Thermal measuring and testing – Calorimetry – Total radiant energy or power measurement
Reexamination Certificate
2006-07-18
2006-07-18
Bennett, G. Bradley (Department: 2859)
Thermal measuring and testing
Calorimetry
Total radiant energy or power measurement
C374S045000
Reexamination Certificate
active
07077564
ABSTRACT:
A laser power meter and associated method are disclosed. The laser power meter has an absorber that is placed in a path of a laser beam during a power measurement, a temperature sensor for measuring the temperature of the absorber, a differentiator for determining a rate of change of the temperature of the absorber, and a processor that computes an estimated power of the laser beam based on the temperature and its rate of change without considering power related loss effects and then computes the power of the laser beam based on the estimated power and the temperature and its rate of change.
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T.R. Scott, “Theory of Isoperibol Calorimetry for Laser Power and Energy Measurement,”A Century of Excellence in Measurements, Standards, and Technology, A Chronicle of Selected NBS/NIST Publications, 1901-2000, NIST Special Publication 958, David R. Lide, Editor, Jan. 2001, pp. coversheet through Table of Contents [17 pages in length], and 178-180.
Bergman Sean
Levingston Sidney E.
Schloss James
Bennett G. Bradley
Coherent Inc.
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