/challenges-projects/project14/provingscience/b/blog/posts/experimenting-with-ac-current-sensingAfter watching James Lewis&#39; Work Bench Wednesday presentation a couple weeks ago on Clamp Meters and sensing current Workbench Wednesday 24: No-Contact Current Measurements and reading some of the comments I decided that it would be f...en-USTelligent Community 12https://community.element14.com/challenges-projects/project14/provingscience/b/blog/posts/experimenting-with-ac-current-sensingSun, 19 Jul 2020 17:39:40 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:c0601c8f-8ae1-4dfe-b469-12534322319cDAB0<p>Nice experiment John.</p><p>&nbsp;</p><p>Well done.</p><p>&nbsp;</p><p>DAB</p><img src="https://community.element14.com/aggbug?PostID=9624&AppID=268&AppType=Weblog&ContentType=0" width="1" height="1">https://community.element14.com/challenges-projects/project14/provingscience/b/blog/posts/experimenting-with-ac-current-sensingSun, 19 Jul 2020 17:08:13 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:c0601c8f-8ae1-4dfe-b469-12534322319cphoenixcomm0<p><span>[mention:f80b53cee57c44bc9d7c577d07d7c791:e9ed411860ed4f2ba0265705b8793d05]</span> Nicely&nbsp; done, very interesting. </p><img src="https://community.element14.com/aggbug?PostID=9624&AppID=268&AppType=Weblog&ContentType=0" width="1" height="1">https://community.element14.com/challenges-projects/project14/provingscience/b/blog/posts/experimenting-with-ac-current-sensingSun, 19 Jul 2020 06:10:44 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:c0601c8f-8ae1-4dfe-b469-12534322319cmichaelkellett2<p>It might be useful to repeat your experiment but measuring the current in the torroid coil using an AC meter. Connect the meter right across the winding,</p><p>that way the transformer will be working as a classic current transformer and I like to hope it will be more linear.</p><p>&nbsp;</p><p>Alternatively you could wire a lowish resistance across the torroid ( maybe 50 or 100 ohms) and measure the voltage across it with an AC meter.</p><p>&nbsp;</p><p>MK</p><img src="https://community.element14.com/aggbug?PostID=9624&AppID=268&AppType=Weblog&ContentType=0" width="1" height="1">https://community.element14.com/challenges-projects/project14/provingscience/b/blog/posts/experimenting-with-ac-current-sensingSat, 18 Jul 2020 21:45:13 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:c0601c8f-8ae1-4dfe-b469-12534322319cgenebren0<p>Nice experiment John!&nbsp; I do enjoy getting to see your cool, home-built equipment getting put to work.&nbsp; Nicely done.</p><img src="https://community.element14.com/aggbug?PostID=9624&AppID=268&AppType=Weblog&ContentType=0" width="1" height="1">