VERFAHREN UND VORRICHTUNG ZUR ANALYSE DER MAGNETOOPTISCHEN DREHUNG EINER PROBE

A light beam of linearly polarized light is passed through a sample of material to be analyzed to a detector. A magnetic field is applied to the sample to obtain magneto-optic rotation of the polarization of the light by magneto-optically active constituents of the sample. A reference polarization r...

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Bibliographische Detailangaben
Hauptverfasser:	KELLY, MICHAEL A., LADIERA, CALIF. (V.ST.A.). !P G01N 23-22 42L 3-09 !2140794 AT 14.08.71 BEZ: VERFAHREN ZUR BESTIMMUNG SCHWERER ELEMENTE DURCH ROENTGENFLUORESZENZANALYSE. ZUSATZ ZU: 2046606 ANM: SIEMENS AG, 1000 BERLIN U. 8000 MUENCHEN, ERF: NEEB, KARL-HEINZ, WEISSE, HANNS-JOERG, CHANEY, ROBERT L., CUPERTINO, NEIDL, HERBERT
Format:	Patent
Sprache:	ger
Schlagworte:	COLORIMETRY DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING FREQUENCY-CHANGING INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT,POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED,VISIBLE OR ULTRA-VIOLET LIGHT MEASURING NON-LINEAR OPTICS OPTICAL ANALOGUE/DIGITAL CONVERTERS OPTICAL LOGIC ELEMENTS OPTICS PHYSICS RADIATION PYROMETRY TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF TESTING
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Beschreibung
Zusammenfassung:	A light beam of linearly polarized light is passed through a sample of material to be analyzed to a detector. A magnetic field is applied to the sample to obtain magneto-optic rotation of the polarization of the light by magneto-optically active constituents of the sample. A reference polarization rotator is positioned in the light beam to impart a reference rotation to the polarization of the light. One or both of the polarization rotation effects produced by the sample and the reference are modulated to produce a sideband modulation signal component in the detected output. The sideband signal component is separated and measured to obtain a signal having an amplitude which is a linear function of the quantity of the magneto-optically active material in the sample under analysis. In a preferred embodiment the reference polarization rotator comprises a second magneto-optic cell containing a reference magneto-optically active material corresponding to one of the constituents within the sample under analysis, whereby increased specificity is obtained in the output measurement.