DE2625509A1 - Concave cathode lamp for photometric analyser - connected to vessel acting as gas reservoir, has extended working life - Google Patents

Concave cathode lamp for photometric analyser - connected to vessel acting as gas reservoir, has extended working life

Info

Publication number
DE2625509A1
DE2625509A1 DE19762625509 DE2625509A DE2625509A1 DE 2625509 A1 DE2625509 A1 DE 2625509A1 DE 19762625509 DE19762625509 DE 19762625509 DE 2625509 A DE2625509 A DE 2625509A DE 2625509 A1 DE2625509 A1 DE 2625509A1
Authority
DE
Germany
Prior art keywords
working life
vessel
lamp
gas
cathode lamp
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.)
Ceased
Application number
DE19762625509
Other languages
German (de)
Inventor
Walter Fabinski
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.)
ABB Training Center GmbH and Co KG
Original Assignee
Hartmann and Braun AG
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 Hartmann and Braun AG filed Critical Hartmann and Braun AG
Priority to DE19762625509 priority Critical patent/DE2625509A1/en
Publication of DE2625509A1 publication Critical patent/DE2625509A1/en
Ceased legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00Gas-discharge or vapour-discharge lamps
    • H01J61/02Details
    • H01J61/24Means for obtaining or maintaining the desired pressure within the vessel
    • H01J61/28Means for producing, introducing, or replenishing gas or vapour during operation of the lamp
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00Gas-discharge or vapour-discharge lamps
    • H01J61/64Cathode glow lamps

Landscapes

  • Investigating Or Analysing Materials By Optical Means (AREA)

Abstract

The lamp alone has a working life of 500 hrs. in normal operation and this is increased by the auxiliary vessel, as the gase reservoir of the attached vessel provides sufficient gas for radiation emission even when the gas in the lamp is used up. The gas vessel has a capacity 10 times that of the lamp bulb taking into account acceptable space requirements and sufficiently long working life. Its shape and attachment are such that for both a tubular protective housing can be used, which can easily be housed in the photometer.

Description

Vorrichtung mit einer Hohlkathodenlampe als Device with a hollow cathode lamp as

Strahlungsquelle für Betriebsphotometer Die Erfindung bezieht sich auf eine Vorrichtung mit einer Hohlkathodenlampe als Strahlungsquelle für Betriebsphotometer, die zur Untersuchung der chemischen oder physikalischen Eigenschaften von Stoffen verwendet werden. Radiation source for industrial photometers The invention relates to to a device with a hollow cathode lamp as the radiation source for industrial photometers, those used to investigate the chemical or physical properties of substances be used.

Hohlkathodenlampen werden in derartigen Photometern häufig dann benutzt, wenn die Strahlungsquelle möglichst monochromatische Strahlung oder Strahlung einzelner Spektrallinien abgeben soll. Der Lampenkolben ist mit verdünntem Gas gefüllt, das nach Anlegen einer Spannung an die Elektroden zur Strahlungsemission der für das Gas charakteristischen Speltrallinien angeregt wird. Oder Kathodenmateteril freischlägt und zu charakteristichen Linien anregt.Hollow cathode lamps are often used in such photometers if the radiation source as possible monochromatic radiation or radiation individual Should emit spectral lines. The lamp bulb is filled with dilute gas that after applying a voltage to the electrodes to emit radiation for the Gas characteristic Speltrallinien is excited. Or exposing cathode material and stimulates characteristic lines.

Die Betriebsdauer dieser Hohlkathodenlampen, die üblicherweise einen zylindrischen Lampenkolben mit einem Austrittsfenster für die Strahlung aufweisen, wird durch die während des Betriebes auftretende Gasaufzehrung begrenzt (s. z. B.The service life of these hollow cathode lamps, which are usually a cylindrical lamp bulb with an exit window for radiation are limited by the gas consumption that occurs during operation (see e.g.

in dem Buch Atomic Absorption and Fluorescende Spectroscopy "Academic Press" 1974, Seite 128, die Zeilen 20 und 21).in the book Atomic Absorption and Fluorescende Spectroscopy "Academic Press "1974, page 128, lines 20 and 21).

