National Instruments SCXI-1126, Руководство пользователя

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Glossary
SCXI-1126 User Manual G-4 © National Instruments Corporation
DIO digital input/output
F
F (1) Fahrenheit—a temperature measurement scale;
(2) farad—a measurement unit of capacitance
F
s
frequency source
frequency the number of alternating signals that occur per unit time
H
hysteresis the window below a certain trigger level a signal must pass before the
trigger occurs
Hz hertz—cycles per second of a periodic signal. The unit of measure for
frequency.
I
I/O input/output—the transfer of data to/from a computer system involving
communications channels, operator interface devices, and/or data
acquisition and control interfaces
II input current leakage
in. inch or inches
K
K kelvin
kbytes/s a unit for data transfer that means 1,000 or 10
3
bytes/s
kS 1,000 samples
M
M (1) Mega, the standard metric prefix for 1 million or 10
6
, when used with
units of measure such as volts and hertz; (2) mega, the prefix for 1,048,576,
or 2
20
, when used with B to quantify data or computer memory
MB megabytes