The LBL magnetic measurements data acquisition system

Conference · Mon Aug 01 00:00:00 EDT 1983 · IEEE Trans. Nucl. Sci.; (United States)

OSTI ID:5235958

Green, M I; Nelson, D H

The LBL Magnetic Measurements Engineering (MME) Group has developed a Real-Time Data Acquisition System (DAS) for magnetic measurements. The design objective was for a system that was versatile, ''portable,'' modular, expandable, quickly and easily reconfigurable both in hardware and software, and inexpensive. All objectives except the last were attained. An LSI 11/23 microcomputer is interfaced to a clock-calendar, printer, CRT control terminal, plotter with hard copy, floppy and hard disks, GPIB, and CAMAC buses. Off-the-shelf hardware and software have been used where possible. Operational capabilities include: measurement of high permeability materials, harmonic error analysis of superconducting dipoles and rare earth cobalt (REC) and conventional quadrupole magnets, and 0.1% accuracy x-y mapping with Hall probes. Results are typically presented in both tabular and graphical form during measurements. Only minutes are required to switch from one measurement capability to another. Brief descriptions of the DAS capabilities, some of the special instrumentation developed to implement these capabilities, and planned developments are given.

• Research Organization: Magnetic Measurements Engineering Group, Lawrence Berkeley Laboratory, University of California, Berkeley, California 94720
• OSTI ID: 5235958
• Report Number(s): CONF-830311-; TRN: 84-005710
• Journal Information: IEEE Trans. Nucl. Sci.; (United States), Vol. NS-30:4; Conference: Particle accelerator conference, Santa Fe, NM, USA, 21 Mar 1983
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
DATA ACQUISITION SYSTEMS
DESIGN
LAWRENCE BERKELEY LABORATORY
CALENDARS
CATHODE RAY TUBES
DIPOLES
EQUIPMENT INTERFACES
MAGNETIC PROPERTIES
MAGNETS
MICROPROCESSORS
QUADRUPOLES
REAL TIME SYSTEMS
TIME INTERVAL ANALYZERS
COMPUTERS
ELECTRON TUBES
ELECTRONIC CIRCUITS
MEASURING INSTRUMENTS
MICROELECTRONIC CIRCUITS
MULTIPOLES
NATIONAL ORGANIZATIONS
PHYSICAL PROPERTIES
US AEC
US DOE
US ERDA
US ORGANIZATIONS
430303* - Particle Accelerators- Experimental Facilities & Equipment