Sie genögt zur Zeit nicht den Anforderungen der Praxis bei der Verwendung der Hohlkathodenlampen in Betriebsphotometern, von denen ein möglichst langer, wartungsfreier Betrieb erwartet wird. Die Erfindung befaßt sich mit der rufgabe, hier Abhilfe zu schaffen und ein Mittel vorzusehen, mit dem die Betriebsdauer erheblich verlängert werden kann. Dieses Mittel besteht erfindungsgemäß darin, daß die Hohlkathodenlampe mit einem als Gasreservoir dienenden Gefäß verbunden ist.At the moment it does not meet the requirements of practical use of the hollow cathode lamps in industrial photometers, one of which is as long as possible and maintenance-free Operation is expected. The invention is concerned with the task of remedying this create and provide a means with which the service life is extended significantly can be. According to the invention, this means consists in that the hollow cathode lamp is connected to a vessel serving as a gas reservoir.

bin Ausführungsbeispiel der Erfindung ist in der Zeichnung darü'?eOtellt.An exemplary embodiment of the invention is shown in the drawing.

Mit 1 ist der Lampenkolben einer im Handel erhältlichen Hohl kathodenlampe von üblicher zylindrischer Form bezeichnet. Im Lampenkolben befindet sich eine anode 2 und eine Hohlkathode 3.With 1 the lamp bulb is a commercially available hollow cathode lamp of the usual cylindrical shape. There is an anode in the lamp bulb 2 and a hollow cathode 3.

Die durch Anlegen einer Spannung an die Zuleitungen 4 und 5 der Elektroden angeregte Strahlung tritt durch ein Fenster 6 aus.By applying a voltage to the leads 4 and 5 of the electrodes excited radiation emerges through a window 6.

An die Hohlkathodenlampe ist mittels eines Verbindungsrohres 7 ein Glasgefäß 8 angeschmolzen. Das Gas wird durch den Abschmelzstutzen 9 in das Gefäß und den Lampenkolben eingefüllt.A connecting tube 7 is connected to the hollow cathode lamp Glass vessel 8 melted on. The gas is fed through the melting nozzle 9 into the vessel and filled the lamp bulb.

Bei unterschiedlichen Glassorten des Lampenkolbens und des Glasgefäßes kann es erforderlich sein, ein Verbindungsrohr aus tibergangsgläsern vorzusehen, um eine einwandfreie Verbindung herzustellen. Für die Hohlkathodenlanpe allein kann bei normalem Betrieb eine Betriebsdauer von etwa fünfhundert Stunden veranschlagt werden. Durch das Zusatzgefäß ist es möglich, die Betriebsdauer der Hohlkathodenlampe wesentlich zu steigern, da das Gasreservoir des angeschlossenen Gefässes auch bei Gasaufzehrung in der Hohlkathodenlampe genügend Gas für die Strahlungsemission nachliefert.With different types of glass of the lamp bulb and the glass vessel it may be necessary to provide a connecting pipe made of transition glasses, to establish a proper connection. For the hollow cathode flan alone can estimated to run for about five hundred hours in normal operation will. The additional vessel makes it possible to reduce the operating time of the hollow cathode lamp to increase significantly, since the gas reservoir of the connected vessel also with Gas consumption in the hollow cathode lamp supplies enough gas for the radiation emission.

Ausgehend von den üblichen Abmessungen der Eohlkathodenlampen ist ein Gasgefäß entsprechend etwa dem zehnfachen Inhalt des Lampenkolbens im Hinblick auf einen akzeptierbaren Raumbedarf und eine ausreichende Betriebsdauer für den Einbau in Betriebsphotometern eine günstige Realisierung der Erfindung.Based on the usual dimensions of the Eohlkathodenlampen a gas vessel corresponding to about ten times the content of the lamp bulb in terms of on an acceptable space requirement and a sufficient operating time for the Installation in industrial photometers is a favorable implementation of the invention.

Das Gasgefäß wird zweckmäßigerweise so geformt und an die Hohlkathodenlampe angesetzt, daß für beide ein rohrförmiges Schutgehäuse anwendbar ist, das sich im Betriebsphotometer gut unterbringen läßt.The gas vessel is expediently shaped and attached to the hollow cathode lamp stated that a tubular protective housing is applicable for both, which is in Can accommodate operating photometer well.

