T E C H N O L O G Y
P U L S E B U R S T R A D A R
PULSAR R96 is a top-mounted, downward-looking pulse
burst radar operating at 6 GHz. Unlike true pulse devices
(e.g. ECLIPSE Guided Wave Radar) which transmit a single,
sharp (fast rise-time) waveform of wide-band energy
(Figure 1), PULSAR emits short bursts of 6 GHz energy
(Figure 2) and measures the transit time of the signal
reflected off the liquid surface.
Distance is calculated utilizing the equation Distance equals
the Speed of light multiplied by the transit time divided by
two (Distance = C × Transit Time/2), then developing the
level value by factoring in tank height and other configura-
tion information (Figure 3). The exact reference point for
distance and level calculations is the sensor reference point
(bottom of an NPT thread, top of a BSP thread, or face of
a flange).
The exact level measurement is extracted from false target
reflections and other background noise via the use of
sophisticated signal processing. The new PULSAR Model R96
circuitry is extremely energy efficient so no duty cycling is
necessary to accomplish effective measurement.
Figure 1
Figure 2
Pulse
Pulse Burst
Distance = c × (time ÷ 2)
Figure 3
2
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