Low-cost current meter
PublicThis report describes the design of a low-cost current meter sponsored by General Electric Industrial Systems. The meter is intended for residential use as a means of monitoring current consumption through a one-inch circuit breaker. This application is relevant given the recent power crisis, particularly on the West coast. The challenge is to design a non-intrusive measuring device that displays accurate information to the user. The solution developed in this project achieves non-intrusive current sensing by means of a magnetic field sensor that exploits Faraday's law. These magnetic field measurements are sampled by a PIC microcontroller and are used to calculate the true RMS current. The results show the meter to be accurate to 1 Amp over a measure range of 0-30Amps at 60Hz.
- This report represents the work of one or more WPI undergraduate students submitted to the faculty as evidence of completion of a degree requirement. WPI routinely publishes these reports on its website without editorial or peer review.
- Creator
- Publisher
- Identifier
- 02C013M
- Advisor
- Year
- 2002
- Sponsor
- Date created
- 2002-01-01
- Resource type
- Major
- Rights statement
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