Claims (1)

Patentanspruch Vorrichtung mit einer Hohlkathodenlampe, insbesondere zur Verwendung als Strahlungsquelle für photometrische Analysengeräte, dadurch gekennzeichnet, daß die Hohlkathodenlampe mit einem als Gasreservoir dienenden Gefäß verbunden ist.Patent claim device with a hollow cathode lamp, in particular for use as a radiation source for photometric analysis devices, characterized in that, that the hollow cathode lamp is connected to a vessel serving as a gas reservoir.
DE19762625509 1976-06-05 1976-06-05 Concave cathode lamp for photometric analyser - connected to vessel acting as gas reservoir, has extended working life Ceased DE2625509A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19762625509 DE2625509A1 (en) 1976-06-05 1976-06-05 Concave cathode lamp for photometric analyser - connected to vessel acting as gas reservoir, has extended working life

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19762625509 DE2625509A1 (en) 1976-06-05 1976-06-05 Concave cathode lamp for photometric analyser - connected to vessel acting as gas reservoir, has extended working life

Publications (1)

Publication Number Publication Date
DE2625509A1 true DE2625509A1 (en) 1977-12-15

Family

ID=5979996

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19762625509 Ceased DE2625509A1 (en) 1976-06-05 1976-06-05 Concave cathode lamp for photometric analyser - connected to vessel acting as gas reservoir, has extended working life

Country Status (1)

Country Link
DE (1) DE2625509A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3005638A1 (en) * 1980-02-15 1981-08-20 Erdmann & Grün KG, 6330 Wetzlar Spectral lamp for zeeman atomic absorption spectroscopy - esp. using lamp bulb which includes heated reservoir contg. substance emitting spectral lines
US4578618A (en) * 1979-06-23 1986-03-25 Hartmann & Braun Ag Low-pressure, hollow cathode lamp
DE3617110A1 (en) * 1986-05-21 1987-11-26 Leybold Heraeus Gmbh & Co Kg Lamp for producing resonant gas radiation

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4578618A (en) * 1979-06-23 1986-03-25 Hartmann & Braun Ag Low-pressure, hollow cathode lamp
DE3005638A1 (en) * 1980-02-15 1981-08-20 Erdmann & Grün KG, 6330 Wetzlar Spectral lamp for zeeman atomic absorption spectroscopy - esp. using lamp bulb which includes heated reservoir contg. substance emitting spectral lines
DE3617110A1 (en) * 1986-05-21 1987-11-26 Leybold Heraeus Gmbh & Co Kg Lamp for producing resonant gas radiation

Similar Documents

Publication Publication Date Title
DE2407133B2 (en) METHOD AND DEVICE FOR DETERMINING NITROGEN OXIDE
DE2552149B2 (en) Gas analyzer for lung examinations
DE112010000834T5 (en) Automatic analyzer
DE2649746B2 (en) Photometric device for measuring the light transmitted by a material
EP0269160B1 (en) Electrochemical time switch
EP0213278B1 (en) Diffusion gas sampler
DE3035944C2 (en) Semiconductor optical display device
DE2625509A1 (en) Concave cathode lamp for photometric analyser - connected to vessel acting as gas reservoir, has extended working life
DE2845890B2 (en) Mercury noble gas discharge lamp
DE19632847A1 (en) Gas analysis device for various analysis methods
DE2602304C3 (en) Device for examining the sense of color
DE102011086942A1 (en) Method for calibrating and / or adjusting an analyzer for chemical substances in liquids, in particular in aqueous solutions
DE2337988B2 (en) Device for determining the alcohol content in the breath
CH635714A5 (en) METHOD AND CIRCUIT ARRANGEMENT FOR OPERATING AN INCANDE LAMP.
DE2510237A1 (en) METHOD AND DEVICE FOR DETERMINING THE OZONE CONTENT OF GAS MIXTURES
DE2139427A1 (en) DEVICE FOR PHOTOMETRIC MEASUREMENT
DE2031590A1 (en) Debit advice for the. Anode of an X-ray tube
DE612344C (en) Incandescent lamp used for voltage monitoring
DE2215658A1 (en) AMNIOSCOPY TUBE TO DETERMINE CLUDDING OR DISCOLORATION OF THE FRUIT WATER
DE703870C (en) Power generator is united
DD266854A1 (en) CIRCUIT ARRANGEMENT FOR DISPLAYING VOLTAGE DEVIATIONS IN MEDICAL DEVICES
DE2105486A1 (en) Photometer
DE713375C (en) Method for the determination of sulfur in solid and liquid sulfur compounds by flame coloring
DE402889C (en) Colorimeter
DE318746C (en)

Legal Events

Date Code Title Description
OF Willingness to grant licences before publication of examined application
8110 Request for examination paragraph 44
8126 Change of the secondary classification

Ipc: G01N 21/01

8131 Rejection