Cryogenic instrumentation of an SSC (superconducting super collider) magnet test stand

Conference · Tue Sep 01 00:00:00 EDT 1987

OSTI ID:5759634

McGuire, K; Strait, J; Kuchnir, M; McInturff, A

This paper describes the system used to acquire cryogenic data for the testing of SSC magnets at the Fermilab Magnet Test Facility. An array of pressure transducers, resistance thermometers, vapor pressure thermometers, and signal conditioning circuits are used. Readings with time resolution appropriate for quench recording are obtained with a waveform digitizer and steady-state measurements are obtained with higher accuracy using a digital voltmeter. The waveform digitizer is clocked at a 400 Hz sampling rate and these readings are stored in local ring buffers. The system is modular and can be expanded to add more channels. The software for the acquisition, control, logging, and display of cryogenic data consist of two programs which run as separate tasks. These programs (as well as a third program which acquires quench and magnetic data) communicate and pass data using shared global resources. The acquired data are available for analysis via a nationwide DECnet network.

• Research Organization: Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
• DOE Contract Number: AC02-76CH03000
• OSTI ID: 5759634
• Report Number(s): FNAL-TM-1476; CONF-8706125-16; ON: DE88002659
• Resource Relation: Conference: Cryogenic engineering conference, St. Charles, IL, USA, 14 Jun 1987; Other Information: Paper copy only, copy does not permit microfiche production. Original copy available until stock is exhausted
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
POWER SUPPLIES
DESIGN
PRESSURE GAGES
SUPERCONDUCTING MAGNETS
CRYOGENICS
TESTING
TEST FACILITIES
THERMOMETERS
DATA ACQUISITION
DATA ANALYSIS
ELECTRIC CONDUCTIVITY
PRESSURE MEASUREMENT
SIGNAL CONDITIONING
TRANSDUCERS
VAPOR PRESSURE
ELECTRICAL EQUIPMENT
ELECTRICAL PROPERTIES
ELECTROMAGNETS
ELECTRONIC EQUIPMENT
EQUIPMENT
MAGNETS
MEASURING INSTRUMENTS
PHYSICAL PROPERTIES
SUPERCONDUCTING DEVICES
THERMODYNAMIC PROPERTIES
420201* - Engineering- Cryogenic Equipment & Devices