Noggin
13-Survey & Map Mode
87
13.2.9 Collecting Data using a Button
For situations when an odometer wheel is impractical and the user wants to collect data at
discrete locations, ensure that the Trigger Method is set to “Button” (
13.3.2.2: p.98
). This means
the Noggin system only collect data when the the DVL B button or the Trigger button (if an
external Beeper-Trigger is connected to the system) is pressed.
When collecting data in this mode, increase the number of stacks (
13.3.1.5: p.96
). Generally, the
more stacks the better the data quality.
In Button mode, if an external Beeper-Trigger is connected to the system, it “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).
When the Smart System is used in 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 (
13.2.4.2: p.80
) or
GPS (
13.3.5: p.112
).
Since data collection only occurs by the user pressing the button, usually a fewer number of
traces are collected in this mode compared to Odometer 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 (
13.3.3.4: p.106
).
Electrical Beeper-Trigger
Summary of Contents for Noggin 100
Page 1: ...User s Guide Copyright 2012 Sensors Software Inc 2011 00022 02 Noggin ...
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Page 17: ...Noggin 2 Noggin Components 3 Figure 2 3 Noggin 100 components ...
Page 156: ...Appendix D Instrument Interference Noggin D 2 ...
Page 158: ...Appendix E Safety Around Explosive Devices Noggin E 2 ...
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