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June 2004 Isis® Sonar User's Manual, Volume 1

276

Aspects of the Sensor Display information box are explained in Table 10-7.

Table 10-7. Meaning of Sensor Display information box

Event

If you set an event marker in your data imagery, Isis keeps

track of the marker. The event markers show up as

numbers in the Sensor Display.

Sensors

Mag X, Y, Z: the strength of an object’s magnetism,

measured in three dimensions. Field: the strength of

magnetic field. Gravity: the force of gravity. Aux 1 through

Aux 6: These report incoming data values from your

auxiliary sensors. The values are stated in whatever units

are appropriate for the named sensor you set up in your

Nav template. Refer to Appendix F for information on

setting up a Nav template.

Motion Reference

This is quantitative data expressing how close or far the

sensing body is with respect to its desired straight-line of

travel. Positive values indicate the sensing body is above

or to the right of the desired line of travel. Negative values

indicate the sensing body is below or to the left of the

desired line of travel.

Ship Position

This is conventional navigational data: latitude, longitude,

and gyroscopic heading (reported in degrees), and the

ship’s speed (reported in knots).

CTD Raw Data

These are the current values for the temperature, pressure,

conductivity, and turbidity of water occurring in your data

imagery.

CTD Computed

Data

CTD values derived and calculated from the CTD raw data.

In general, sensor data can include magnetic, gravity or bathymetry data or

other auxiliary parameters sent to Isis via its serial ports, a subject covered

Appendix D, ‘Serial Interfaces’, in the Isis User’s Manual, Volume 2.

10.7.5 Towfish Status

Towfish status is used with the SIS-1000 sonar to monitor voltage levels. A

typical example is shown in Figure 10-31.

Chapter 10: Using the Window Menu

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