a Fathometer measures the sea depth
fathometer is an instrument used to measure the altitude of na object above a fixed level , fathometer measures the sea depth
A fathometer measures the depth of water by sending sound waves to the seafloor and calculating the time it takes for the waves to return. This information is then displayed on a screen in terms of depth measurements.
Ocean depth
Fessenden's InventionsHe invented the radio and Fathometer
A fathometer measures the depth of water by using sound waves to calculate the distance between the sensor and the seafloor. It is commonly used on boats and ships for navigation and safety purposes.
The first echo sounder, called the fathometer, was first developed in 1914. It was created by R.A. Fessenden, initially created to detect icebergs.
To know water depths you need a fathometer. For navigation GPS is recomended.
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Basic Concept: Fathometer surveys determine water depths by repeatedly transmitting seismic energy through the water column and recording the arrival time of the reflected energy from the water bottom. The instrument calculates the water depth from these data and prints a depth value as a continuous graphic profile. Most fathometers use a narrow bandwidth 200 kHz seismic signal. They provide accurate depth information, but very little information about the subbottom. Fathometers that use a lower frequency, e.g., 20 kHz, can detect reflections from subbottom interfaces such as the bottom of an infilled scour hole.
There are infinitely many types of functions. For example: Discrete function, Continuous functions, Differentiable functions, Monotonic functions, Odd functions, Even functions, Invertible functions. Another way of classifying them gives: Logarithmic functions, Inverse functions, Algebraic functions, Trigonometric functions, Exponential functions, Hyperbolic functions.
The speed of sound in water is roughly 1.5 km per second. You need to multiply the time by the speed to get the total distance traveled. Then - since the sound has to move back and forth - you divide that result by 2.
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