Define black and white fathometer - non-destructive testing, Civil Engineering

Assignment Help:

Define Black & White Fathometer - Non-Destructive Testing?

Most commonly used sounding device is black & white fathometer. The units are compact and easy to use. They consist of a transducer, which is suspended in the water, a sending/receiving device, and a recording chart, which displays the depth on paper. High frequency sound waves, generally in the range of 200 kHz, emitted from the transducer travel through the water until they strike the channel bottom and are reflected back to the transducer. The fathometer measures the time it takes the sound waves to return to the transducer, and converts that time to the depths of water, which are displayed on a graphic recorder in the form of a continuous plot of the channel bottom.


Related Discussions:- Define black and white fathometer - non-destructive testing

What is uniformly distributed surcharge, A retaining wall with a smooth ve...

A retaining wall with a smooth vertical back, 4.5 m high, retains a dry cohesionless backfill level with the top of the wall. γ = 18.6 kN/m 3 and φ = 30°. The backfill carries a u

Scale., how many scale are there and what are they use

how many scale are there and what are they use

Determine the liquidity index and void ratio of the sample, A piece of clay...

A piece of clay taken from a sampling tube has a wet weight of 1.553 N and volume of 95.3 cm . After drying in an oven for 24 hours at 105°C, its weight is 1.087 N. The liquid and

Explain procedure of remote sensing in satellites, Q. Explain procedure of ...

Q. Explain procedure of remote sensing in Satellites? Satellites used for remote sensing are of two types, viz, geostationary and polar orbiting. Geostationary stationary satel

Distomat, applications of distomat in briefly

applications of distomat in briefly

Concrete, what is the heat of hydration and gel space ratio?

what is the heat of hydration and gel space ratio?

Determine the allowable bearing pressure of the sand, Two load tests were c...

Two load tests were conducted at a site-one with a 0.5 m square test plate and the other with a 1.0 m square test plate. For a settlement of 25 mm, the loads were found to be 60 kN

Quantitative Influence Line, Solve the following three questions of the bea...

Solve the following three questions of the beam ABCD. Note that A is a fixed end; B is apin connection; C is a roller support; and D is a free end. 1) Sketch the quantitative

Mapping, how to understand maps easily?

how to understand maps easily?

Failure analysis in designing of a structure, Modes of failure • For sa...

Modes of failure • For safe design, a knowledge of the possible modes of failure is also necessary, e.g. failure of the structure could occur due to - Tensile fracture due t

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd