|
Showing 1 - 4 of
4 matches in All Departments
The book provides an in-depth understanding of the fundamentals of
superconducting electronics and the practical considerations for
the fabrication of superconducting electronic structures.
Additionally, it covers in detail the opportunities afforded by
superconductivity for uniquely sensitive electronic devices and
illustrates how these devices (in some cases employing
high-temperature, ceramic superconductors) can be applied in analog
and digital signal processing, laboratory instruments,
biomagnetism, geophysics, nondestructive evaluation and
radioastronomy. Improvements in cryocooler technology for
application to cryoelectronics are also covered. This is the first
book in several years to treat the fundamentals and applications of
superconducting electronics in a comprehensive manner, and it is
the very first book to consider the implications of
high-temperature, ceramic superconductors for superconducting
electronic devices. Not only does this new class of superconductors
create new opportunities, but recently impressive milestones have
been reached in superconducting analog and digital signal
processing which promise to lead to a new generation of sensing,
processing and computational systems. The 15 chapters are authored
by acknowledged leaders in the fundamental science and in the
applications of this increasingly active field, and many of the
authors provide a timely assessment of the potential for devices
and applications based upon ceramic-oxide superconductors or hybrid
structures incorporating these new superconductors with other
materials. The book takes the reader from a basic discussion of
applicable (BCS and Ginzburg-Landau) theories and tunneling
phenomena, through the structure and characteristics of Josephson
devices and circuits, to applications that utilize the world's most
sensitive magnetometer, most sensitive microwave detector, and
fastest arithmetic logic unit.
This book should be of value to all those who are considering the
use of or have only just begun to use the computer as a learning
aid, regardless of the educational level and the discipline being
considered. Although the focus is on computer-based instruction in
physics and mathematics at the university- and secondary-school
levels, the strategies and problems are universally applicable. At
the NATO Advanced Study Institute upon which this volume is based,
the obstacles encountered by those engaged in such activities were
similar in each of the eighteen countries represented. Despite many
false starts by those engaged in applying the computer as a
learning aid, we believe unequivocally that the computer presents a
unique educational tool yet to be exploited adequately. The reasons
for slow development may become obvious as one reads this book: the
effort required to achieve measurable success is not trivial.
Extensive planning and team efforts are often necessary.
Unfortunately, many well-intentioned educators discover this too
late. We emphasize very early that it is the opportunity to engage
students as active participants in the learning process which sets
computer-based learning apart from the learning potential of other
electronic media.
This text examines all aspects of constructing and using SQUID
magnetic sensors that operate at either liquid helium or liquid
nitrogen temperatures (4 or 77 K, respectively). There is
comprehensive coverage of a range of established and emerging
applications: biomagnetism, geophysics, nondestructive evaluation,
detection of unexploded ordnance, and gravity gradiometry. The
principles of both dc and rf SQUIDS are discussed extensively, as
are the geometries, electronic circuitry and analysis techniques
required to maximize performance. A major chapter of SQUID
gradiometers in real environments presents original information on
how to minimize noise from external sources. The discussions of
biomagnetism describe the growing importance of neuromagnetometry
with systems employing over 100 SQUID sensors, as well as the
emergence of magnetocardiography and foetal heartbeat monitoring.
Analysis techniques relevant to both biomagnetism and
nondestructive evaluation are presented in depth.
This book provides a current review of recent advances in all
aspects of superconducting electronics, both for the tradition (4
K) liquid helium based (LTS) materials and the more recent ceramic
(HTS) materials that can operate at higher temperatures in the
range of liquid nitrogen (77 K). Special emphasis has been placed
on the rapid progress over the past two years in the fabrication of
thin-film structures which provide the potential for vastly
improved passive elements in microwave circuitry and active
components for signal processing and magnetic sensors. The
fundamentals of superconducting and single-electron tunneling, as
well as a detailed explanation of SQUID fundamentals, are
presented. Current and projected applications of superconducting
electronic and magnetic-sensing elements are discussed. The book
concludes with four chapters devoted to new generations of
analog-to-digital converters and digital signal processors. This
information should prove valuable to scientists and engineers
engaged in R&D on improved electromagnetic sensing and signal
processing, the fabrication of thin-film components, and practical
applications of rapidly emerging LTS and HTS superconducting
technology.
|
You may like...
Loot
Nadine Gordimer
Paperback
(2)
R398
R330
Discovery Miles 3 300
|