Radiation beam calorimetric power measurement system

Patent · Wed Jan 01 00:00:00 EST 1992

OSTI ID:868503

Baker, John ^[1]; Collins, Leland F ^[2]; Kuklo, Thomas C ^[3]; Micali, James V ^[4]

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1. Livermore, CA
2. Pleasanton, CA
3. Ripon, CA
4. Dublin, CA

A radiation beam calorimetric power measurement system for measuring the average power of a beam such as a laser beam, including a calorimeter configured to operate over a wide range of coolant flow rates and being cooled by continuously flowing coolant for absorbing light from a laser beam to convert the laser beam energy into heat. The system further includes a flow meter for measuring the coolant flow in the calorimeter and a pair of thermistors for measuring the temperature difference between the coolant inputs and outputs to the calorimeter. The system also includes a microprocessor for processing the measured coolant flow rate and the measured temperature difference to determine the average power of the laser beam.

• Research Organization: Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
• DOE Contract Number: W-7405-ENG-48
• Assignee: United States of America as represented by United States (Washington, DC)
• Patent Number(s): US 5156459
• OSTI ID: 868503
• Country of Publication: United States
• Language: English

Related Subjects

radiation
beam
calorimetric
power
measurement
measuring
average
laser
including
calorimeter
configured
operate
wide
range
coolant
flow
rates
cooled
continuously
flowing
absorbing
light
convert
energy
heat
meter
pair
thermistors
temperature
difference
inputs
outputs
microprocessor
processing
measured
rate
determine
measured temperature
flowing coolant
temperature difference
flow meter
flow rates
laser beam
flow rate
coolant flow
wide range
average power
beam energy
absorbing light
continuously flowing
radiation beam
power measurement
calorimetric power
beam calorimetric
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