*Laser Thermal Power Sensors
Thermal sensors have a series of bimetallic junctions called a thermopile. Radial or axial heat flow through the sensor creates a voltage proportional to the power absorbed as it flows through the thermopile. The reading is not dependent on the ambient temperature since only the temperature difference is measured and not the absolute temperature. The thermopile elements are so arranged that the reading is almost independent of beam size and position. Generally, Ophir specifies ±2% or better uniformity of reading over the surface.
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Fan Cooled Thermal Power/Energy Laser Measurement Sensor
F50A-BB-18
The F50A-BB-18 is a general purpose fan cooled thermal power/energy laser measurement sensor with a 17.5mm aperture. It can measure power from 10mW to 50W and energy from 6mJ to 50J. It has the spectrally flat broadband coating and covers the spectral range from 0.19 to 20µm. The sensor comes with a standard 1.5 meter cable for connecting to a meter or PC interface.
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High Power Thermal Sensors & Power Pucks – 1W to 120kW
15K-W-BB-45
The 15K-W-BB-45 is a water cooled thermal power/energy laser measurement sensor for very high powers with a 45mm aperture. It can measure power from 100W to 15,000W. It has a deflecting cone and annular absorber that withstands high power densities to 10kW/cm². It covers the spectral range from 0.8 - 2 and 10.6µm. The sensor comes with a standard 5 meter cable for connecting to a meter or PC interface.
