摘要:

A displacement sensor with a hollow metal optical waveguide and a flat mirror is investigated. The sensor utilizes the principle of different attenuation for low and higher order light modes propagated in a hollow metal waveguide. The sensor has high sensitivity for small displacements, a broad measurement range, a one-side optoelectronic device location, and simple and inexpensive design. ©1997 American Institute of Physics.

ISSN:0034-6748    

DOI:10.1063/1.1147964

出版商:AIP    

年代:1997

数据来源: AIP

摘要:

A simple method is described for forming superconducting contacts to niobium thin films, as used for current perpendicular to the plane measurements of the resistance of magnetic multilayers, using an indium–Roses alloy (Bi 50/Pb 28/Sn 22) solder alloy. This solder alloy has a critical magnetic field of approximately 1.2 T. ©1997 American Institute of Physics.

ISSN:0034-6748    

DOI:10.1063/1.1147965

出版商:AIP    

年代:1997

数据来源: AIP

摘要:

A 1.5 m augmented railgun using a permanent magnet (ARGPM) has been assembled and tested. The goal of this work is to demonstrate fusion pellet injection with an extremely high velocity, in excess of 5 km/s. In this work, a wood fiber projectile is accelerated up to a velocity of 3.3 km/s in a plasma armature railgun without preaccelerators. Also, the velocity possible for a very light projectile accelerated by the ARGPM is discussed. ©1997 American Institute of Physics.

ISSN:0034-6748    

DOI:10.1063/1.1147625

出版商:AIP    

年代:1997

数据来源: AIP