Universal Analog Frontend for Industrial Temperature Measurement

International Journal of P2P Network Trends and Technology (IJPTT)          
© 2015 by IJPTT Journal
Volume - 5 Issue - 1
Year of Publication : 2015
Authors : Shobha Nikam , Yogesh Patil , Kaustubh Rajvaidya , Vinay Kumar
DOI :  10.14445/22492615/IJPTT-V16P401


Shobha Nikam , Yogesh Patil , Kaustubh Rajvaidya , Vinay Kumar. "Universal Analog Frontend for Industrial Temperature Measurement". International Journal of P2P Network Trends and Technology (IJPTT), V5(1):25-29 Feb 2015,  ISSN:2249-2615, www.ijpttjournal.org, Published by Seventh Sense Research Group.


In industrial environments, high-temperature measurements are required for process control, safety evaluation, reliability prediction, product liability, and quality control. Temperature is one of the most measured parameters within industry and science. A correct measurement is of great importance to the quality of the product, as well as to security and to energy consumption. Therefore, it is very important to choose the right sensor for the actual application. However, a 100% ideal solution for a measuring job is difficult to find if not to say impossible. The choice will often be a compromise between the requirements of the user and the limitations set by the sensor types that are suitable for the conditions at the measuring point. To choose the right temperature sensor and the right method to transmit temperature data is the most important task. Having chosen the optimal temperature sensor for a measuring task, next step in remote temperature measurement is to send information from the temperature sensor to the control room. Connecting the thermocouple or the resistance thermometer directly with a cable can do this, or you can have a transmitter placed close to the temperature sensor, from which an amplified signal is sent to the control room. But this can introduce errors. Our project incorporates the use of a signal conditioning circuitry that is compatible to different kinds of temperature sensors thus overcoming the above drawbacks. Universal analog front end is a compact field mountable modular system which directly interfaces thermocouple/ RTD sensors of a particular instrumentation and control system, performs signal conditioning with high accuracy & precision and transmits data over mod bus/RS-232 to a control & monitoring system with Elipse E3 SCADA software.


[1]Analog devices,CN-0287 Circuit Note ,Isolated 4 channel thermocouple/RTD measurement system with 0.5 C accuracy.
[2]Adler, C.B., “Reliability Aspects of Temperature Measurement,” Instrumentation, Systems, and Automation Society Conference, Chicago, 2001.
[3]Bediones, D. and Wang, T.P., “Criteria for the Selection of Thermocouples Versus RTD’s in Industrial Applications,” Paper #91–0300, Instrumentation Systems, and Automation Society, Toronto, 1991.
[4] Bliss, P. and Morgan, R.K., “Errors in Temperature Measurement,” Instrumentation Technology, March 1971.
[5] Desmarais, R. and Breuer, J., “How to Select and Use the Right Temperature Sensor,” Sensors, January 2001.
[6] Kreider, K., “Thermocouple Research at NIST,” Paper #91–0301, Instrument Society of America Conference, Toronto, 1991.
[7] Magison, E., Temperature measurement, InTech, October 25, 2001.
[8] Langan, P.E. and Ironside, D.S., “Calibration Ensures Accurate Temperature Measurement,” InTech, October 1989.
[9] Leewis, W., “The International Temperature Scale of 1990,” Paper #91–0302, Instrument Instrumentation, Systems, and Automation Society Conference, 1991.
[10] Temperature sensors Lipták, B. G.; Rall, D.; Moore, L. W.; Adler, B. // InTech;Aug2004, Vol. 51 Issue 8, p61
[11] Elipse E3 server, studio and viewer E3 user manual.

High temperature measurement, quality control, optimal temperature sensor, signal conditioning circuitry, compact field mountable, high accuracy & precision.