Published December 1990
| Version v1
Journal article
A pendulum feedback system to measure the lateral force on a magnet placed above a high-Tc superconductor
- 1. Department of Physics, University of Oslo, P.O. Box 1048, Blindern, Oslo (Norway)
Description
Based on a simple mechanical pendulum design, we developed a sensor for measurement of the horizontal force on a permanent magnet placed at any distance above a high-Tc superconductor. In this fully computerized system, which employs closed-loop feedback control, the lateral interaction with its restoring and hysteretic nature can be studied under conditions of constant vertical separation. Results are presented for the case of a small Nd-Fe-B magnet at a distance of 1 mm above a large planar disk of a YBa2Cu3Ox superconductor
Additional details
Publishing Information
- Journal Title
- Review of Scientific Instruments
- Journal Volume
- 61
- Journal Issue
- 12
- Series
- Rev. Sci. Instrum.
- Journal Page Range
- 3827-3829
- ISSN
- 0034-6748
- CODEN
- RSINA
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 22042267
- Subject category
- S36: MATERIALS SCIENCE;
- Descriptors DEI
- BARIUM OXIDES; BORON ALLOYS; COPPER OXIDES; HIGH-TC SUPERCONDUCTORS; IRON ALLOYS; LEVITATION; MEASURING METHODS; MEISSNER-OCHSENFELD EFFECT; NEODYMIUM ALLOYS; ON-LINE CONTROL SYSTEMS; PERMANENT MAGNETS; QUATERNARY COMPOUNDS; SPECIFICATIONS; USES; YTTRIUM OXIDES
- Descriptors DEC
- ALKALINE EARTH METAL COMPOUNDS; ALLOYS; AMINES; BARIUM COMPOUNDS; CHALCOGENIDES; CONTROL SYSTEMS; COPPER COMPOUNDS; EQUIPMENT; MAGNETS; ON-LINE SYSTEMS; ORGANIC COMPOUNDS; OXIDES; OXYGEN COMPOUNDS; RARE EARTH ALLOYS; SUPERCONDUCTORS; TRANSITION ELEMENT COMPOUNDS; YTTRIUM COMPOUNDS