[SS2S-Main] Re: temperature measurement
- From: "Lampe, Mattias SLC CT PEK" <mattias.lampe@xxxxxxxxxxx>
- To: "'sugarshot@xxxxxxxxxxxxx'" <'sugarshot@xxxxxxxxxxxxx'>
- Date: Tue, 25 Mar 2014 12:19:58 +0800
Hi Richard,
my personal choice would probably be to use an integrated chip that does
everything, including D/A-conversion, e.g. the MAX6675:
http://item.taobao.com/item.htm?spm=a230r.1.14.48.TLryFm&id=13831142184
Since it may be more convenient for you to use the existing DAC, you may prefer
one of the older chips with analog output, though. AD595 would be a good choice:
https://www.sparkfun.com/products/306
Of course you'll need to have a loot at the datasheets to see whether the
devices match the temperature range you need.
Hope it helps.
Have a good day!
Mattias
>-----Original Message-----
>From: sugarshot-bounce@xxxxxxxxxxxxx [mailto:sugarshot-
>bounce@xxxxxxxxxxxxx] On Behalf Of Richard Nakka
>Sent: Monday, March 24, 2014 10:33 PM
>To: sugarshot@xxxxxxxxxxxxx
>Subject: [SS2S-Main] temperature measurement
>
>For an upcoming motor test, we would like to use thermocouples
>(k-type?) to measure motor casing and nozzle temperatures.
>We would like to use an 8-channel DATAQ unit for the data acquisition.
>
>We understand there are challenges to this due to small voltage
>signal, non-linear temperature-voltage relationship and the need (?)
>for a reference junction compensation.
>
>Question to list members: Can anyone give advice on how to do this?
>What kind of amp would we need? Could anyone be of assistance in
>designing/building such?
>
>
>thanks in advance
>Richard
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