NDLI: A precise low-temperature measurement system for conduction cooling Nb3Al superconducting magnet

Content Provider	IEEE Xplore Digital Library
Author	Chen Chuan Bai Zhiming Yang Bin Zhou Hongfei
Copyright Year	2015
Description	Author affiliation: Sch. of Sci., Northeastern Univ., Shenyang, China (Bai Zhiming) \|\| Baosheng Sci. & Technol. Innovation Ltd. Co., Yangzhou, China (Zhou Hongfei) \|\| Sch. of Mater. & Metall., Northeastern Univ., Shenyang, China (Chen Chuan) \|\| Sch. of Inf. Sci. & Eng., Northeastern Univ., Shenyang, China (Yang Bin)
Abstract	The precise measurement of temperature is very important to the security and stability of the operation for a superconducting magnet. A slight fluctuation in the operating temperature may cause a superconducting magnet unstable. This paper presents a low-temperature measurement system based on C8051 Micro Controller Unit and Platinum resistance thermometer. In the process of data acquisition, a modified weighted average algorithm is applied to the digital filter program of the micro controller unit. The noise can be effectively reduced and can measure temperature of three different location points simultaneously, and there is no the interference among the three channels. The designed system could measure the temperature from 400 K to 4.0 K with a resolution of 1 mK. This system will be applied in a conduction cooling $Nb_{3}Al$ superconducting magnet. In order to certify the feasibility of the system, tests are performed in a small NbTi non-insulation superconducting magnet model. The results show that the measurement system is reliable and the measured temperature is accurate.
Starting Page	4270
Ending Page	4273
File Size	687676
Page Count	4
File Format	PDF
e-ISBN	9781479970179
DOI	10.1109/CCDC.2015.7162680
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2015-05-23
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Temperature measurement Resistance Temperature sensors Weighted Average algorithm Cooling Precise Temperature Measurement Current measurement Superconducting Magnet Superconducting magnets Electrical resistance measurement C8051 Microcontroller
Content Type	Text
Resource Type	Article

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