I'm trying to find what kind of circuitry(circuit components or schematics) is used in this anemometer: http://www.nrgsystems.com/sitecore/content/Products/5966.aspx There are a lot of details about mechanical parts but not the electronics in their website. It just says it is generating ac sine waves that's all. I want to know whats in the anemometer.
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asked Nov 28, 2013 at 21:07
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2 Answers
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When you click the "Specifications" tab on that anemometer page, it specifically says
Signal type: low level AC sine wave, frequency linearly proportional to wind speed
... (more details about the output signal omitted) ...
Magnet: Indox 1, 25 mm (1 inch) diameter, 13 mm (0.5 inch) long, 4 poles
Coil: single coil, bobbin wound, 4100 turns of #40 wire, shielded for ESD protection
From those specs, it is almost certainly a fixed-coil, moving-magnet magneto -- a kind of alternator -- with the wires from the coil coming directly out. It apparently doesn't have any other "electronics" or "circuits".
It has a coil of wire, and it has a magnet spinning in the center of that coil. That's it.
They gave you details about each and every electronic part of the device -- both the coil, and the magnet. I'm a little puzzled -- Why would anyone think "they give no info about it" when their website already lists almost everything there is to know about it?
Could you give a link to a web page about something you've designed, that shows the amount of detail you think is appropriate?
(Image from http://en.wikipedia.org/wiki/File:Alternator_1.svg ).
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\$\begingroup\$ so does that mean they manufacture also the alternator themselves? I thought they would buy parts and montage them to make up the anemometer. \$\endgroup\$ Jan 28, 2014 at 22:38
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Signal type low level AC sine wave, frequency linearly proportional to wind speed
presumably, a small generator
answered Nov 28, 2013 at 23:41
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\$\begingroup\$ might be. but why do u think they give no info about it? i searched couldn't find a single info. \$\endgroup\$ Nov 28, 2013 at 23:44
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\$\begingroup\$ @user16307: We can only speculate. For the same reason KFC don't publish their secret recipe? Perhaps they see no commercial benefit to their shareholders in giving you free help to build a competing product? \$\endgroup\$ Nov 28, 2013 at 23:48
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\$\begingroup\$ sometimes manufacturers show all details in their electronics design even-though they have complicated circuits. this is not a rocket science thing but hey hided it just like coca cola formula. \$\endgroup\$ Nov 28, 2013 at 23:55
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\$\begingroup\$ @user16307 It's their intellectual property, so it's their choice, isn't it? \$\endgroup\$ Nov 29, 2013 at 13:22
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\$\begingroup\$ yep i understand but they gave a lot of info about the mechanical part which is the real crucial part for an anemometer. a bit strange. \$\endgroup\$ Nov 29, 2013 at 14:27