Re: A resistor at 150°C...how?

From: John Fields (jfields_at_austininstruments.com)
Date: 11/24/04 

Date: Wed, 24 Nov 2004 09:14:28 -0600

On Wed, 24 Nov 2004 10:41:38 +0000 (UTC), "Francesco Piantedosi"
<cicciospice@libero.it> wrote:

>Hi all,
>I have to buil a circuit to use a resistor as a heater; what I want is
>to use this resistor to heat a surface at 150 °C.
>
>My first problem is to choose right resistor(I have ONLY 15 mm diameter)
>able to dissipate this heat power without crash! 

---
I don't understand what you mean by 15mm diameter.  Is that the area
of a circle you have to heat or the diameter of a hole into which you
want to insert a resistor or ???
---  
>The second problem is design ctemperature control circuit...the
>sensor(LM35 or lm45) should be in contact with surface I have to heat
>and give feedback to power supply of my resistor...any ideas?
---
Accuracy?
Resolution?
Response time?
Power supply voltage/current available?
-- 
John Fields
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