Temperature Monitoring for Rotating Contacts

http://www.bing.com/search?q=laser+thermometer&src=IE-Address

Go for Masibus Controller 5006H. Simple to use, simple to configure for RTD or Thermocouple.

It comes with a LED display for monitoring purposes; very easily you can get the alarms for your required high or low temperature requirement - only one buzzer will be required.

Since it is a rotaning part. RTD can be installed on the brush...or go with laser thermometer.

Thanks everyone for the suggestions.... But Im searching for a system to monitor the temperature online...

Fine.

How is intended to get the measurement to where it is needed to be?

[Few CR4 postings with only one sentence contain enough information to receive a concise reply, and the respondents are not known for their patience at games of "20 questions".]

http://www.omega.com/ppt/pptsc.asp?ref=OS-XL

Exergen's industrial division specializes in non-contact temperature monitoring. I have found their products easy to use, accurate and reliable.

Care must be exercised in determining proper placement of the sensor. The contact surface of the slipring has a very low emissivity, and is therefore difficult to measure accurately. I suggest aiming the sensor at the side of the ring, just below the contact surface.