On 16. Mar 2019, at 23:27, Brett Pound
Hey Marko, great write-up and will be very beneficial to us all.
The one thing I’d love to hear is where did you get
your RTDs from? In AUS at least it seems we have very few non-commercial players (as they
all want to charge commercial prices, as a hobbyist I can’t justify) so I seem to be
relegated to buying from O/S suppliers.
Strange. Here you can get all types from everywhere all across EU. Omega has some, even
Phidgets has them in their online store.
Mine is this one from here (Germany):
Sent from Mail for Windows 10
From: Marko Luther via Artisan-User <artisan-user(a)lists.einfachkaffee.de>
Sent: Saturday, March 16, 2019 1:40:43 AM
To: Marko Luther via Artisan-User
Subject: [Artisan-user] On Idle Noise
I received many complaints on noisy RoR signals over the year. The ongoing work of Scott
Rao and a broken TC made me reconsider my own roast logging setup. As I had collected many
different meters and probes over the years, mostly for development purpose, I wonder which
one I should best install in my machine.
My goal was to minimize both, the signal to noise ratio as well as the introduced signal
delay, especially for the RoR. Thus I came up with a setup that would allow me to compare
different setups on the amount of idle noise they produce.
Details are here: https://artisan-roasterscope.blogspot.com/2019/03/on-idle-noise.html
I switched from TCs to RTDs for reasons detailed in the post and I am quite happy with my
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