| 释义 |
SQUID, n.2 Physics.|skwɪd|
Also Squid, squid.
[Acronym f. the initials of superconducting quantum interference device.]
A device consisting essentially of a superconducting ring containing one or more Josephson junctions, made the basis of a very sensitive magnetometer by utilizing the fact that a change in the magnetic flux linkage of the ring by one flux quantum produces a sharp change in the ring's impedance.
1967W. S. Goree in Proc. Symp. Physics of Superconducting Devices (U.S. Naval Research Lab.) 9 One embodiment of this device is the SQUID originated by Mercerau and others, which is two Josephson junctions in a superconducting ring. 1972Cryogenics XII. 28/1 SQUID magnetometers and related devices have been used to make quantitative measurements of thermal fluctuations at temperatures as low as 0·023 K. 1979Nature 22 Feb. 643/1 The magnetisation was measured with a Squid magnetometer. 1979McGraw-Hill Yearbk. Sci. & Technol. 379/2 The dc SQUID has recently been developed for fast switching applications, that is, as an electronic logic or memory element. 1982Economist 3 Apr. 120/3 At the frontiers of R and D now being done into superfast computers..is a device that is known as a squid—which is short for superconducting quantum interference device. |