How to convert temperature to voltage

nisha.r · **Joined:** Sun May 15, 2005 9:26 am **Posts:** 1

I need help to know how to convert voltage to temperature. i am using platinum 100 rtd. is there any equation for that .

Sarah · **Posted:** Wed May 18, 2005 9:48 am

Hi

Thank you for your post.

Unfortunately I do not have an equation that I can supply you with. You may have to try and find this from the manufacturers of the sensor.

Best Regards

sam rzv · **Posted:** Sat Jul 08, 2006 1:15 pm

hi plz help me
i want temperature to voltage conversion circuit or any ic related to it

if u have than do reply

sam rzv · **Posted:** Sat Jul 08, 2006 1:21 pm

nisha.r wrote:

I need help to know how to convert voltage to temperature. i am using platinum 100 rtd. is there any equation for that .

i m also looking for a temperatue to voltage converter .
if u find it then do help me

Michael · **Posted:** Mon Jul 10, 2006 8:19 am

Hello,

There are various equations that can do this for you. There are also various lookup tables that can also perform this function.

A simple google search will find these for you:
http://www.picotech.com/applications/pt100.html
http://www.sensingdevices.com/prtd4.htm
http://www.google.co.uk/search?hl=en&q= ... arch&meta=

Or:
http://www.google.co.uk/search?hl=en&q= ... arch&meta=

Best regards,
Michael

Simii · **Posted:** Mon Jul 10, 2006 4:31 pm

hi
i want help in my project
i want any circuit related to change temperatue into voltage or temperature sensing ic with o/p voltage ranging from 0 -10 volt
temperature ranging from 0-100centigrade

o/p changing linearly with 100mV/C

if anyone can help than do reply.

sr19m57 · **Posted:** Wed Aug 16, 2006 2:09 am

Simii wrote:

hi
i want help in my project
i want any circuit related to change temperatue into voltage or temperature sensing ic with o/p voltage ranging from 0 -10 volt
temperature ranging from 0-100centigrade

o/p changing linearly with 100mV/C

if anyone can help than do reply.

Use an LM-35 (0-100 mV represents 0-100 C) and an appropriate amplifier with the required gain (100) to get 0-10 Volts.

Guest · **Posted:** Mon Mar 23, 2009 10:11 pm

I have this project and i need any devise that can sense temperature in a refrigerator and convert it to voltage that my radio can relay to the base station, Can any body help me with this

saqib · **Posted:** Tue Aug 03, 2010 6:24 pm

[quote="nisha.r"]I need help to know how to convert voltage to temperature. i am using platinum 100 rtd. is there any equation for that .[/quote]

ziko · **Posted:** Wed Aug 04, 2010 10:14 am

Hi this may not be practical as the voltage change will be small and you would need a highly accurate measuring device. This is why we have a unit designed to do this:

http://www.picotech.com/pt100.html

What temperature range are you looking at ? It may be more practical to use a thermistor.

Kind regards

Pico Technology

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