Glossary
G-6
ni.com
L
line resistance
The small, but nonzero, resistance of a lead wire that varies with the lead
length and ambient temperature; can cause measurement error if the lead
wire carries excitation current.
lowpass filter
A filter that passes signals below a cutoff frequency while blocking signals
above that frequency.
M
m
Meters.
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.
max
Maximum.
maximum working
voltage
The highest voltage with respect to ground that can be applied to an input
terminal without damaging the device. Includes both the signal and
common-mode voltages.
microstrain
The unit of strain measurement usually denoted by
µε
; one
µε
represents a
deformation of 10
–6
, or 0.0001%.
min
(1) Minutes.
(2) Minimum.
MISO
Master-in-slave-out signal.
MOSI
Master-out-slave-in signal.
multiplex
To route one of many input signals to a single output.
multiplexed mode
An SCXI operating mode in which analog input channels are multiplexed
into one module output so that the cabled E/M Series DAQ device has
access to the module’s multiplexed output as well as the outputs of all other
multiplexed modules in the chassis.