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International Journal of Modern Physics and Application

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Calibration of Temperature Sensors for BARC, Mumbai Using In-House Developed Magnetoresistance Setup at TIFR, Mumbai

International Journal of Modern Physics and Application
Vol.4 , No. 3, Publication Date: Aug. 8, 2017, Page: 12-18

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Authors

[1]	Arun Patade, DCMP&MS, Tata Institute of Fundamental Research, Colaba, Mumbai, India.
[2]	Kadayam Venkatraman Srinivasan, Low Temperature Facility, Tata Institute of Fundamental Research, Colaba, Mumbai, India.
[3]	Devendra Buddhikot, DCMP&MS, Tata Institute of Fundamental Research, Colaba, Mumbai, India.
[4]	Anindya Chakravarty, Cryo-Technology Division, BARC, Mumbai, India.
[5]	Vijay Arolkar, Low Temperature Facility, Tata Institute of Fundamental Research, Colaba, Mumbai, India.

Abstract

Cryogenic temperature sensors of various types covering the entire range of measurement right from the room temperature down to 4.2 K needs to be calibrated to meet the stringent requirements on temperature control in most cryogenic applications. For some critical applications in BARC, Mumbai such as the newly developed Helium Liquefaction/Refrigeration system, many temperature sensors were calibrated using a magnetoresistance setup designed and developed at TIFR, Mumbai. The sensors are calibrated against a pre-calibrated temperature sensor. Both the pre-calibrated sensor and the sensor to be calibrated are connected to the temperature controller and the calibration data are acquired by varying temperature at small intervals from 4.2 K to 300 K. The data acquisition program is written in LabView®. This paper presents the calibration set-up, procedure, the quality assurance applied, the results of the calibration campaigns and a description of the usage of the calibrated temperature sensors.

Keywords

Sensors, Calibration, Variable Temperature Insert (VTI), Data Acquisition, Silicon Diode

Reference

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