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  #1  
Old 04-29-2012, 08:01 AM
vick5821 vick5821 is offline
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Default Heat Detector Circuit
Hey, having some problem in this type of circuit. Can I use LM 35 as the heat sensor ? Or any other sensor which is better to sense heat from a distance ? HELP....URGENT
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Old 04-29-2012, 08:21 AM
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debjit625 debjit625 is offline
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Quote:
Hey, having some problem in this type of circuit.

What type of circuit?
Quote:
Can I use LM 35 as the heat sensor?

It’s a temperature sensor, and heat could describe by temperature so yes LM35 could be used.
Quote:
Or any other sensor which is better to sense heat from a distance? HELP....URGENT

Any temperature sensor can sense heat, if you keep it away from the source of heat then it will measure the ambient temperature of the heat source , obviously the measurement will depend on how far you are measuring.

Thermocouples could also be used as temperature sensor.

Good Luck
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Old 04-29-2012, 10:34 AM
vick5821 vick5821 is offline
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I am doing heat detector circuit..

But LM 35 I need to bring the heat and touch the boayd of LM 35 then only the voltage changes?
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Old 04-29-2012, 11:50 AM
KMoffett KMoffett is offline
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As far as I know almost all heat detectors are contact or ambient (air contact). The only heat detectors that measure from a "distance" are infrared optical sensors.

Ken
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Old 04-29-2012, 12:12 PM
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Hello,

Take a look at the following page:
http://www.capgo.com/Resources/Tempe...mpSensors.html

For Non-contact temperature measurements you can find this page on that site:
http://www.capgo.com/Resources/Tempe...onContact.html

This is a link from this page of the EDUCYPEDIA on Tempereture Sensors:
http://educypedia.karadimov.info/ele...ensorstemp.htm

Bertus
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Last edited by bertus; 04-29-2012 at 12:18 PM.
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Old 04-29-2012, 12:15 PM
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Hey Bert,

your first link to bohr.physics.hku.hk is broken.
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Old 04-29-2012, 12:24 PM
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Hello,

I have exchanged it for an other one.

Bertus
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