| Determining the Appropriate Font Size, and Use of Colour and Contrast for Underwater Displays |
01-Apr-2008 |
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| Authors:
J B Morrison; J K Zander; SHEARWATER HUMAN ENGINEERING NORTH VANCOUVER (BRITISH COLUMBIA)
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 | Canadian mine countermeasures (MCM) divers currently use a combination of different displays to provide them with information about their safety, equipment, and status. MCM divers require a single, integrated display to simplify information gathering, and to provide information from the dive supervisor. Ergonomic design guidelines were reviewed and modified for information display in the underwater environment. A two-phase experiment was conducted to determine the optimal font size and the optimal ... |
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| Factors Influencing Manual Performance in Cold Water Diving |
01-Apr-2008 |
39 pages |
| Authors:
J B Morrison; J K Zander; SHEARWATER HUMAN ENGINEERING NORTH VANCOUVER (BRITISH COLUMBIA)
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 | With the introduction of new communications and display technologies, the ability of divers to operate complex controls becomes an important factor in systems design. This study evaluates the effects of pressure, gloves, and cold on three components of manual performance: grip strength, tactile sensitivity and manual dexterity. Performance was evaluated at 0.4 and 40 msw: with and without gloves in 25 deg C water, and with gloves in 4 deg ... |
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| Evaluation of Head Mounted and Head Down Information Displays During Simulated Mine-Countermeasures Dives to 42 msw |
01-Apr-2008 |
57 pages |
| Authors:
J B Morrison; J K Zander; SHEARWATER HUMAN ENGINEERING NORTH VANCOUVER (BRITISH COLUMBIA)
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| Despite recent advancements in diver communications, there is little information on the ability of divers to use a multi-function head down display (HDD) or head mounted display (HMD) for routine underwater tasks. Three information displays (HDD, and a monocular and binocular HMD) were tested by nine mine counter-measures (MCM) divers at the surface and during simulated dives to 42 metres in 6 deg C water. Divers used the displays to ... |
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| The Effect of Pressure and Time on Information Recall |
01-Apr-2008 |
28 pages |
| Authors:
J B Morrison; J K Zander; SHEARWATER HUMAN ENGINEERING NORTH VANCOUVER (BRITISH COLUMBIA)
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| Mine countermeasures divers are required to investigate mines located on the seabed. The diver is required to first locate, then to memorize details about the mine for later reporting to the dive supervisor. This study evaluated the effects of diving to 40 msw and elapsed time on the processing and recall of information. Ten divers viewed detailed images of mine-like objects on six occasions in air and in dives to ... |
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