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Entry  Mon Aug 14 09:49:18 2017, Kira, Update, PEM, temperature sensor IMG_20170814_092452.jpgIMG_20170814_092513.jpg
    Reply  Mon Aug 14 12:52:33 2017, Kira, Update, PEM, temperature sensor IMG_20170814_121131.jpgIMG_20170814_121139.jpgIMG_20170814_121758~2.jpg
       Reply  Tue Aug 15 13:32:38 2017, Kira, Update, PEM, temperature sensor 
Message ID: 13202     Entry time: Mon Aug 14 09:49:18 2017     Reply to this: 13203
Author: Kira 
Type: Update 
Category: PEM 
Subject: temperature sensor 

Decided to try adding in an OP amp just to see if it would work. Added LT1012 and a 100k resistor to the circuit (I originally wanted to do AD743 as it seems to be the best choice according to Zach's elog here, but it said that they are very precious so I went with LT1012 for testing purposes). When heating it with a heating gun, the output voltage went down by a few 0.01V. The maximum voltage was 0.686V. Similar thing happened when I switched to a 10k resistor, where the maximum was 0.705V and it also went down by a few 0.01V upon heating.

I've attached a few pictures showing the circuit.

Attachment 1: IMG_20170814_092452.jpg  3.177 MB  | Show | Show all
Attachment 2: IMG_20170814_092513.jpg  2.905 MB  | Show | Show all
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