Context
When you move the cursor over the matrix presentation of the MS70 transceiver channels, each element in the transducer can be clearly identified as a rectangle. If you place the cursor on top of one of these rectangles, a small yellow tool-tip will identify key information.
The following requirements must be met:
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The information presented by the Matrix page verifies that the MS70 is fully operational. |
NoteThis test must be considered as indicative. With the vessel in port, the environmental conditions are not satisfactory. In the shallow waters of the port, noise from other vessels, dockyard workers or machinery will cause unreliable test results. The test is therefore repeated during the Sea Acceptance Test.
A rectangle with 32 black elements in the matrix view indicates a failure with a single transceiver board. The tool-tip will indicate which board that fails. Restarting the system will normally fix the problem. Failure of eight or nine consecutive transceiver boards indicate a problem with the power supply.
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Weak signals indicate problems with the +6 VDC supply voltage for the analogue amplifiers. |
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No response indicate a problem with the +12 VDC supply voltage used for the digital circuitry. |
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A failure in the +75 VDC supply voltage can only be detected in the transmit test. |
Result
This test shows the weighting used during transmission of a normal beam. In order to test all transmitters with equal level,
select beam mode Example 1 Beam Uniform Weighting, and run the transmitter test one more time.
These samples are all inside the transmit pulse and the weighting of the elements during transmission will be visible.
If a single element, or a group of elements (transceiver boards), reports signal levels with abnormal deviation from it's
neighboring elements, you may have a failure. If the receiver test of the relevant elements performs well, you probably have
malfunctioning transmitter electronics.
NoteThe combination of Uniform weighting and automatic scaling makes the BITE view use the full colour scale on a relative small
difference between elements. This will not “look good” even for a fully functional transducer. You must look in the numerical
data for large difference between neighboring elements, and notice any differences between the strongest and weakest element.
Test procedure |
Results |
Testing the transmitter channels with the BITE Matrix page |
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Date and signature:
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