WO2011114340A2 - Spectromètre d'émission atomique très développé utilisant un dispositif d'économie d'argon pour assurer un flux d'argon à travers une chambre optique (oc) et une chambre à étincelles (sc) afin d'économiser de l'argon au moyen d'une excellente production d'étincelles, ce qui conduit à une augmentation significative du nombre d'analyses qui peuvent être effectuées par bouteille de gaz argon et donc à des économies significatives - Google Patents

Spectromètre d'émission atomique très développé utilisant un dispositif d'économie d'argon pour assurer un flux d'argon à travers une chambre optique (oc) et une chambre à étincelles (sc) afin d'économiser de l'argon au moyen d'une excellente production d'étincelles, ce qui conduit à une augmentation significative du nombre d'analyses qui peuvent être effectuées par bouteille de gaz argon et donc à des économies significatives Download PDF

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Publication number
WO2011114340A2
WO2011114340A2 PCT/IN2010/000158 IN2010000158W WO2011114340A2 WO 2011114340 A2 WO2011114340 A2 WO 2011114340A2 IN 2010000158 W IN2010000158 W IN 2010000158W WO 2011114340 A2 WO2011114340 A2 WO 2011114340A2
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WO
WIPO (PCT)
Prior art keywords
argon
atomic emission
highly developed
chamber
emission spectrometers
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Ceased
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PCT/IN2010/000158
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English (en)
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WO2011114340A3 (fr
Inventor
Priya Darshan Pant
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Priority to PCT/IN2010/000158 priority Critical patent/WO2011114340A2/fr
Publication of WO2011114340A2 publication Critical patent/WO2011114340A2/fr
Anticipated expiration legal-status Critical
Publication of WO2011114340A3 publication Critical patent/WO2011114340A3/fr
Ceased legal-status Critical Current

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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
    • G01N21/62—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
    • G01N21/66—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light electrically excited, e.g. electroluminescence
    • G01N21/67—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light electrically excited, e.g. electroluminescence using electric arcs or discharges

