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 do you mean by slip siding, Q.What do you mean by Slip Siding? If ...

Q.What do you mean by Slip Siding? If the Station yard is in a gradient steeper than 1 in 260 or there is a continuous falling gradient away from the station there is a possibi

Skid resistance of wearing course, Skid resistance of wearing course S...

Skid resistance of wearing course Skid resistance of wearing course in a bituminous pavement is contributed by macro texture (which implies the general surface roughness) and

Show the properties of elastomer, Q. Show the Properties of Elastomer ? ...

Q. Show the Properties of Elastomer ? Though elastomeric bearings offer a number of advantages as compared to steel bearings, many failures have been reported pertaining to the

CBR of soil, Why IRC 37-2012 has taken 90th percentile for pavement design ...

Why IRC 37-2012 has taken 90th percentile for pavement design of expressway or NH while they hav taken 80th percentile for state highway design ????????

What is a pressure bulb, What are the basic assumptions in Boussinesq's the...

What are the basic assumptions in Boussinesq's theory of stress distribution in soils? Illustrate the vertical stress distribution on a horizontal plane at a given depth and also t

Hill roads, functions of breast wall& scupper

functions of breast wall& scupper

Human values, give the two aspects of honesty& explain

give the two aspects of honesty& explain

Surveying, What is the least count of prismatic and surveyor compass

What is the least count of prismatic and surveyor compass

Staircase, The Figure 1 below shows a section through a stairway for a gara...

The Figure 1 below shows a section through a stairway for a garage in a new proposed dwelling. The stairway is 3 meters wide with 300 mm wide treads(7 treads) and 170 mm high riser

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