| 摘要 |
PURPOSE:To enhance safety and certainty of the decompression control by selecting decompression control data from the detected maximum depth of water and the stay time from the diving start to the surfacing start. CONSTITUTION:When diving is started, a stay time measuring means 3 starts measuring the stay time. At the same time, a water depth measuring means 1 starts measuring the depth of water. An output value of the means 1 is input to a maximum water depth measuring means 2, so that the maximum water depth is always detected. When surfacing is started, measurement of the stay time by the means 3 is stopped, thereby determining the stay time. Moreover, the maximum water depth before the start of surfacing is determined by the means 2. Then, a depression control data selecting means 5 selects and determines the depression control data from a decompression control data memory means 4 based on the stay time and maximum water depth. The selected decompression control data is displayed for the decompression control. Accordingly, decompression control of high safety and certainty can be achieved. |
