User's Manual

Smart Systems User’s Manual Version 1.1

Figure 6-2: Effects of the Gain setting

Note that the gain setting is only for data display. The data are always saved

without any gain applied. It is not possible to collect Noggin

plus

data with an

“incorrect” gain setting.

If the user finds that they are always using very high or very low gain settings to see the

data adequately, the user may want to adjust the Linear Gain setting under Setup (see

Section 6.3.1).

6.2.7 Collecting Data using the Odometer

As a Smart System moves, the odometer triggers the system to collect a data trace at

fixed distance intervals. This distance is called the “Station Interval”. For the Noggin

250, the normal station interval is 5 centimetres (about 2 inches). For the Noggin 500,

the normal station spacing is 2.5 centimetres (about 1 inch). For the Noggin 1000, the

normal station spacing is 1.0 centimetres (about 0.48 inch). The Station Interval can be

changed to a longer or short distance (see Section 6.3.3).

Each data trace is plotted as a vertical strip on the screen (see Figure 6-1).

For the Noggin 250, each trace is 2 pixels wide. Since the screen is 640 pixels wide,

each screen has 320 traces. When the station interval is set to Normal, each screen

displays 16.0 metres (51.2 feet) of data for the Noggin 250.

For the Noggin 500, each trace is 1 pixel wide. Since the screen is 640 pixels wide,

each screen has 640 traces. When the station interval is set to Normal, each screen

displays 16.0 metres (51.2 feet) of data for the Noggin 500.

For the Noggin 1000, each trace is 1 pixel wide. Since the screen is 640 pixels wide,

each screen has 640 traces. When the station interval is set to Normal, each screen