Temperature Measurement of Rotating Cylinders

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raovasuki17 Active Contributor Join Date: Apr 2010 Posts: 16	Temperature Measurement of Rotating Cylinders 04/08/2010 3:50 AM
	Can somebody suggest me what type of instrument i have to use to check the temperature of a Rotating cylinder using contact method?
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Anonymous Poster	#1 Re: temperature measurement 04/08/2010 3:59 AM
	http://en.wikipedia.org/wiki/Infrared_thermometer
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raovasuki17 Active Contributor Join Date: Apr 2010 Posts: 16	#2 In reply to #1 Re: temperature measurement 04/08/2010 4:11 AM
	I am looking for contact type to measure the temperature of rotating cylinder. if i use non contact type while the temperature measured area is moving, i mean rotating , it will give you errorneos readings
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PWSlack Guru Join Date: Jan 2007 Location: In the bothy, 7 chains down the line from Dodman's Lane level crossing, in the nation formerly known as Great Britain. Kettle's on. Posts: 32175 Good Answers: 839	#3 In reply to #2 Re: temperature measurement 04/08/2010 4:14 AM
	What is the ambient temperature? How hot is the cylinder, approximately? What does the cylinder do? How big is the cylinder? Why is accurate temperature measurement of the cylinder important? Which part will wear preferentially as a result of contact temperature measurement - the cylinder or the sensor? Does it matter if the cylinder gets scratched or grooved, for example? How long must the sensor survive while it is wearing? __________________ "Did you get my e-mail?" - "The biggest problem in communication is the illusion that it has taken place" - George Bernard Shaw, 1856
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raovasuki17 Active Contributor Join Date: Apr 2010 Posts: 16	#4 In reply to #3 Re: temperature measurement 04/08/2010 4:26 AM
	Ambient temperature is 45 degCentigrade cylinder will be around 45 to 50 deg centi ( Hot Godet steel Rolls) cylinder will be used to pass the polymer yarns from one section to another with hot circulating oil inside the roller cylinder is aroun 350mm diameter accurate temperature measurement is needed to make sure that the elongation of the polymer yarns is under control limits basically there will not be any wear in the cylinder surface. ofcourse it matters if cylinder get too big scratches time is 5 to 10 seconds regards vasuki rao
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PWSlack Guru Join Date: Jan 2007 Location: In the bothy, 7 chains down the line from Dodman's Lane level crossing, in the nation formerly known as Great Britain. Kettle's on. Posts: 32175 Good Answers: 839	#6 In reply to #4 Re: temperature measurement 04/08/2010 5:33 AM
	So, one could measure the temperature of the heating oil passing through instead of the cylinder itself. Any number of commercially-available sensors will do this accurately. Or, one might control the ambient temperature instead and do away with the hot oil system.... __________________ "Did you get my e-mail?" - "The biggest problem in communication is the illusion that it has taken place" - George Bernard Shaw, 1856
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virupaksha Participant Join Date: Oct 2009 Posts: 4	#5 Re: temperature measurement 04/08/2010 5:17 AM
	Try with Laser Radiation temperature meter for more details about this instrument contact www.raytek.com
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JohnDG Guru Join Date: May 2006 Location: Reading, Berkshire, UK. Going under cover. Posts: 9684 Good Answers: 468	#7 Re: temperature measurement 04/08/2010 7:03 AM
	Are you trying to measure at a distinct point or points on the cylinder, or do you want an average for the surface temperature? __________________ "Love justice, you who rule the world" - Dante Alighieri
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raovasuki17 Active Contributor Join Date: Apr 2010 Posts: 16	#8 In reply to #7 Re: temperature measurement 04/08/2010 7:45 AM
	i am trying to measure temperatures of at least six zones . the length of the cylinder is 2 m regards vasuki rao
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PWSlack Guru Join Date: Jan 2007 Location: In the bothy, 7 chains down the line from Dodman's Lane level crossing, in the nation formerly known as Great Britain. Kettle's on. Posts: 32175 Good Answers: 839	#9 In reply to #8 Re: temperature measurement 04/14/2010 10:31 AM
	Just measure the oil temperature at the inlet and outlet connections, and interpolate? __________________ "Did you get my e-mail?" - "The biggest problem in communication is the illusion that it has taken place" - George Bernard Shaw, 1856
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Anonymous Poster	#10 Re: Temperature Measurement of Rotating Cylinders 04/28/2010 2:54 PM
	Try Omega. They have many different types of temperature sensors.
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Anonymous Poster (2); JohnDG (1); PWSlack (3); raovasuki17 (3); virupaksha (1)

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