IEPE-Link
™
-LXRS
®
Wireless Sensor Node
User Manual
References
66
Sampling Mode:
the type of sampling that is being utilized, such as event- triggered,
continuous, or periodic. The nodes have several sampling modes that employ these types of
sampling.
Sampling Rate:
the frequency of sampling
Single Ended:
electrical signals that are measured with reference to a system ground
Slope:
When describing a mathematically linear relationship, the slope is the steepness of the
line that represents that relationship on a graph. The equation of a straight line is:
y = mx+b
,
where
x
is the x-axis coordinate,
y
is the y-axis coordinate,
m
is the slope, and
b
is the offset.
Streaming:
Streaming is a sampling mode in which all active channels (and the sensors
attached to them) are measured, and the data acquired is transmitted to the gateway and
software. The data is not written to non- volatile memory during streaming. Streaming can
either be finite (have a user defined start and end time) or continuous (continue until the power
is cycled on the node).
Synchronized Sampling:
a sampling mode that automatically coordinates all incoming node
data to a particular gateway. This mode is designed to ensure data arrival and sequence.
Transmission rate:
the number of data packets per transmission window in seconds.
Depending on the sampling mode and settings it will be between 1 and 64 packets/second.
Transmission window:
the time allowed for one data transmission at the automatically
determined transmission rate
USB:
Universal Serial Bus, a serial data communications protocol
Wheatstone Bridge:
an electrical circuit used to measure unknown electrical resistances
WSN:
Wireless Sensor Network describes a distribution of sensors and data acquisition
equipment that autonomously monitors environmental characteristics, such as temperature,
pressure and strain.
