Sensors & Software Inc. NG250 ユーザーズマニュアル
Noggin
12-Survey & Map Mode
77
In Trigger Button mode, the system “beeps” as each trace is collected. The length of the beep
will depend on the number of stacks (the more stacks, the longer it takes to collect a trace and
therefore the longer the beep).
will depend on the number of stacks (the more stacks, the longer it takes to collect a trace and
therefore the longer the beep).
When the Smart System is used in Trigger Button Mode, it is up to the user to keep track of
positioning by some other method, for example, using a measuring tape, fiducial markers (see
Fiducial Markers on page 72) or GPS (see Section 12.3.5: P.103).
positioning by some other method, for example, using a measuring tape, fiducial markers (see
Fiducial Markers on page 72) or GPS (see Section 12.3.5: P.103).
Since data collection only occurs by the user pressing the trigger button, usually a fewer number
of traces are collected in this mode compared to odometer triggering mode or Free Run mode
(see above). Therefore, it is often useful to increase the trace width to 4 or 8 pixels so that the
data are more easily seen on the DVL screen (see Plot Interval on page 96).
of traces are collected in this mode compared to odometer triggering mode or Free Run mode
(see above). Therefore, it is often useful to increase the trace width to 4 or 8 pixels so that the
data are more easily seen on the DVL screen (see Plot Interval on page 96).
12.2.10 Noggin Data Screens
Total Distance Per Screen
The total distance that can be displayed on one screen varies depending on the Noggin system,
Station Interval and Plot Interval (see Section 12.3.3.4: p.96). As the Station Interval increases,
the distance between data traces increases and the total distance per screen increases. As the
Plot Interval increases, the total distance per screen decreases.
Station Interval and Plot Interval (see Section 12.3.3.4: p.96). As the Station Interval increases,
the distance between data traces increases and the total distance per screen increases. As the
Plot Interval increases, the total distance per screen decreases.
Noggin 100
For the Noggin 100, each trace is normally 2 pixels wide. Since the screen is 640 pixels wide,
each screen has 320 traces. When the station interval is set to Normal (10 centimetres or 4
inches), each screen displays 32 metres or 105 feet of data.??
each screen has 320 traces. When the station interval is set to Normal (10 centimetres or 4
inches), each screen displays 32 metres or 105 feet of data.??
Noggin 250
For the Noggin 250, each trace is normally 2 pixels wide. Since the screen is 640 pixels wide,
each screen has 320 traces. When the station interval is set to Normal (5 centimetres or 1.92
inches), each screen displays 16.0 metres or 52.5 feet of data.
each screen has 320 traces. When the station interval is set to Normal (5 centimetres or 1.92
inches), each screen displays 16.0 metres or 52.5 feet of data.
Noggin 500
For the Noggin 500, each trace is normally 1 pixel wide. Since the screen is 640 pixels wide,
each screen has 640 traces. When the station interval is set to Normal (2.5 centimetres or 0.96
inches), each screen displays 16.0 metres or 52.5 feet of data.
each screen has 640 traces. When the station interval is set to Normal (2.5 centimetres or 0.96
inches), each screen displays 16.0 metres or 52.5 feet of data.
Noggin 1000
For the Noggin 1000, each trace is normally 1 pixel wide. Since the screen is 640 pixels wide,
each screen has 640 traces. When the station interval is set to Normal (1.0 centimetres or 0.48
inches), each screen displays 6.4 metres or 25.7 feet of data.
each screen has 640 traces. When the station interval is set to Normal (1.0 centimetres or 0.48
inches), each screen displays 6.4 metres or 25.7 feet of data.
Total Data Distance on the DVL
For more details on total distances and Station Intervals see Section 12.3.3.3: p.93.