A METHOD OF MEASURING THE POWER OF A LIGHT BEAM

A METHOD OF MEASURING THE POWER OF A LIGHT BEAM

A method of measuring the power of a ligh t beam (26), for example a laser beam (26), includes the steps of directing the beam (26) onto a layer (20) of boron-doped diamond or PCD, thereby causing the layer (20) to heat, measuring the rise in temperature of the layer (20) and determining the power o...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: VAN OERLE, BARTHOLOMEUS, MATHIAS, GODFRIED, HERMAN, PHILIP
Format: Patent
Sprache:eng ; fre
Schlagworte:
COLORIMETRY
MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT,POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED,VISIBLE OR ULTRA-VIOLET LIGHT
MEASURING
MEASURING QUANTITY OF HEAT
MEASURING TEMPERATURE
PHYSICS
RADIATION PYROMETRY
TESTING
THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
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Beschreibung
Zusammenfassung:A method of measuring the power of a ligh t beam (26), for example a laser beam (26), includes the steps of directing the beam (26) onto a layer (20) of boron-doped diamond or PCD, thereby causing the layer (20) to heat, measuring the rise in temperature of the layer (20) and determining the power of the light beam (26) from the rise in temperature. L'invention concerne un procédé qui permet de mesurer la puissance d'un faisceau lumineux (26), par exemple un faisceau laser (26). Le procédé consiste à diriger le faisceau (26) sur une couche (20) de diamant ou de PCD dopé au bore afin de provoquer l'échauffement de la couche (20); à mesurer l'élévation de température de la couche (20); et à déterminer la puissance du faisceau lumineux (26) sur la base de cette élévation de température.