Siemens SITRANS LR260 Operating Instructions Manual page 180

Glossary
inductance
the property of an electric circuit by virtue of which a varying current induces an electromotive
force in that circuit or in a neighboring circuit. The unit is a Henry.
microwaves
the term for the electromagnetic frequencies occupying the portion of the radio frequency
spectrum from 1 GHz to 300 GHz.
multiple echoes
secondary echoes that appear as double, triple, or quadruple echoes in the distance from the
target echo.
Near Blanking
see Blanking
nozzle
a length of pipe mounted onto a vessel that supports the flange.
parameters
in programming, variables that are given constant values for specific purposes or processes.
polarization
the property of a radiated electromagnetic wave describing the time-varying direction and
amplitude of the electric field vector.
polarization error
the error arising from the transmission or reception of an electromagnetic wave having a
polarization other than that intended for the system.
propagation factor (pf):
where the maximum velocity is 1.0, pf is a value that represents a reduction in propagation
velocity as a result of the wave travelling through a pipe or medium.
pulse radar
a radar type that directly measures distance using short microwave pulses. Distance is
determined by the return transit time.
180
SITRANS LR260 with mA/HART
Operating Instructions, 11/2019, A5E32337683-AD