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High-Speed Peltier calorimeter for the calibration of high-bandwidth power measurement equipment

Abstract:
Accurate power measurements of electronic components operating at high frequencies are vital in determining where power losses occur in a system such as a power converter. Such power measurements must be carried out with equipment that can accurately measure real power at high frequency. We present the design of a high speed calorimeter to address this requirement, capable of reaching a steady state in less than 10 minutes. The system uses Peltier thermoelectric coolers to remove heat generated in a load resistance, and was calibrated against known real power measurements using an artificial neural network. A dead zone controller was used to achieve stable power measurements. The calibration was validated and shown to have an absolute accuracy of +/-8 mW (95% confidence interval) for measurements of real power from 0.1 to 5 W.
Publication status:
Published
Peer review status:
Peer reviewed

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Publisher copy:
10.1109/TIM.2015.2477155

Authors


More by this author
Institution:
University of Oxford
Division:
MPLS
Department:
Engineering Science
Role:
Author
More by this author
Institution:
University of Oxford
Division:
MPLS
Department:
Engineering Science
Role:
Author


Publisher:
Institute of Electrical Engineers
Journal:
IEEE Transactions on Instrumentation and Measurement More from this journal
Volume:
65
Issue:
1
Pages:
155-163
Publication date:
2016-01-01
DOI:
EISSN:
1557-9662
ISSN:
0018-9456


Keywords:
Pubs id:
pubs:593786
UUID:
uuid:f35be04b-4cfd-45ee-8481-9988a8752a9d
Local pid:
pubs:593786
Source identifiers:
593786
Deposit date:
2016-01-21

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