Analizator do spektroskopii laserowo indukowanego rozpadu

    公开(公告)号:PL404561A1

    公开(公告)日:2014-03-17

    申请号:PL40456111

    申请日:2011-09-15

    Abstract: Analizator (10) do spektroskopii laserowo indukowanego rozpadu LIBS zawiera sciezke optyczna (P) przedstawiona liniami przerywanymi (P1) i liniami punktowo-kreskowymi (P2) oraz uklad (12) automatycznego ogniskowania (lub sledzenia). Sciezka optyczna (P) ogniskuje wiazke laserowa emitowana z lasera (14) na fragment próbki (S), która ma byc analizowana przez analizator (10), oraz ogniskuje promieniowanie emitowane przez próbke (S) podczas oswietlania wiazka laserowa do detektora (16). Uklad (12) automatycznego ogniskowania jest zdolny do zmiany dlugosci sciezki optycznej (P) w celu utrzymania stalej zaleznosci przestrzennej (tj. odleglosci) miedzy ogniskiem (18) wiazki laserowej i próbka (S), jak równiez utrzymania stalego chwilowego pola widzenia IFOV detektora (16) na ognisku lasera.

    An emission spectrometer and method of operation

    公开(公告)号:AU2012211024A1

    公开(公告)日:2013-08-01

    申请号:AU2012211024

    申请日:2012-01-11

    Abstract: A method of calibrating an emission spectrometer (10) having a detector (11) capable of detecting spectral components of incident radiation, and a measurement optical path (28) which directs an energy beam (26) to a sample (20) and radiation emitted by the sample when irradiated by the energy beam to the radiation detector (11). The method comprises directing radiation of known spectral characteristic along an alternate path to the detector (11). The detector (11) to detects spectral characteristics of the radiation and makes a comparison with the known spectral characteristics. Drift data is determined on a basis of any variation between the detected and known spectral characteristics. The drift data is stored and subsequently used to adjust detected spectral characteristics of a sample in the measurement optical path (28) produce a drift calibrated output spectral analysis of the sample.

    AUTONOMOUS METHOD AND SYSTEM FOR DETERMINING ELEMENTAL COMPOSITION OF AN ORE

    公开(公告)号:CA2852744A1

    公开(公告)日:2013-04-25

    申请号:CA2852744

    申请日:2012-10-18

    Abstract: A method (10) for autonomously determining an elemental composition of an ore involves an initial step (12) of conveying a stream of the ore past a moisture measurement system and an analyser. At step (14) the moisture measurement system operates to obtain moisture content data of the ore. As the stream of ore subsequently passes the analyser, the analyser at step (16) operates to obtain raw elemental composition data of the ore. The moisture content data and the raw elemental composition data are provided as inputs to compensation step (18). In the compensation step (18) one or more data compensation or correction methods or techniques are performed to provide moisture corrected elemental composition data of the ore. This compensated data is provided at step (20).

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