# How to convert temperature to voltage

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### How to convert temperature to voltage

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

Posts: 1
Joined: Sun May 15, 2005 9:26 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
Sarah

### temperature to voltage

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

### Re: How to convert temperature to voltage

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
sam rzv

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
Michael - Tech Support
Pico Technology
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Michael
Advanced User

Posts: 656
Joined: Thu Jul 07, 2005 12:41 pm
Location: St Neots, Cambridgeshire

### temperature sensor

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.
Simii

### Re: temperature sensor

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.
sr19m57

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
Guest

### Re: How to convert temperature to voltage

[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]
saqib

### Re: How to convert temperature to voltage

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
Ziko

Technical Specialist
ziko
Advanced User

Posts: 1705
Joined: Fri Dec 01, 2006 10:03 am
Location: St Neots

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