Question 1: What kind of air tank do we need?

#Question-1:-What-kind-of-air-tank-do-we-need?

Variables:

#Variables:
  • DEPTH_OF_TRAPS: the depth of traps (in m)
  • MASS_OF_TRAPS: the total weight of all traps being buoyed (in kg)
  • TANK_PRESSURE: the max pressure for a standard scuba tank (Pa)
  • MAX_BOUY_VOLUME: the maximum volume to which the bouy can be inflated (in m^3)

Constants:

#Constants:
  • DENSITY_OF_WATER: the density of water (in kg/m^3)
  • GRAVITY: acceleration due to gravity (in m/s^2)

Step 1: What's the water pressure at that depth?

#Step-1:-What's-the-water-pressure-at-that-depth?
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Step 2: What's the minimum size required for our bouy to make the traps bouyant?

#Step-2:-What's-the-minimum-size-required-for-our-bouy-to-make-the-traps-bouyant?
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Step 3: How much tank volume do we need to inflate the bouy at depth?

#Step-3:-How-much-tank-volume-do-we-need-to-inflate-the-bouy-at-depth?
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Step 4: Assuming no water resistance and pretending that all of the traps' mass must be lifed by the bouy immediately upon inflation, how long would it take the bouy to get to the surface?

#Step-4:-Assuming-no-water-resistance-and-pretending-that-all-of-the-traps'-mass-must-be-lifed-by-the-bouy-immediately-upon-inflation,-how-long-would-it-take-the-bouy-to-get-to-the-surface?
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Question 2: How strong does our signal need to be, in watts, to transmit a given distance?

#Question-2:-How-strong-does-our-signal-need-to-be,-in-watts,-to-transmit-a-given-distance?

Variables:

#Variables:
  • TRANSMIT_DISTANCE = the distance that we want to transmit (in meters)
  • DESIRED_SNR_DB = the desired signal to noise ratio at the receiver (in dB)
  • OCEAN_NOISE_DB = the level of ocean noise (in dB)
  • OCEAN_ATTENUATION = the level of sound attenuation in seawater (in dB/m)

Constants:

#Constants:
  • SPEED_OF_SOUND_IN_WATER = speed of sound in water (in m/s)
  • DB_REFERENCE_PRESSURE = the reference sound pressure for a dB calculation (in Pa)

Step 1: Calculate the necessary sound pressure at the receiver (in Pascals)

#Step-1:-Calculate-the-necessary-sound-pressure-at-the-receiver-(in-Pascals)
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Step 2: Calculate the transmit power based on the necessary sound pressure

#Step-2:-Calculate-the-transmit-power-based-on-the-necessary-sound-pressure
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