पाण्याची किंवा बुडलेल्या वस्तूंची खोली निश्चित करण्यासाठी अल्ट्रासाऊंड वेव्ह डिटेक्टर,

fathometer's Usage Examples:

* 12:37:30 The fathometer watch alerts the navigation team to the fact that the depth under the hull is now just ,* 12:37:45 Again the fathometer watch warns that the water level is down to just .

equipment for a Global Positioning System receiver and chart display, fathometer, a compass, a marine chronometer, two-way radios, and radiotelephone,.

The fathometer is an echo sounding system for measurement of water depth.

decompression tables and the unit of calibration for pneumofathometers and hyperbaric chamber pressure gauges.

used for determining water depth is sometimes called a fathometer.

He invented the first practical fathometer, a water depth measuring instrument for ships.

The first practical fathometer was invented by Herbert Grove Dorsey and patented in 1928.

Decca Bridgemaster 2000 Navigation: Decca 2090 ARPA Sonar: Commercial fathometer Armament: 1 × 40mm Bofors cannon 2 × 20mm Oerlikon AA cannons 2 × 2 14.

* 12:37 The sailor watching the fathometer warns the navigation team that the water depth under the hull is decreasing, and was now just .

Single-beam echosounders and fathometers began to enter service in the 1930s which used sonar to measure the depth.

directionality was not a concern, and Fessenden designed a commercial fathometer using a carbon microphone as receiver, for the Submarine Signal Company.

under USCG regulations, and Edmund Fitzgerald lacked one, even though fathometers were available at the time of her sinking.

The first practical fathometer (literally "fathom measurer"), which determined water depth by measuring.