Control and materials characterization System for 6T Superconducting Cryogen Free Magnet Facility at IUAC, New Delhi

26th International Cryogenic Engineering Conference & International Cryogenic Materials Conference 2016

材料科学;物理学

Dutt, R.N.^1 ; Meena, D.K.^2 ; Kar, S.^1 ; Soni, V.^1 ; Nadaf, A.^3 ; Das, A.^1 ; Singh, F.^1 ; Datta, T.S.^1

Inter University Accelerator Centre, Aruna Asaf Ali Marg, New Delhi, India^1

Indian Institute of Technology, Hauz Khas, New Delhi, India^2

National Institute of Technology, Rourkela

Odisha, India^3

关键词: Cryogenic temperatures;    Electrical transport characteristics;    Electrical transport properties;    Graphical user interfaces (GUI);    Materials characterization;    Measurement techniques;    Resistance measurement;    Variable temperature inserts;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/171/1/012138/pdf
DOI  :  10.1088/1757-899X/171/1/012138

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

A system for carrying out automatic experimental measurements of various electrical transport characteristics and their relation to magnetic fields for samples mounted on the sample holder on a Variable Temperature Insert (VTI) of the Cryogen Free Superconducting Magnet System (CFMS) has been developed. The control and characterization system is capable of monitoring, online plotting and history logging in real-time of cryogenic temperatures with the Silicon (Si) Diode and Zirconium Oxy-Nitride sensors installed inside the magnet facility. Electrical transport property measurements have been automated with implementation of current reversal resistance measurements and automatic temperature set-point ramping with the parameters of interest available in real-time as well as for later analysis. The Graphical User Interface (GUI) based system is user friendly to facilitate operations. An ingenious electronics for reading Zirconium Oxy-Nitride temperature sensors has been used. Price to performance ratio has been optimized by using in house developed measurement techniques mixed with specialized commercial cryogenic measurement / control equipment.