| 摘要: |
| 在作业现场使用回声测深仪测量海水深度的实践中, 总结出了用于回声测深仪的器差订正方法中比测杆法、比测水陀法、温盐订证法的优缺点和使用范围, 指出比测杆法只适用于在海水5m以浅区域测水深中作比测, 比测水陀法不能保证比测的准确性。进而, 重点介绍了根据实践经验制作出的比测器的比测过程、步骤和方法, 该法通过调整回声测深仪的声速, 使之达到准确测量出测区的水深,是一种既能达到准确测量出测区水深又能减少工作量的方法。比测器法对于作业现场回声测深仪的器差订正具有实践指导意义。 |
| 关键词: 回声测深仪器差订正 比测器法 比测杆法 比测水陀法 温盐订正法 |
| DOI： |
| 分类号: |
| 基金项目:国家海洋局“908”专项(908-ZC-II-01) |
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| Comparison of the error correction methods of echo sounder |
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| Abstract: |
| Based on the on-site practice of measuring water depth with echo sounder, the relative merits and range of application of rod comparative measurement, water lump comparative measurement, and thermohaline correction in the error corrections of echo sounder were summarized. Rod comparative measurement is suitable for the depth of is less than 5 meters, and the accuracy is not reliable with water lump comparative measurement. The process and procedure of comparative measurement based on practical experience were discussed. This method measures the water depth by adjusting the sound velocity of echo sounder and reduces workload. Detector comparative measurement has practical significance in the error corrections of echo sounder for on-site use. |
| Key words: echo sounder error correction detector comparative measurement rod comparative measurement water lump comparative measurement thermohaline correction |
