how to measure temp in an aggresive environment?
how to measure temp in an aggresive environment?
(OP)
The machine we manufacture needs a temperature feedback control added to it.
Problem is, the part of the machine i need to measure is rotating in mid-air at 800rpm in a mineral grinding chamber.
I've been racking by brains on this one and decided to try a thermocouple to start with ( but open to any ideas ? )
Any ideas where to start, with highly abrasive,dusty,50g environments and how best to get the signal out, bearing in mind that its an extraodinarily difficult situation to monitor ?
TIA
Problem is, the part of the machine i need to measure is rotating in mid-air at 800rpm in a mineral grinding chamber.
I've been racking by brains on this one and decided to try a thermocouple to start with ( but open to any ideas ? )
Any ideas where to start, with highly abrasive,dusty,50g environments and how best to get the signal out, bearing in mind that its an extraodinarily difficult situation to monitor ?
TIA





RE: how to measure temp in an aggresive environment?
Gunnar Englund
www.gke.org
RE: how to measure temp in an aggresive environment?
RE: how to measure temp in an aggresive environment?
However, its the 'process' of the grinding i need to measure the temp of - actually in the chamber. Can't do it at entry or exits either.
Been looking at Dwyer stuff - but nothing seems suitable yet.
RE: how to measure temp in an aggresive environment?
Gunnar Englund
www.gke.org
RE: how to measure temp in an aggresive environment?
I know there are many level transmitters that are now wireless, but not sure about temperature. It's not normally something I would do if I'm using the signal for control - I'd only use it for indication, but it's a possibility.
The temperature element could be placed inside wherever you like. The housing could be built to handle the environment. The receiver could be located outside of the environment.
Another downside would be changing the batteries every so often. So if this is a continuous process, forget about it.
RE: how to measure temp in an aggresive environment?
The system it rotating in 1,500 rpm with the generator rotor and transmite the temperature (4 channels) to an outside reader.
If soung interesting, please write and I will look for and send the full details. System quite expensive.
Leave a note here or at: iarie@yahoo.com
RE: how to measure temp in an aggresive environment?
TTFN
RE: how to measure temp in an aggresive environment?
Does your system - or can it be configured to - detect ground faults on the rotor between the rotor bars and the rotor forging? We have a lot of troubles with our existing GF monitor system: power supply conditions aren't great, shaft speed is 3000rpm, lots of heavy current, high voltage etc. Sounds like you might have addressed some of this already.
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RE: how to measure temp in an aggresive environment?
I notice you havent given a temperature range indication.
Here is a link with with usefull wireless temperature technology.
ht
And a nice one operated with batteries and updates every 10s not bad for monitoring. Batteries last about 2 years they say pending on your pulse delay
http:/
Hope it helps
Rheinhardt
--Off all the things i've lost , i miss my mind the most--