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Anemometer (handheld) with the prop 1
I lost most everything in a flood a few years back, including a significant amount of tools and test equipment. I've managed to replace most of it as needed for jobs. One tool that I really miss and have not needed to replace for a job is my handheld anemometer. It was a Kestrel 5500 which is actually a full weather station, but I primarily used it as an anemometer.
Instead of buying one, I thought I'd make one.
I searched before making this and I couldn't find a thread about making one completely from scratch.
My plan is to use a 120mm computer fan. Not a brushless model.
Then to connect that to an ADC then to the prop 1.
I have a few questions before I get the parts:
1) What kind of resolution do I need for my ADC?
2) Besides Not brushless are there any other parametrics for the computer fan that are suited to this application?
3) I'd like to use a 120mm fan for a larger sampling area, is this a mistake?
4a) What do I need to do to protect the ADC and prop from surges, or is this even an issue?
4b) If I can't connect the fan directly to the ADC, what do I need to read to figure out how to connect it, please?
I appreciate any help here and I'll be happy to share my results.
Follow-up projects will include the other features of the 5500, I've got a box full of sensors that I'm itching to use.
Any com port in a storm.
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