American Magnetics 430, Инструкции по установке, эксплуатации и обслуживанию

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206 R
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A
MERICAN
M
AGNETICS
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NC
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PPENDIX
: A
BBREVIATIONS AND
A
CRONYMS USED IN THIS
M
ANUAL
ESD Electrostatic Discharge
FIFO First-in / First-out
FTP File Transfer Protocol
i, I Electrical current flow
Ic, I
c
Critical current, the maximum recommended current for at a given supercon-
ductor temperature
I
o
Power supply output current
IEC International Electrotechnical Commission
IEEE Institute of Electrical and Electronics Engineers
I/O Input/Output; The hardware and associated protocol that implement com-
munication between information processing systems and/or devices. Inputs
are the signals or data received by the system or device, and outputs are the
signals or data sent from it.
IP Internet Protocol; when used with “address”, refers to a numerical internet
address
IR The product I x R: the voltage developed by electrical current flow (I) through
a resistance (R)
kG kilogauss: a magnetic field unit of measurement
L Electrical circuit inductance measured in henries; superconducting magnets
act as nearly perfect inductors when at superconducting temperatures.
LED Light-Emitting Diode; a semiconductor device that emits light when energized
- used for visual status indication
<LF> Text line-feed (\n) character
LHe Liquid helium
LN2 Liquid nitrogen
Max Maximum
Min Minimum
ms, msec Milli-seconds
nom Nominal
P/S Persistent switch; a switch which, if perfectly realized, has zero resistance
when at superconducting temperatures. An integrated heater element allows
the switch to be heated for purposes of charging or discharging a supercon-
ducting magnet.
pk Peak
PSw Persistent switch
Abbreviations and Acronyms (Continued)
Term Meaning