, as described in patent EP 1 230 538 A1 or DE 41 08 808 A1.
  • the constructive solution according to the invention comprises the integration of the sealing construction element as a rotationally symmetrical sealing lip or sealing ring in the inner circumferential surface of the cap and thus becomes part of the disposable article. Due to the firm integration of the sealing ring or sealing lip into the cap, the sealing elements that can be used only once are changed automatically during cap replacement. Due to the position of the sealing elements inside the cap these are effectively protected against external damage.
  • the invention comprises an overall construction of cap and fitting, which has been combined from various structural elements, each representing a unique or unambiguous complementary connection between the cap and fitting.
  • a variable constructive element is the fixation construction of the cap on the fitting.
  • the variation of the position, the pitch and the inner diameter of a thread in the cap inside is a simple possibility of a clear construction considering tolerance fields.
  • fixing by latching can be prevented by the variation of the diameter and the position in the smallest dimensions, the wrong use on a non-complementary fitting without the catch itself is damaged.
  • the fixation can be prevented on a non-complementary fitting.
  • the use of only one transparent material for the very inexpensive production of the entire cap should be avoided because coupled via uncoated cap outer surfaces extraneous light with very large aperture by total reflection in the optical signal path in the connector.
  • optically nontransparent materials or dyes in the area of the cap skirt possible coupling to the optically transparent area in the area of the coated area is limited, while at the same time significantly reducing the aperture for incident radiation.
  • Such a visually intransparent cap coat can mechanically fix an optically transparent support as described in patent EP 1 230 538 A1.
  • the sealing construction element is integrated into the transparent support, which enters into a non-positive connection to the connector.
  • a sealing construction element here, for example, a sealing lip, attached to the outer lower edge of the transparent support serve.
  • the positive connection of the transparent carrier with the sealing element can be done for example by plastic injection molding or a mating technology such as soldering or welding.
  • the sealing element can be positioned freely on the transparent support or the inner cap skirt.
  • a positive connection of the transparent carrier and the opaque cap material must be made by a suitable technology, this is for example, the multi-component injection molding, the electrically induced local melting, the local laser welding or chemical dissolving.
  • An easily detachable fixation of the cap on a connecting piece can by means of thread, but also by a Rastverbdinung, as described in Patent EP 1 230 538 Al, makes sense respectively.
  • a vertical Buchkraftbeetzschlagung the transparent support on the front side of the connecting piece, wherein the non-positive connection between the inner circumferential surface of the cap and the outer lateral surface of the connecting piece is carried out by a thread or bead.

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)
  • Optical Measuring Cells (AREA)

Abstract

L'invention concerne un capuchon qui protège, efficacement et en toute sécurité, un trajet de signal optique séparable par rapport à des milieux extérieurs grâce à une structure d'étanchéité intégrée en forme d'anneau d'étanchéité ou de lèvre d'étanchéité, tout en garantissant l'utilisation biunivoque de capuchons sur des pièces de raccordement complémentaires par l'utilisation de différents éléments de structure, se complétant de façon univoque, entre le capuchon et la pièce de raccordement. Ce capuchon sert à fixer au moins une substance sensible, constituée généralement de fluorophores, de chromophores ou de lumophores, sur un capteur optique ou à fibre optique (transducteur/convertisseur de mesure). Cette substance (ces substances) sert (servent) à mesurer des paramètres physiques et/ou chimiques, tels que l'oxygène, le pH, l'humidité et la pression, et est (sont) placée(s) sur des surfaces optiquement transparentes ou introduites dans ces dernières de préférence par couches ou systèmes de couches, lesquelles surfaces sont tournées vers l'extérieur dans le milieu de mesure. Ces substances sensibles sont souvent sujettes à la contamination ou au vieillissement. Grâce à la présente invention, ces substances sensibles peuvent être fixées sur le capteur optique (transducteur/convertisseur de mesure) au moyen du capuchon comme support remplaçable (article à usage unique), de sorte qu'une confusion est exclue ; le bouchon est orienté et fixé de façon inamovible et le milieu de mesure ne peut pas pénétrer dans le trajet optique.
PCT/DE2006/001088 2005-06-22 2006-06-22 Capuchon a utiliser avec des capteurs optiques WO2007014539A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE112006002225T DE112006002225A5 (de) 2005-06-22 2006-06-22 Kappe für den Einsatz mit optischen Sensoren

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102005029284.4 2005-06-22
DE200510029284 DE102005029284A1 (de) 2005-06-22 2005-06-22 Kappe für den Einsatz mit optischen Sensoren

Publications (1)

Publication Number Publication Date
WO2007014539A1 true WO2007014539A1 (fr) 2007-02-08

Family

ID=37441311

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2006/001088 WO2007014539A1 (fr) 2005-06-22 2006-06-22 Capuchon a utiliser avec des capteurs optiques

Country Status (2)

Country Link
DE (2) DE102005029284A1 (fr)
WO (1) WO2007014539A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011081326A1 (de) 2011-08-22 2013-02-28 Endress + Hauser Conducta Gesellschaft für Mess- und Regeltechnik mbH + Co. KG Optischer Sensor, insbesondere zur Bestimmung von Stoffkonzentrationen in wässrigen Lösungen mittels einer Fluoreszenzmessung

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011051200A1 (de) * 2011-06-20 2012-12-20 Priamus System Technologies Ag Sensor

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4108808A1 (de) * 1991-03-18 1992-09-24 Biotechnolog Forschung Gmbh Sensoranordnung zur bestimmung eines analyts
WO2001036950A1 (fr) * 1999-11-16 2001-05-25 Sentronic GmbH Gesellschaft für optische Meßsysteme Capuchon

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4108808A1 (de) * 1991-03-18 1992-09-24 Biotechnolog Forschung Gmbh Sensoranordnung zur bestimmung eines analyts
WO2001036950A1 (fr) * 1999-11-16 2001-05-25 Sentronic GmbH Gesellschaft für optische Meßsysteme Capuchon

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011081326A1 (de) 2011-08-22 2013-02-28 Endress + Hauser Conducta Gesellschaft für Mess- und Regeltechnik mbH + Co. KG Optischer Sensor, insbesondere zur Bestimmung von Stoffkonzentrationen in wässrigen Lösungen mittels einer Fluoreszenzmessung
US20130214175A1 (en) * 2011-08-22 2013-08-22 Endress + Hauser Conducta Gesellschaft Fur Mess- Und Regeltechnik Mbh + Co. Kg Optical sensor, especially for determining substance concentrations in aqueous solutions by means of a fluorescence measurement
US9383317B2 (en) * 2011-08-22 2016-07-05 Endress+Hauser Conducta Gmbh+Co. Kg Optical sensor, especially for determining substance concentrations in aqueous solutions by means of a fluorescence measurement

Also Published As

Publication number Publication date
DE102005029284A1 (de) 2006-12-28
DE112006002225A5 (de) 2008-05-21

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