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Well Art, I have to say I'm all wet on this one!
I don't even remember the sensor I had even looking liked the one you show.
I was not aware that they used a reed switch inside the coils or the circuit boards.
As I remember, the one I looked into had a lot more coils and were vertical in a circle. Guess, I must have dreamed the whole thing.
Still thought this sensor was a shunted device. Guess a shorted circuit would draw more current through the parallel wires and those coils.
As far as the hertz thing. I thought dynamos had to turn something near of 60 x 60 = 3600 rpm. Multiples of or divided by the number of poles built into armature vs field windings. Several three phase circuits can be milked out of one generating unit. Of course I'm talking about steam/hydro driven powerhouse units that I'm most familiar with.
My experience with movement of windings was with a problem on GE Dynamos in the early 80's. In my thinner days I was elected/selected/volunteered to slide around in between the inner housing and the stator windings to install belly bands to stabilize the bars that hold the windings. Barely enough room to breathe between them. Still had to tighten up band bolts. Found out that I was not claustrophobic.
There was a unit in Redondo Beach Ca. that blew/cracked open a end bell housing. That's when I also found out about the use of Hydrogen gas. It's used to cool the windings. Moves more BTU's per pound next to water. Does have a slight draw back though if it gets mixed with something else! But then again, so does water?
Then again water should burn. H2O? Someday it may become economical.
In this case it was excessive heat (shorts) caused excessive expansion of gas and the joints. Didn't blow up really but it wasn't pretty.
The statement made by Mr. Hunter is dead on. Below 60 to far above is correct.
We now have quartz crystals and atomic radios for our clocks. Counting the cycles as some AC appliances have done and some still do. Has change some of that dependence.
This bring us back to our discussion of AC (Telsa) vs DC ( Edison and Franklin). Then the aircraft industry and the military using 400 hertz to save size and weight.
Of course you know all this stuff. You said you would like to hear more about my thoughts on these fellows.
Since I was guessing at a "DC ripple" theory. That's why I called out in my post for you or Jorrell to reply.
Glad Smitty is happy!
Little did I know we have Mr. Hunter as a another person so well informed. This is a good site for swapping and sharing knowledge isn't it!
Maybe a little confusion (for me) mixed in as well.
It all makes me Happy!
Phil
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