NI PCI-6110/6111 User Manual

Glossary
© National Instruments Corporation G-13 NI PCI-6110/6111 User Manual
thermocouple a temperature sensor created by joining two dissimilar metals; the
junction produces a small voltage as a function of the temperature
TIO timing I/O
t
off
an offset (delayed) pulse; the offset is t nanoseconds from the falling
edge of the CONVERT* signal
t
out
output delay time
t
P
pulse period
TRIG trigger signal
trigger any event that causes or starts some form of data capture
t
sc
source clock period
t
sp
source pulse width
TTL transistor-transistor logic
t
w
pulse width
U
UI update interval counter
UISOURCE update interval counter clock signal
unipolar a signal range that is always positive (for example, 0 to +10 V)
UPDATE update signal
V
Vvolts
VDC volts direct current
VI virtual instrument—(1) a combination of hardware and/or software
elements, typically used with a PC, that has the functionality of a classic
stand-alone instrument (2) a LabVIEW software module (VI), which
consists of a front panel user interface and a block diagram program