Activities/Turtle Art/Using Turtle Art Sensors: Difference between revisions

Tonyforster (talk | contribs)
Tonyforster (talk | contribs)
Line 162: Line 162:
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.
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 transformer1.jpg]]