Definitions

  • the method comprises evacuating a process chamber by a vacuum pump and supplying a gas to the process chamber, whereby a pressure in the process chamber is determined by the vacuum pump and the supplied gas, and that pressure in the process chamber is higher than a pressure in the vacuum pump, and analyzing the gas at a portion of or around the vacuum pump, which portion has a pressure lower than the pressure in the process chamber, by using a mass spectrometer.
  • a mass spectrometer In another existing system as given in Patent number: 4372155, wherein this specification teaches a basic method of obtaining on a continuous basis an instantaneous indication of the air to fuel ratio of an air/fuel mixture being fed to a combustion process. The process may take place in an internal combustion engine or, for example, in a power plant.
  • Modifications of the method are taught to obtain such information as the hydrogen to carbon ratio of the fuel being burned in the combustion process, the oxygen equivalence of the air/fuel mixture being burned, the air mass flow through the combustion process, the fuel mass flow through the combustion process, instantaneous fuel economy of a vehicle in which a combustion process is being carried out to propel the vehicle, and the oxygen concentration in the exhaust gases from the combustion process.
  • a gas sensor is positioned in the intake manifold and is responsive to a characteristic of the fuel mixture for generating an electrical control signal for controlling the metering of the fuel to the mixture.
  • the air and fuel are mixed together and the resultant mixture passes by an oxygen gas sensor prior to being distributed to the cylinders through the intake manifold system.
  • the output ; signal of the sensor is used for controlling the metering of the fuel.
  • an oxygen sensor is located downstream of the reactor to determine oxygen content in the exhaust gases from the internal combustion engine, the oxygen sensor comprising an ion conductive solid electrolyte forming an ion concentration chain and having catalytically inactive contacts, connected to a detection circuit which provides an output signal in dependence on a signal from the sensor, the output signal operating an alarm, or a transducer which interferes with proper engine operation to force the operator to have the reactor repaired.
  • two ion conductive chains are used, in a single sensor, or in two sensors, one being exposed to exhaust gases upstream of the catalytic reactor and the other downstream of the catalytic reactor, the output signals being provided to a differentially connected operational amplifier, to balance out extraneous influences.
  • an oxygen partial pressure measuring device for determining oxygen partial pressures in exhaust gases emitted from internal combustion engines comprises a metallic vessel mounted within an exhaust pipe of the engine and having an exhaust gas inlet facing to the exhaust gas flow and an exhaust gas outlet formed in a side surface of the vessel, an oxygen concentration cell shutting the exhaust gas out of the air in an air-tight manner, and a monolithic structure, what is called a honeycomb structure, located between the exhaust gas inlet and the oxygen concentration cell within the vessel for burning the exhaust gas.
  • the invention proposes a measuring-probe arrangement for detecting gases flowing in a gas conduit, especially exhaust gases flowing in an exhaust conduit of internal combustion engines.
  • the measuring-probe arrangement has a measuring element (13) which is surrounded in sealing fashion by a housing (11).
  • the section of the measuring element (13a) located at the measured-gas end of the measuring- probe projects from the housing (11) and is surrounded with a clearance by a protective tube (21) which is fixed by one end section on the housing (11) and has one or more openings (22) for the measured gas.
  • the measuring probe (10) is arranged in such a way in the gas conduit (30) that the gas opening (22) is arranged on that side of the protective tube (21) which faces away from the flow (35) of the measured gas.
  • Deterioration detector system for catalyst in use for emission gas purifier comprising; an emission passageway through which exhaust gas from internal combustion engine, passes by way of catalyst to facilitate the reducing and oxidizing reaction among the toxicant component of hydrocarbon, carbon monoxide and nitrogen oxide; a sensor placed at the emission passageway to position downstream of the catalyst against the exhaust gas flow so as to generate an output in direct proportion to air-fuel ratio in the exhaust gas; an enunciator arranged to activate in response to the output of more than the predetermined level generated from the air- fuel ratio sensor.
  • a front O.sub.2 sensor output VFO and a rear O.sub.2 sensor output VRO are detected on both the upstream and downstream sides of catalytic converter; air fuel ratio feedback correction coefficients .alpha, are determined on the basis of basic feedback control constants P.sub.R,L or i.sub. R,L and correction values PHOS according to rich and lean air fuel ratio conditions; periods T and amplitudes .alpha.. sub. R - .alpha..sub.
  • L of the air fuel ratio feedback correction coefficient .alpha are measured; a rich discriminating catalyst diagnosing slice level RSLH2 is set higher than a rich discriminating air fuel ratio feedback controlling slice level RSH1 and a lean discriminating catalyst diagnosing slice level RSLL2 is set lower than a lean discriminating air fuel ratio feedback controlling slice level RSLLl in such a way that RSLH2...
  • spectrophotometer didn't contain argon saver for Argon Flow in Optics Chamber and Spark Chamber for good sparking.
  • Spectrometer manufacturers use Argon Flow/Purge in many ways-While sparking (analyzing) Argon is made to flow through the Spark Chamber at 3 - 5 LPM.When not sparking, in supply mode, Argon is purged through the Spark Chamber at 0.50 LPM. Argon is also purged through the OC @ 0.50 LPM.Argon Flow rate depends on the design of the Spark Chamber, spark conditions. This procedure concerns with Argon gas clean through the Optics Chamber and Spark Chamber. When investigation is not taking place, during which time removal of these two chambers is done at approx.
  • This invention is based on argon saver mode which can be useful for good sparking and increased optical elements like the Grating and the detectors and also to clean the Spark Chamber. , it is significant to effect savings in all the above- mentioned Argon Flow Conditions. It's started with CCDs; PMTs CCD is a type of image sensor that detects light. The light-sensitive capacitors detect the intensity of light received and convert it into an electrical signal. Argon gas is purged through the Spark Chamber at regular gaps. The Spark Chamber is also planed as
  • Argon gas is needed to clean the Optics Chamber in which is an increased optical element like the Grating and the detectors, and also to clean the Spark Chamber.
  • CCDs PMTs CCD is a type of image sensor that detects light. .
  • the light-sensitive capacitors detect the intensity of light received and convert it into an electrical signal.
  • Each pixel on the CCD represents a specific wavelength of light, and the more photons absorbed, the more electrical signal generated.
  • Each pixel on the CCD represents a specific wavelength of light, and the more photons absorbed, the more electrical signal generated and highly accurate they have much better long-term stability too.
  • Argon Flow/Purge in the following ways (A) while sparking (analyzing) Argon is made to flow through the Spark Chamber at 3 - 5 LPM. (B) When not sparking, in standby mode, Argon is purged through the Spark Chamber at 0.50 LPM. (C)Argon is also purged through the OC @ 0.50 LPM. In order to obtain good overall savings in the consumption of Argon gas, it is important to effect savings in all the above- mentioned Argon Flow Conditions. Argon gas is purged through the Spark Chamber at regular intervals.
  • the Spark Chamber is also designed as small as possible and is kept closed during periods of non-use using a plate with a gasket for proper sealing. All operations are automatic using software and timings are optimized. Method for Argon saving in the Optics Chamber:
  • the optical chamber has consequently been constructed with two solenoid valves - one for "Argon In", the other for "Argon Out”.
  • Argon purging is started in the Optics Chamber at 0.50 LPM. After an optimized prearranged gap, the Argon Outlet Valve is shut. The Argon Inlet Valve is then shut after a short gap of the Outlet Valve shutting. This ensures trapping Argon in the Optics Chamber at a little higher pressure than atmospheric pressure. To ensure that conditions inside the Optics Chamber (pressure and consequently the refractive index of the medium inside the Optics Chamber) are precisely the same during each spark, purging through the Optics Chamber is started concomitantly with each spark.

