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Ron, the instrument measures frequency in metres/sec. That is 30Hz = 30 m/s. I want to display the value as knots (to use on my yacht) which is very close to doubling.
Ie, 30 Hz= 30 m/s = 58 knots
the display unit I intend to purchase is on ebay
**broken link removed**
Just trying to rig...
Ron, the instrument measures frequency in metres/sec. That is 30Hz = 30 m/s. I want to display the value as knots (to use on my yacht) which is very close to doubling.
Ie, 30 Hz= 30 m/s = 58 knots
the display unit I intend to purchase is on ebay
**broken link removed**
Just trying to rig...
There is a second option if this is easier though it means losing a decimal point in accuracy when displaying the wind speed.
That is reducing the frequency by a factor of 5. Found this site
**broken link removed**
if you can help me with some suggestions if this approach will work and is...
I have the specs on the instrument being measured - it is an anemometer that has an optical sensor which when the wind cups rotate, a disc with a"square wave" like cutting blocks the sensor switching it on and off and this gives the varying freq signal in what I would say is very nearly 50% duty...
I realise a similar topic has been posted before (and I have viewed some earlier forums) but I want to add my specifics and requirements with the hope that someone can reply with a simple and effective solution or circuit diagram. Please go easy on the tech jargon as this is all new but I am...
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