Radiation beam calorimetric power measurement system
US5156459A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 13, 1992 |
| Grant date | Oct 20, 1992 |
| Priority date | — |
| Expiry date | Feb 13, 2012 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01K17/003
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.