A dual SQUID linearization concept using a phase modulation scheme
A critical control system evaluation is presented of basic flux-locked loop systems. The development of a new superconducting quantum interference device (SQUID) linearization method is then described, where no magnetic flux feedback is necessary to cancel the applied flux. It is shown that a dual S...
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| Veröffentlicht in: | IEEE transactions on applied superconductivity 1998-09, Vol.8 (3), p.125-131 |
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| container_end_page | 131 |
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| container_issue | 3 |
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| container_title | IEEE transactions on applied superconductivity |
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| creator | Basso, V.G. Perold, W.J. Lourens, J.G. |
| description | A critical control system evaluation is presented of basic flux-locked loop systems. The development of a new superconducting quantum interference device (SQUID) linearization method is then described, where no magnetic flux feedback is necessary to cancel the applied flux. It is shown that a dual SQUID configuration will be able to produce a true phase modulation system that is easily demodulated with a phase-locked loop. The theoretical performance of the proposed configuration is verified by simulations, and the performance and limitations are discussed in detail. It is shown that small dc correction voltages at the output of the SQUID's significantly decrease output noise, as is the case with an increase in SQUID dc bias currents. An optional feedback system is also described for optimal performance of the dual SQUID configuration. |
| doi_str_mv | 10.1109/77.712143 |
| format | Article |
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The development of a new superconducting quantum interference device (SQUID) linearization method is then described, where no magnetic flux feedback is necessary to cancel the applied flux. It is shown that a dual SQUID configuration will be able to produce a true phase modulation system that is easily demodulated with a phase-locked loop. The theoretical performance of the proposed configuration is verified by simulations, and the performance and limitations are discussed in detail. It is shown that small dc correction voltages at the output of the SQUID's significantly decrease output noise, as is the case with an increase in SQUID dc bias currents. An optional feedback system is also described for optimal performance of the dual SQUID configuration.</description><identifier>ISSN: 1051-8223</identifier><identifier>EISSN: 1558-2515</identifier><identifier>DOI: 10.1109/77.712143</identifier><identifier>CODEN: ITASE9</identifier><language>eng</language><publisher>New York, NY: IEEE</publisher><subject>Applied sciences ; Computer science; control theory; systems ; Control system analysis ; Control systems ; Control theory. Systems ; Electronics ; Exact sciences and technology ; Feedback ; Interference cancellation ; Magnetic flux ; Phase locked loops ; Phase modulation ; Semiconductor electronics. Microelectronics. Optoelectronics. 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The development of a new superconducting quantum interference device (SQUID) linearization method is then described, where no magnetic flux feedback is necessary to cancel the applied flux. It is shown that a dual SQUID configuration will be able to produce a true phase modulation system that is easily demodulated with a phase-locked loop. The theoretical performance of the proposed configuration is verified by simulations, and the performance and limitations are discussed in detail. It is shown that small dc correction voltages at the output of the SQUID's significantly decrease output noise, as is the case with an increase in SQUID dc bias currents. An optional feedback system is also described for optimal performance of the dual SQUID configuration.</description><subject>Applied sciences</subject><subject>Computer science; control theory; systems</subject><subject>Control system analysis</subject><subject>Control systems</subject><subject>Control theory. Systems</subject><subject>Electronics</subject><subject>Exact sciences and technology</subject><subject>Feedback</subject><subject>Interference cancellation</subject><subject>Magnetic flux</subject><subject>Phase locked loops</subject><subject>Phase modulation</subject><subject>Semiconductor electronics. Microelectronics. Optoelectronics. Solid state devices</subject><subject>SQUIDs</subject><subject>Superconducting device noise</subject><subject>Superconducting devices</subject><subject>Voltage</subject><issn>1051-8223</issn><issn>1558-2515</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1998</creationdate><recordtype>article</recordtype><sourceid>RIE</sourceid><recordid>eNo90MtLw0AQBvBFFKzVg1dPexDBQ-o-s9ljra9CQcR6DpPNxK7kZTY56F9vJKWnGZjffIePkEvOFpwze2fMwnDBlTwiM651EgnN9fG4M82jRAh5Ss5C-GKMq0TpGblf0nyAkr6_fawfaOlrhM7_Qu-bmrqmdtj2dAi-_qRA2x0EpFWTD-UEgtthhefkpIAy4MV-zsn26XG7eok2r8_r1XITOcniPioKEBqMjRW3LpegpbU6c4on6EyWqwxAo5ZOZpiYPFeCO22cQZvFoJiQc3IzxbZd8z1g6NPKB4dlCTU2Q0hFIhSTWo_wdoKua0LosEjbzlfQ_aScpf8lpcakU0mjvd6HQnBQFh3UzofDg5BWWMZGdjUxj4iH6z7jD_PTbcE</recordid><startdate>19980901</startdate><enddate>19980901</enddate><creator>Basso, V.G.