February 12, 2024
Q90R R-GAGE® Radar Sensor Instruction Manual
© Banner Engineering Corp. All rights reserved.
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0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
D
is
ta
n
c
e (m)
Time (s)
A
B
C
1 sec
D
Raw Measurement
Output Measurement
Maximum Distance Decrease
Maximum Distance Increase
1 sec
<1 sec
0
1
2
3
4
5
6
7
8
9
10
A.
The Max Distance Change threshold (red lines) adapts based on the previous Raw Measurement sample (blue
lines) as long as that sample was within the previous thresholds.
B.
The temporary distance spike in the Raw Measurement (blue lines) is filtered out because the distance increase
was outside of the Max Distance Change (red lines). The Output Measurement (green lines) will hold its last
measurement.
C.
The Raw Measurement change (blue lines) is greater than the Max Distance Change (red lines) so the Output
Measurement (green lines) holds its previous value while the Raw Measurement is beyond the Max Distance
Change. After the 1 second Hold Time expires, the Output Measurement and Max Distance Change thresholds
are updated based on the next Raw Measurement value.
D.
The Raw Measurement (blue lines) drops down to a value below the Max Distance Change (red lines) so the
Output Measurement (green lines) holds its value for the Hold Time. After the 1 second Hold Time expires, the
Output Measurement and Max Distance Change thresholds are updated based on the next Raw Measurement
value.
Using Measurement Hold Example
4.6
Measurement Hold (The hold time is set to 1 second)
Figure 10.
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