eDAQ PowerChrom 280, Руководство пользователя

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Appendix A — Glossary 21
PowerChrom unit . The PowerChrom unit is a
self-contained data acquisition hardware unit
that connects to a Windows or Macintosh
computer.
range . In PowerChrom, the range is the
maximum positive and negative voltage that
can be displayed, from ±2 mV to ±10 V, in
twelve steps. (Range is inversely proportional
to gain, the amount of amplification.)
terminator . A device used in a SCSI chain to
maintain signal integrity. Some devices, such
as internal hard disks, have them built in.
TTL (transistor-transistor logic). A family of
integrated circuits with bipolar circuit logic:
TTLs are used in computers and related
devices. TTL is also a standard for
interconnecting such circuits, which defines the
voltages used to represent logical zeroes and
ones (binary 0 and 1).
USB (Universal Serial Bus). A serial
communication standard used for connecting
peripheral devices to computers supporting the
standard.
waveform . The shape of a wave (a graph of a
wave’s amplitude over time).