Two probes. Both measure temperature. One of them has a heating element inside too. There is a formula for when you add some much power to the probe and its temperature rises so much, you can determine the airflow. It is based on the “hot wire anemometer” that was discovered in the late 1880s. I didn’t build that part.
Most cars have a similar device in them. From: Chuck Hogg Sent: Saturday, August 17, 2019 7:08 PM To: AnimalFarm Microwave Users Group Subject: Re: [AFMUG] OT Today's project How does it measure flow? On Sat, Aug 17, 2019 at 4:12 PM <[email protected]> wrote: Made an air compressor tester. Flow and pressure. -- AF mailing list [email protected] http://af.afmug.com/mailman/listinfo/af_af.afmug.com -- Best Regards, Chuck Hogg | SVP/Director of Acquisitions ALL POINTS BROADBAND | Live Connected. mobile 502.435.6649 -------------------------------------------------------------------------------- -- AF mailing list [email protected] http://af.afmug.com/mailman/listinfo/af_af.afmug.com
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