Temperature Measurement on Moving Parts

Thank you for that answer. I will investigate further.

Electoman is 100% correct. Infrared units can, for low temp hand helds, run about $100, to many thousands for more sophisticated units. I'm sure you can find what you need here:

http://www.newark.com/

or here:

www.omega.com

It sounds like this is exactly what you need.

Thank you for that answer. I will investigate further.

Don't investigate, use it!

Get a good quality infrared temperature sensor and then obtain the emissitivity of your product. Think of emissitivity as a correction factor. It will compensate for the reflectivity of the aluminum and give you accurate readings.

Since you're measuring only one type of product (aluminum can ends), you won't have any problems using infrared. Once you set your emissitivity, you're good to go and your measurements will be consistent.

About 15 years ago, I worked for a company in Concord, MA that manufactured non-contact IR sensors.. Williamson Corp What you are trying to do is what they do..!

Good Luck..!

please send your full details with diagram & what you want online or ff line temp. measurements.

ashok chauhan

Tycon automation

Both Raytek and LAND have good products and broad industrial experience in difficult applications.

I would suggest you go towards an OEM supplier rether than a catalog shop like Omega for local technical support. You should be able to have convincing demos from your local distributor.

See http://temperatures.com/ for very interresting and educative content.

I don't think a cheap handheld is in order here. I think a permanent mount, with emissivity control is in order. The cheap handheld are fine for a spot check, but their reproducibility is in question. After all, this sounds like a multi-million dollar process line here.

http://www.raytek.com/Raytek/en-r0/ProductsAndAccessories/InfraredPointSensors/ThermalertSeries/Raytek+XR/Default.htm

There a bit of money up front, but rock solid, with great customer support.

Thanks Bricktop, yes it is a very large operation and it is a number of fixed thermocouples that we need to replace. We tried many models but always the problem was that not only the reflection from the Aluminium but also that the lines move at approx 30 ft a minute. We tried various models but always had to revert to the old tried and tested but not maintenance free thermocouples.

Sorry that last reply was from me but I inadvertently made the comment without logging in. Mea Culpa

I have worked for a number of companies in Ireland, if you want to chat over any problems please just give me a call or have a look at my website, if you still have problems.

www.marchdesigns.com

John.

Yes, at my company we use many Raytec products. Raytec is a division of Fluke instruments. You would be wise to contact Raytec and have a rep. come to your factory, and tailor a system to meet your needs. I know they have high speed units too. As stated before, they're not cheap, but they are very dependable, highly accurate, and their customer support is unsurpassed.

Good Luck!

Uh huh, obviously we cannot see what your process looks like so we can only give advice on products and not solutions.

Best way is to contact a sales rep or sales engineer (is there a difference? ).