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Activities/Turtle Art/Using Turtle Art Sensors (view source)
Revision as of 00:59, 12 November 2010
, 00:59, 12 November 2010→Measuring AC Amps
==Measuring AC Amps==
==Measuring AC Amps==
An inexpensive [http://en.wikipedia.org/wiki/Current_transformer current transformer] can be built to measure AC amps.
An inexpensive [http://en.wikipedia.org/wiki/Current_transformer current transformer] can be built to measure AC amps.
50 turns of insulated copper wire are wrapped on a soft iron bar, threaded shaft, nuts and another bar complete the magnetic circuit.
[[File:Current transformer1.jpg]]
[[File:Current transformer sensitivity.jpg]]
[[File:Current transformer sensitivity.jpg]]