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  • Health & Medical Sciences (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Physics & Mathematics (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, Analyzing Materials By Fluorescence Or Luminescence (AREA)

Abstract

L'invention concerne un mode de dispositif d'économie d'argon qui peut être précieux pour une excellente production d'étincelles et des éléments optiques améliorés du type réseau de diffraction et détecteurs, et également pour le nettoyage d'une chambre à étincelles, ce qui conduit à des économies significatives dans toutes les conditions de flux d'argon précitées. Le mode est déclenché à l'aide de CCD; CCD PMT est un type de capteur d'images qui détecte la lumière. Les condensateurs sensibles à la lumière perçoivent l'intensité de la lumière reçue et la convertissent en un signal électrique. Le gaz argon est purgé via la chambre à étincelles à des espaces standards. La chambre à étincelles est conçue pour être aussi petite que possible, et est maintenue fermée pendant des périodes de non utilisation au moyen d'une plaque dotée d'un joint assurant une étanchéité correcte. Toutes les opérations effectuées automatiquement au moyen d'un logiciel et les temporisations sont optimisées.
PCT/IN2010/000158 2010-03-18 2010-03-18 Spectromètre d'émission atomique très développé utilisant un dispositif d'économie d'argon pour assurer un flux d'argon à travers une chambre optique (oc) et une chambre à étincelles (sc) afin d'économiser de l'argon au moyen d'une excellente production d'étincelles, ce qui conduit à une augmentation significative du nombre d'analyses qui peuvent être effectuées par bouteille de gaz argon et donc à des économies significatives Ceased WO2011114340A2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/IN2010/000158 WO2011114340A2 (fr) 2010-03-18 2010-03-18 Spectromètre d'émission atomique très développé utilisant un dispositif d'économie d'argon pour assurer un flux d'argon à travers une chambre optique (oc) et une chambre à étincelles (sc) afin d'économiser de l'argon au moyen d'une excellente production d'étincelles, ce qui conduit à une augmentation significative du nombre d'analyses qui peuvent être effectuées par bouteille de gaz argon et donc à des économies significatives

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/IN2010/000158 WO2011114340A2 (fr) 2010-03-18 2010-03-18 Spectromètre d'émission atomique très développé utilisant un dispositif d'économie d'argon pour assurer un flux d'argon à travers une chambre optique (oc) et une chambre à étincelles (sc) afin d'économiser de l'argon au moyen d'une excellente production d'étincelles, ce qui conduit à une augmentation significative du nombre d'analyses qui peuvent être effectuées par bouteille de gaz argon et donc à des économies significatives

Publications (2)

Publication Number Publication Date
WO2011114340A2 true WO2011114340A2 (fr) 2011-09-22
WO2011114340A3 WO2011114340A3 (fr) 2016-05-26

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PCT/IN2010/000158 Ceased WO2011114340A2 (fr) 2010-03-18 2010-03-18 Spectromètre d'émission atomique très développé utilisant un dispositif d'économie d'argon pour assurer un flux d'argon à travers une chambre optique (oc) et une chambre à étincelles (sc) afin d'économiser de l'argon au moyen d'une excellente production d'étincelles, ce qui conduit à une augmentation significative du nombre d'analyses qui peuvent être effectuées par bouteille de gaz argon et donc à des économies significatives

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016059675A1 (fr) * 2014-10-14 2016-04-21 株式会社島津製作所 Spectroscope et dispositif de spectroscopie d'émission le comprenant
JP2018080939A (ja) * 2016-11-14 2018-05-24 株式会社島津製作所 発光分析装置

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3801788A (en) * 1972-11-16 1974-04-02 Midwest Research Inst Mass marking for spectrometry using programmed molecule clusters
US5172183A (en) * 1990-03-19 1992-12-15 Kawasaki Steel Corporation Glow discharge atomic emission spectroscopy and apparatus thereof
US5741615A (en) * 1992-04-24 1998-04-21 Canon Kabushiki Kaisha Light receiving member with non-single-crystal silicon layer containing Cr, Fe, Na, Ni and Mg
JP3123843B2 (ja) * 1992-12-17 2001-01-15 日本電子株式会社 プラズマフレームを用いた試料気化装置
US6965624B2 (en) * 1999-03-17 2005-11-15 Lambda Physik Ag Laser gas replenishment method
US6734964B1 (en) * 2000-11-30 2004-05-11 The Regents Of The University Of California Pulsed, atmospheric pressure plasma source for emission spectrometry
ITMI20011193A1 (it) * 2001-06-06 2002-12-06 Getters Spa Metodo per la misura mediante spettroscopia di mobilita' ionica dellaconcentrazione di acqua in argon, idrogeno, azoto e elio
US20030189128A1 (en) * 2002-04-05 2003-10-09 Soepnel John W. Reel and method of assembly
US20080175810A1 (en) * 2007-01-22 2008-07-24 Jerry Zhang Topical compositions for cosmetic and pharmaceutical use

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016059675A1 (fr) * 2014-10-14 2016-04-21 株式会社島津製作所 Spectroscope et dispositif de spectroscopie d'émission le comprenant
JPWO2016059675A1 (ja) * 2014-10-14 2017-04-27 株式会社島津製作所 分光器及びそれを備えた発光分光分析装置
JP2018080939A (ja) * 2016-11-14 2018-05-24 株式会社島津製作所 発光分析装置

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Publication number Publication date
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