New online display

[tallgirl]

I have one of those.

These NRG #40 and this Maximum anemometers are actual generators that generate a sine wave which is what I was wondering about.
I have an NRG #40 here at home that has been running for a couple of years.  I doubt that loading it down reduces its RPM at all but
not sure I would be able to really tell unless I had another one mounted in the exact same spot which isn't possible.

Finding out the actual specifications for anemometers seems to be a non-trivial exercise.  However, any anemometer that produces power is going to be affected by the load from the sensing gear.  I'm wresting with a number of sensors right now and making sure their voltage outputs aren't affected too much by different A/D converters has been giving me an excuse to get out the voltmeter and sit outside.  Now if I could just find a Fluke that has an Ethernet connection I'd be happy.  Or at least comfortable.

[boB]

I have one of those.

These NRG #40 and this Maximum anemometers are actual generators that generate a sine wave which is what I was wondering about.
I have an NRG #40 here at home that has been running for a couple of years.  I doubt that loading it down reduces its RPM at all but
not sure I would be able to really tell unless I had another one mounted in the exact same spot which isn't possible.

Finding out the actual specifications for anemometers seems to be a non-trivial exercise.  However, any anemometer that produces power is going to be affected by the load from the sensing gear.  I'm wresting with a number of sensors right now and making sure their voltage outputs aren't affected too much by different A/D converters has been giving me an excuse to get out the voltmeter and sit outside.  Now if I could just find a Fluke that has an Ethernet connection I'd be happy.  Or at least comfortable.

Since A/D converters are relatively high input impedance, I wouldn't think they would load things down to the point of giving false results, but it's possible I suppose, especially if that "instrument" doesn't have a decent buffer on its output.

As for the NRG 40 anemometer, I will stick it in front of a fan so I have steady speed, flash a strobe light on it (WoW, far out man !!) and then short its leads to see if it slows down at all.   Should be an interesting experiment.

boB