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Chin. Phys. B, 2015, Vol. 24(4): 047402    DOI: 10.1088/1674-1056/24/4/047402
CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES Prev   Next  

Retrieval of original signals for superconducting quantum interference device operating in flux locked mode

Liu Dang-Ting (刘当婷), Tian Ye (田野), Zhao Shi-Ping (赵士平), Ren Yu-Feng (任育峰), Chen Geng-Hua (陈赓华)
Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
Abstract  

We discuss a simple relation between the input and output signals of a superconducting quantum interference device magnetometer operating in flux locked mode in a cosine curve approximation. According to this relation, an original fast input signal can be easily retrieved from its distorted output response. This technique can be used in some areas such as sensitive and fast detection of magnetic or metallic grains in medicine and food security checking.

Keywords:  SQUID magnetometer      signal retrieval  
Received:  05 November 2014      Revised:  09 January 2015      Accepted manuscript online: 
PACS:  74.50.+r (Tunneling phenomena; Josephson effects)  
  85.25.Dq (Superconducting quantum interference devices (SQUIDs))  
  07.55.Ge (Magnetometers for magnetic field measurements)  
Corresponding Authors:  Tian Ye     E-mail:  yetian@aphy.iphy.ac.cn

Cite this article: 

Liu Dang-Ting (刘当婷), Tian Ye (田野), Zhao Shi-Ping (赵士平), Ren Yu-Feng (任育峰), Chen Geng-Hua (陈赓华) Retrieval of original signals for superconducting quantum interference device operating in flux locked mode 2015 Chin. Phys. B 24 047402

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