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

Report, report on lintels and arches

report on lintels and arches

Determine the co-ordinates of grain-size distribution curve, In a hydromete...

In a hydrometer analysis, 0.5 N of soil was mixed in water to form one litre of uniform suspen- sion. The corrected hydrometer reading after a lapse of 60 min. from the start of se

Define fatigue load test of shock transmission unit, Define Fatigue load te...

Define Fatigue load test of shock transmission unit? This test was carried out for 100,000 cycles for maximum capacity of STU, assuming the worst case that the 'Lock Up Load' i

Explain hydrology and evaporation, Explain Hydrology and Evaporation Hy...

Explain Hydrology and Evaporation Hydrology: Study of the circulation of water in nature.    Evaporation: Water in the liquid state transforms to vapor. Evaporation occurs f

Theories of failure - cases of solids, Theories of Failure - cases of solid...

Theories of Failure - cases of solids: Let us now consider the solid shown in Figure (b). (a)        As the principal stresses are within 260 MPa, the solid is safe ac

Priciples of working from whole to part in surveying, What are the principl...

What are the principles of working from whole to part in surveying?

What is objective method of assessment, Q. What is objective method of asse...

Q. What is objective method of assessment? Track recording consists of objective method of assessment of the quality of track with the help of sophisticated equipments. A conti

What is core-barrel samplers, Q. Core-barrel samplers: single tube sampler ...

Q. Core-barrel samplers: single tube sampler vs. double tube sampler vs. triple tube sampler Core barrel samplers are initially designed to sample rock. In single tube sampler

Plot vertical displacement - cantilever beam, 1. The cantilever beam-like s...

1. The cantilever beam-like structure  shown below is modeled  using  a 2 x 10 mesh of rectangular four-node plane stress elements of equal size. Do the following and compare with

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