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[TCML] Re: Coils at Maker Faire



During a drive-by, the AC mains power and the tuning stay the same. What changes is the decrement of the secondary waveform. Normally the decrement is a relatively smooth exponential decay.

When the roadster vehicle is within range and drawing power, the decrement becomes sharper and gains a distinctive beat note. The beat note can become quite pronounced, even to the point where the decrement becomes non-monotonic... indicating that the vehicle can return energy to the coils as well as steal energy. GL


Dr.Hankenstein wrote:



Greg,

During a "drive by" I would venture to guess that you see some de-tuning
and shifts in power consumption, etc. on your metering as the Roadster
distorts the "normal" field between the coils? Have you noticed that as
you turn up the power, the actual amount of de-tuning, etc. actually
reduces as a percentage of input vs. output? I think my little mind
would go into hyper-enjoyment watching these changes occur. Thanks
again,

Hank
-----Original Message-----
From: tesla-bounces@xxxxxxxxxx [mailto:tesla-bounces@xxxxxxxxxx] On
Behalf Of Greg Leyh
Sent: Tuesday, June 02, 2009 5:21 PM
To: tesla@xxxxxxxxxx
Subject: [TCML] Re: Coils at Maker Faire

Hi Hank,

The roadster usually 'robs' less than 1/2 horsepower. The arcs affect the machines much more strongly than the machines affect the arcs. Still, from the diagnostics it's possible to tell that the Roadster is nearby, when the coils are operating. GL


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