Re: IR Temperature Sensor

On Mar 1, 2:14 pm, John Fields <jfie...@xxxxxxxxxxxxxxxxxxxxx> wrote:
On Sun, 1 Mar 2009 13:44:43 -0800 (PST), tran...@xxxxxxxxx wrote:
I am attempting to construct a temperature sensor that will activate
several relays when the thermometer senses temperatures above 150
degrees Celsius, or ignition point for decayed wood. Unfortunately I
have only been able to find this plan online, which has far more
features than I need.

http://www.electronics-lab.com/projects/test/023/index.html

If anyone knows of a circuit diagram that would be more to my needs or
has suggestions of any sort, I would be extremely grateful. If you
have any questions feel free to email me at tran...@xxxxxxxxxx

---
What do you mean by "IR temperature sensor"?

JF  

By IR sensor I mean like the kind you can find in a computer mouse or
motion detector, that can detect infrared energy (heat) and change the
resistance based on this (I think that is how they work, anyway). I am
trying to build a circuit where once the sensor is giving the correct
signal back, a relay will be tripped, activating another circuit I am
building.
.

Relevant Pages

  • Re: IR Temperature Sensor
    ... several relays when the thermometer senses temperatures above 150 ... you're happy to burn a bit of power and continuously power a relay ... An IR circuit would burn a bit of power anyhow. ... a candle) and then when the IR sensor is facing it if the IR ...
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  • Re: IR Temperature Sensor
    ... several relays when the thermometer senses temperatures above 150 ... you're happy to burn a bit of power and continuously power a relay ... An IR circuit would burn a bit of power anyhow. ... a candle) and then when the IR sensor is facing it if the IR ...
    (sci.electronics.basics)
  • Re: IR Temperature Sensor
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  • Re: IR Temperature Sensor
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