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Re: Pressure sensors
On Wed, 2 Jan 2019, at 18:38:21 +0000, David Holland wrote:
> On Tue, Jan 01, 2019 at 12:03:31PM -0500, Greg Troxel wrote:
> > > my sensor does fill ->value_cur with mPa, so pressure does fit into the
> > > "everything else"-else{} with ->cur_value / 1000000.0 for printout in kPa.
> >
> > Until very recently I had never seen pressure in kPa. For atmospheric
> > pressure, the standard unit seems to be hPa. I realize that's a
> > less-normal SI prefix, but it happens to match mbar. But, I am seeing
> > kPa more tha last 6 months.
>
> Environment Canada was reporting pressure in kPa when I was a kid. Did
> they stop?
As a piece of Canadian trivia, yes, they still report pressure using
kPa. E.g. https://weather.gc.ca/city/pages/on-143_metric_e.html. (I
always assumed that was the norm.)
Dave
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