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Hydrographic Surveying - Depth Sounding Equipment

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Hydrographic Surveying - Depth Sounding Equipment

  1. 1. HYDROGRAPHIC SURVEYING LECTURE 4: DEPTH SOUNDING EQUIPMENT BY: AHMED YASSER AHMED MOHAMED NASSAR SECTION: 1 ID:20
  2. 2. HOW DEPTH SOUNDING WORKS • Transducer ayassern@hotmail.com 2
  3. 3. HOW DEPTH SOUNDING WORKS • Transducer transmits (sonic pulses) Sounds ayassern@hotmail 3
  4. 4. HOW DEPTH SOUNDING WORKS • When sonic pulses detect a ground, it reflects to the vessel receiver , them with known pulse speed and time needed to reflect, we calculate the distance. ayassern@hotmail 4
  5. 5. COMPONENTS OF DEPTH SOUNDING EQUIPMENT ayassern@hotmail 5 FREQUENCY BEAM DIVERGENCE (CONE ANGLE) DEPTH
  6. 6. FREQUENCY , DEPTH AND DIVERGENCE ayassern@hotmail 6
  7. 7. FREQUENCY , DEPTH AND DIVERGENCE ayassern@hotmail 7
  8. 8. ELEMENTS EFFECT DEPTH CAPABILITY 1. Transmitter power. 2. Receiver, sensitivity. 3. Frequency. 4. Transducer. 5. Transducer installation. 6. Water conditions and types. 7. Bottom conditions . 8. Factors affecting wave propagation include: temperature, salinity , pressure and density. ayassern@hotmail 8
  9. 9. THANKS ayassern@hotmail 9

Editor's Notes

  • Measuring the depth of water aboard a frigate, illustration of 1844
    صورة توضح قياس الأعماق , 1844

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