Advice on tracking cold temperatures
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Posts: 46,084
Recently I attempted to track water temperature by using a AD592 and an RC
network, with RCTime and a BS2. Unfortunately, it didn't work; the whole
circuit was sitting outside, and the temps out there got to -15F at points.
As best I can tell, this affected the accuracy of the circuit, and I didn't
get accurate temperature readings. As a result, I think I turned a few fish
into fishicles (I won't know for certain until Spring thaw).
I need a more accurate way to track water temperature, something which will
still work well if the circuit itself gets extremely cold. What's good?
network, with RCTime and a BS2. Unfortunately, it didn't work; the whole
circuit was sitting outside, and the temps out there got to -15F at points.
As best I can tell, this affected the accuracy of the circuit, and I didn't
get accurate temperature readings. As a result, I think I turned a few fish
into fishicles (I won't know for certain until Spring thaw).
I need a more accurate way to track water temperature, something which will
still work well if the circuit itself gets extremely cold. What's good?
Comments
as -55 Celsius ?
There are plenty of choices on the market.
Neednt no analogue parts, everything is done by digital I2C, SPI, 1-Wire,
etc...
Have a look !
Antonio Sergio Sena
Original Message
From: "Scott" <scott@m...>
To: <basicstamps@yahoogroups.com>
Sent: Sunday, February 01, 2004 6:04 PM
Subject: [noparse][[/noparse]basicstamps] Advice on tracking cold temperatures
> Recently I attempted to track water temperature by using a AD592 and an RC
> network, with RCTime and a BS2. Unfortunately, it didn't work; the whole
> circuit was sitting outside, and the temps out there got to -15F at
points.
> As best I can tell, this affected the accuracy of the circuit, and I
didn't
> get accurate temperature readings. As a result, I think I turned a few
fish
> into fishicles (I won't know for certain until Spring thaw).
>
> I need a more accurate way to track water temperature, something which
will
> still work well if the circuit itself gets extremely cold. What's good?
>
>
>
>
>
Ant
be too much trouble.
-- Jon Williams
-- Applications Engineer, Parallax
-- Dallas Office
Original Message
From: Scott [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=oNoFL4TPKyOhUKdNG18I07K1sxWrmR7WUjkiTbMNHUeMw75nvbaCur640Y6_s7JDEfv-9-A]scott@m...[/url
Sent: Sunday, February 01, 2004 12:04 PM
To: basicstamps@yahoogroups.com
Subject: [noparse][[/noparse]basicstamps] Advice on tracking cold temperatures
Recently I attempted to track water temperature by using a AD592 and an
RC network, with RCTime and a BS2. Unfortunately, it didn't work; the
whole circuit was sitting outside, and the temps out there got to -15F
at points. As best I can tell, this affected the accuracy of the
circuit, and I didn't get accurate temperature readings. As a result, I
think I turned a few fish into fishicles (I won't know for certain until
Spring thaw).
I need a more accurate way to track water temperature, something which
will still work well if the circuit itself gets extremely cold. What's
good?