Standard practice for calibrating a fathometer using a bar check method 用棒检验方法校准回声测深仪的标准实施规范
2.
Bottom - charting fathometer 海底地貌测绘仪
3.
Oem receivers for navigation and survey , high precision fathometer and assoc - iated gps glonass gsm vhf bdstar integrated antenna , under the instruction of our corporate culture - " honesty , strive ; first - class " 型gps oem板高精度测深仪及相关的gps glonass gsm vhf北斗等组合天线。
4.
According to the gps receiver and the fathometer capability and requirement , the correlation index of data interface is : the sounding data is gathered 2 times per second , and gps data is gathered 1 time per second 按gps接收机、测深仪的性能和要求，数据接口的相关指标设置为：水深数据每秒采集2次， gps数据每秒采集1次。
5.
The underwater topographic survey in lake dianchi employed the dual - frequency gps with rtk technology , which type is american trimble 4700 , for horizontal positioning f and the type of the fathometer is wuxi haiying sdh - 13d ; the navigation software : the south 5 . 0 对滇池水下地形测量外业数据的采集，平面定位采用美国trimble4700双频gps接收机；水深测量采用的测深仪为无锡海鹰sdh ? 13d ；导航软件为南方公司的导航5 . 0版。
6.
The water - depth computer monitoring system collects data from gps , multi - frequency fathometer ( 16 frequencies ) and plc network . based on the analysis of these data , a three - dimensional underwater ground profile is presented for the scheduled area of geotextiles - laying , the development tool of the three - dimensional underwater ground profile is opengl . this thesis is organized into five chapters 水深计算机监控系统采集来自gps 、多通道测深仪( 16通道)以及plc网络的数据，将这些数据进行处理后，显示待铺设软体排的小区域内的三维水下地形，三维地形的开发采用目前国际上流行的三维图形接口opengl 。
