LASER RADIATION POWER METER Russian patent published in 2020 - IPC G01J1/02 G01J1/08 G01J1/42 

FIELD: measurement technology.

SUBSTANCE: invention relates to the field of optical measurements, namely to energy photometry, and can be used for discrete measurements of high power levels of wide beams of laser radiation. Laser radiation power meter comprises a copper rod receiving element which absorbs laser radiation energy, a thermally sensitive element – a resistance thermometer – and a unit for moving the rod receiving element along the beam cross-section. In rod receiving element there are two longitudinal channels, in one of which there is electric heater, and in other – said heat-sensitive element. Electric heater channel is located on the side of the surface of the rod element facing the laser radiation source, and the channel of the heat-sensitive element is on the shady side. Height of receiving element exceeds beam diameter, and displacement unit provides its movement at constant speed through beam section.

EFFECT: high accuracy of measurements.

10 cl, 2 dwg