Previous in Forum: Impulse tubing procedure   Next in Forum: What is a HART Communicator?
Close

Comments Format:






Change Mode
Close

Subscribe to Discussion:

CR4 allows you to "subscribe" to a discussion
so that you can be notified of new comments to
the discussion via email.

Close

Rating Vote:







Add Vote
Rate Comments: Nested
Anonymous Poster

temperature sensor

01/12/2009 12:53 AM

I found a temperature sensor/switch(I am not sure) which when dipped in liquid,a bulb glows dimly connected in series to it. Now,when the temperature of the liquid reaches a particular value,the bulb glows brightly. Can anyone tel me what this sensor is and how it works?
Reply
Interested in this topic? By joining CR4 you can "subscribe" to
this discussion and receive notification when new comments are added.
craigza
Power-User
South Africa - Member -

Join Date: Nov 2008
Location: Johannesburg
Posts: 295
Good Answers: 12
#1

Re: temperature sensor

01/14/2009 1:36 AM

Hi there,

If you do not have an external voltage connected in the circuit - then it sounds as if you have a temperature sensor known as a thermocouple. You have two dissimilar materials and they generate voltage potential as the temperature changes. Seebeck discovered this principle.

For more information: http://en.wikipedia.org/wiki/Thermocouple

Regards,

Craig
Reply
Reply to Forum Thread
Have a Different Question?

Previous in Forum: Impulse tubing procedure   Next in Forum: What is a HART Communicator?

Advertisement

Got Something to Say?
Ask a Question
Start a Discussion

Search this Forum
Instrumentation:
Go

CR4 Sections
Aerospace
BioMech & BioMed
Chemical & Material Science
Civil Engineering
Communications & Electronics
Education and Engineering Careers
Electrical Engineering
General Discussion
Instrumentation
Manufacturing
Mechanical Engineering
New Technologies & Research
Software & Programming
Sustainable Engineering
Transportation

Site Directories
Forum Directory
Blog Directory
User Group Directory
RSS Feeds

CR4 Rules of Conduct
CR4 FAQ
Site Glossary

Who's Online (75 right now)
Show Members
Advertisement