</creator><creator>Perold, W.J.</creator><creator>Lourens, J.G.</creator><general>IEEE</general><general>Institute of Electrical and Electronics Engineers</general><scope>RIA</scope><scope>RIE</scope><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7U5</scope><scope>8FD</scope><scope>L7M</scope></search><sort><creationdate>19980901</creationdate><title>A dual SQUID linearization concept using a phase modulation scheme</title><author>Basso, V.G. ; Perold, W.J. ; Lourens, J.G.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c306t-ffa25a796419cd3a53995bc418ec7bd4baa5e53c3be87dd421c57c7e9b6a4023</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1998</creationdate><topic>Applied sciences</topic><topic>Computer science; control theory; systems</topic><topic>Control system analysis</topic><topic>Control systems</topic><topic>Control theory. Systems</topic><topic>Electronics</topic><topic>Exact sciences and technology</topic><topic>Feedback</topic><topic>Interference cancellation</topic><topic>Magnetic flux</topic><topic>Phase locked loops</topic><topic>Phase modulation</topic><topic>Semiconductor electronics. Microelectronics. Optoelectronics. Solid state devices</topic><topic>SQUIDs</topic><topic>Superconducting device noise</topic><topic>Superconducting devices</topic><topic>Voltage</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Basso, V.G.</creatorcontrib><creatorcontrib>Perold, W.J.</creatorcontrib><creatorcontrib>Lourens, J.G.</creatorcontrib><collection>IEEE All-Society Periodicals Package (ASPP) 1998-Present</collection><collection>IEEE Electronic Library (IEL)</collection><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>Technology Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>IEEE transactions on applied superconductivity</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>Basso, V.G.</au><au>Perold, W.J.</au><au>Lourens, J.G.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>A dual SQUID linearization concept using a phase modulation scheme</atitle><jtitle>IEEE transactions on applied superconductivity</jtitle><stitle>TASC</stitle><date>1998-09-01</date><risdate>1998</risdate><volume>8</volume><issue>3</issue><spage>125</spage><epage>131</epage><pages>125-131</pages><issn>1051-8223</issn><eissn>1558-2515</eissn><coden>ITASE9</coden><abstract>A critical control system evaluation is presented of basic flux-locked loop systems. The development of a new superconducting quantum interference device (SQUID) linearization method is then described, where no magnetic flux feedback is necessary to cancel the applied flux. It is shown that a dual SQUID configuration will be able to produce a true phase modulation system that is easily demodulated with a phase-locked loop. The theoretical performance of the proposed configuration is verified by simulations, and the performance and limitations are discussed in detail. It is shown that small dc correction voltages at the output of the SQUID's significantly decrease output noise, as is the case with an increase in SQUID dc bias currents. An optional feedback system is also described for optimal performance of the dual SQUID configuration.</abstract><cop>New York, NY</cop><pub>IEEE</pub><doi>10.1109/77.712143</doi><tpages>7</tpages></addata></record> |
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| ispartof | IEEE transactions on applied superconductivity, 1998-09, Vol.8 (3), p.125-131 |
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| source | IEEE Electronic Library (IEL) |
| subjects | Applied sciences Computer science control theory systems Control system analysis Control systems Control theory. Systems Electronics Exact sciences and technology Feedback Interference cancellation Magnetic flux Phase locked loops Phase modulation Semiconductor electronics. Microelectronics. Optoelectronics. Solid state devices SQUIDs Superconducting device noise Superconducting devices Voltage |
| title | A dual SQUID linearization concept using a phase modulation scheme |
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