| Abstract | This report documents the present practices involved in completing a wake survey at the National Research Council Canada (Institute for Ocean Technology). To begin the report, background information is provided in defining a wake survey. The introduction also provides a very brief synopsis of the history behind wake survey procedures, comparing past and present equipment used in implementation. Following this, preparation methods used on the wake probe during this work term; both pitot tube bleeding and water depth testing are addressed. Within water depth testing is explanation of the three different tests: Flow samples, step samples, and drift samples. Then there is a brief discussion on the testing and data analysis stages of wake surveying. Unfortunately though, these stages were never reached during this work term. This was due to various behavioural problems with particular pressure transducers which showed tendencies of unresponsiveness after lengthy submersion in water. However, this was not the only obstacle causing difficulty during this semester. Instruments used in transmitting pressure signals have also acted inadequately. To learn more about the performance of all equipment used in the wake survey process, various troubleshooting methods have been used and are documented. These include testing for relationships between wire impedance, voltage, and applied hydrostatic pressure in each transducer. The results and conclusions of these tests close the discussion. To complete the report, three recommendations are made which may assist in guiding any future work completed on improving wake survey equipment. |
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