SQUID readout electronics and magnetometric systems for practical applications / Yi Zhang [and 4 others].

Format:

Book

Author/Creator:

Zhang, Yi, author.

Xie, Xiaoming, author.

Dong, Hui, author.

Zhang, Guofeng, author.

Krause, Hans-Joachim, author.

Contributor:

Wiley InterScience (Online service)

Language:

English

Subjects (All):

Superconducting quantum interference devices.

Electronics.

Physical Description:

1 online resource (xi, 229 pages) : illustrations

Place of Publication:

Weinheim, Germany : Wiley-VCH, [2020]

System Details:

text file

Contents:

Cover

Title Page

Copyright

Contents

Preface

Acknowledgments

Chapter 1 Introduction

1.1 Motivation

1.2 Contents of the Chapters

References

Chapter 2 Josephson Junctions

2.1 Josephson Equations

2.2 RCSJ Model

Chapter 3 dc SQUID's I-V Characteristics and Its Bias Modes

3.1 SQUID's I-V Characteristics

3.2 An Ideal Current Source

3.3 A Practical Voltage Source

Chapter 4 Functions of the SQUID's Readout Electronics

4.1 Selection of the SQUID's Bias Mode

4.2 Flux Locked Loop (FLL)

4.2.1 Principle of the FLL

4.2.2 Electronic Circuit of the FLL and the Selection of the Working Point

4.2.3 "Locked" and "Unlocked" Cases in the FLL

4.2.4 Slew Rate of the SQUID System

4.3 Suppressing the Noise Contribution from the Preamplifier

4.4 Two Models of a dc SQUID

Chapter 5 Direct Readout Scheme (DRS)

5.1 Introduction

5.2 Readout Electronics Noise in DRS

5.2.1 Noise Characteristics of Two Types of Preamplifiers

5.2.2 Noise Contribution of a Preamplifier with Different Source Resistors

5.3 Chain Rule and Flux Noise Contribution of a Preamplifier

5.3.1 Test Circuit Using the Same Preamplifier in Both Bias Modes

5.3.2 Noise Measurements in Both Bias Modes

5.4 Summary of the DRS

Chapter 6 SQUID Magnetometric System and SQUID Parameters

6.1 Field-to-Flux Transformer Circuit (Converter)

6.2 Three Dimensionless Characteristic Parameters, c, , and L, in SQUID Operation

6.2.1 SQUID's Nominal Stewart-McCumber Characteristic Parameter c

6.2.2 SQUID's Nominal Thermal Noise Parameter

6.2.3 SQUID's Screening Parameter L

6.2.4 Discussion on the Three Characteristic Parameters

References

Chapter 7 Flux Modulation Scheme (FMS)

7.1 Mixed Bias Modes

7.2 Conventional Explanation for the FMS

7.2.1 Schematic Diagram of the FMS

7.2.2 Time Domain and Flux Domain

7.2.3 Flux Modulation

7.2.4 Five Additional Notes

7.3 FMS Revisited

7.3.1 Bias Mode in FMS

7.3.2 Basic Consideration of Synchronous Measurements of Is and Vs

7.3.3 Experimental Synchronous Measurements of [delta]i and VRs

7.3.4 Transfer Characteristics of the Step-Up Transformer

7.3.5 V Comparison Obtained by DRS and FMS

7.4 Conclusion

Chapter 8 Flux Feedback Concepts and Parallel Feedback Circuit

8.1 Flux Feedback Concepts and History

8.2 SQUID's Apparent Parameters

8.3 Parallel Feedback Circuit (PFC)

8.3.1 Working Principle of the PFC in Current Bias Mode

8.3.2 Working Principle of PFC in Voltage Bias Mode

8.3.3 Brief Summary of Qualitative Analyses of PFC

8.4 Quantitative Analyses and Experimental Verification of the PFC in Voltage Bias Mode

8.4.1 The Equivalent Circuit with the PFC in Voltage Bias Mode

8.4.2 Introduction of Two Dimensionless Parameters r and

8.4.3 Numerical Calculations

8.4.4 Experimental Results

Notes:

Includes bibliographical references and index.

Electronic reproduction. Hoboken, N.J. Available via World Wide Web.

Description based on online resource; title from digital title page (viewed on July 27, 2020).

Other Format:

Print version: Xie, Xiaoming SQUID Readout Electronics and Magnetometric Systems for Practical Applications

ISBN:

9783527816514

3527816518

9783527816507

352781650X

9783527816521

3527816526

Publisher Number:

99987466792

Access Restriction:

Restricted for use by site license.