Register to reply

Thermocouple-Uses and how it Works?

by PWhiting1
Tags: thermocoupleuses
Share this thread:
Jan11-08, 03:44 PM
P: 2
1. The problem statement, all variables and given/known data
I need to investigate how current in a diode varies with extreme temperatures. I have no idea how to do this but could a thermocouple somehow be incorporated into the investigation.

2. Relevant equations
Can a thermocouple be used to investigate this

3. The attempt at a solution
I have no idea how a thermocouple works or what it exactly does, so i have no attempted solutions.
Phys.Org News Partner Science news on
New model helps explain how provisions promote or reduce wildlife disease
Stress can make hard-working mongooses less likely to help in the future
Grammatical habits in written English reveal linguistic features of non-native speakers' languages
Jan11-08, 03:48 PM
Sci Advisor
HW Helper
P: 8,955
Not sure what you mean by looking at the current in the diode.
An intersting (and useful) property of diodes is that the forward voltage drop depends on temperature - this is used as a temperature sensor.

It doesn't really matter what you use as a sensor to make your measurements, thermocouples have the advantage that they are fairly small and so can be easily attached to a diode. You will need a thermocouple reader - some digital voltmeters have them built in.

Register to reply

Related Discussions
Differential Thermocouple Amp Engineering, Comp Sci, & Technology Homework 5
I was wondering why this works and if it works every time Calculus & Beyond Homework 3
Thermocouple homework Introductory Physics Homework 1
Thermocouple to measure the temperature of glass Electrical Engineering 8
Thermocouple and surface General Physics 1