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Educational electrical appliance power meter and logger.

Nunn, J W (2013) Educational electrical appliance power meter and logger. Phys. Educ., 48 (5). pp. 570-577.

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The principle of two different designs of inductive power meter is presented. They both make use of the microphone input of a computer which together with a custom written program can record the instantaneous power of a domestic electrical appliance. The device can be built quickly and can be calibrated with reference to a known power device such as an electric kettle. Typical power versus time profiles are shown for a kettle, a dish washer and a fridge freezer. The components are cheap and the cost may be recouped many times over from the resultant energy saving. Custom software will be made available free of charge to anyone who requests it. It is hoped that students attending poorly -resourced schools at home or in the developing world will be able to make power loggers for use in their schools.

Item Type: Article
Keywords: Education, Electromagnetism, Electricity, Power, Data Logging
Subjects: Electromagnetics
Electromagnetics > Electrical Measurement
Identification number/DOI: 10.1088/0031-9120/48/5/570
Last Modified: 02 Feb 2018 13:14
URI: http://eprintspublications.npl.co.uk/id/eprint/6051

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