001019319 001__ 1019319
001019319 005__ 20231213202053.0
001019319 037__ $$aFZJ-2023-05293
001019319 041__ $$aEnglish
001019319 1001_ $$0P:(DE-Juel1)128754$$aZhang, Yi$$b0$$eCorresponding author
001019319 1112_ $$aInternational Superconductive Electronics Conference$$cNanjing$$d2023-11-10 - 2023-11-13$$gISEC 2023$$wPeoples R China
001019319 245__ $$aHow to read out SQUID
001019319 260__ $$c2023
001019319 3367_ $$033$$2EndNote$$aConference Paper
001019319 3367_ $$2DataCite$$aOther
001019319 3367_ $$2BibTeX$$aINPROCEEDINGS
001019319 3367_ $$2DRIVER$$aconferenceObject
001019319 3367_ $$2ORCID$$aLECTURE_SPEECH
001019319 3367_ $$0PUB:(DE-HGF)6$$2PUB:(DE-HGF)$$aConference Presentation$$bconf$$mconf$$s1702453118_10687$$xInvited
001019319 520__ $$aA SQUID system comprises a SQUID sensor and its associated readout electronics, which are essential for its operation. Despite its potential for high sensitivity to magnetic flux (or, field), the widespread use of SQUID systems has often been hindered by difficulties in producing and comprehending the required readout electronics. To overcome this challenge, recent research has taken a unique approach by considering the SQUID system from both the perspectives of the SQUID sensor and its accompanying readout electronics. There are two primary design concepts for SQUID systems: (1) employing strongly damped SQUID with very low intrinsic noise and minimizing the noise generated by the readout electronics to a value below the intrinsic noise of the SQUID sensor; or (2) creating a SQUID system where both noise sources, intrinsic SQUID noise and electronics noise, coexist and are approximately equal. However, implementing traditional design concept (1) for SQUID system presents significant challenges for the readout technique, whereas design concept (2) is comparatively easier to realize. In this comprehensive analysis, we summarize the SQUID readout principles of design concept (1), including conventional SQUID systems with flux modulation scheme (FMS), and further developments of this concept, such as additional positive feedback (APF), bias current feedback (BCF), noise cancellation (NC) and so forth. Furthermore, we introduce design concept (2), commonly referred to as the "weakly damped scheme." We explain and categorize all these readout techniques and discuss their advantages and drawbacks, aiming to provide a useful comprehensive analysis (an in-depth examination of SQUID readout) that bridges the gap between SQUID concept and its practical implementation.
001019319 536__ $$0G:(DE-HGF)POF4-5241$$a5241 - Molecular Information Processing in Cellular Systems (POF4-524)$$cPOF4-524$$fPOF IV$$x0
001019319 7001_ $$0P:(DE-Juel1)128697$$aKrause, Hans-Joachim$$b1$$ufzj
001019319 909CO $$ooai:juser.fz-juelich.de:1019319$$pVDB
001019319 9101_ $$0I:(DE-588b)5008462-8$$6P:(DE-Juel1)128697$$aForschungszentrum Jülich$$b1$$kFZJ
001019319 9131_ $$0G:(DE-HGF)POF4-524$$1G:(DE-HGF)POF4-520$$2G:(DE-HGF)POF4-500$$3G:(DE-HGF)POF4$$4G:(DE-HGF)POF$$9G:(DE-HGF)POF4-5241$$aDE-HGF$$bKey Technologies$$lNatural, Artificial and Cognitive Information Processing$$vMolecular and Cellular Information Processing$$x0
001019319 9141_ $$y2023
001019319 920__ $$lyes
001019319 9201_ $$0I:(DE-Juel1)IBI-3-20200312$$kIBI-3$$lBioelektronik$$x0
001019319 980__ $$aconf
001019319 980__ $$aVDB
001019319 980__ $$aI:(DE-Juel1)IBI-3-20200312
001019319 980__ $$aUNRESTRICTED