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 no fines concrete, Q. What do you mean by No fines conc...

Q. What do you mean by No fines concrete? Sometimes no fines concrete is used in houses due to its good thermal insulation properties. Essentially no fines concrete comprises c

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

Air pollution, chlorosis in plants is caused by

chlorosis in plants is caused by

What is stilling basins, Q. What is Stilling basins? Stilling basins ar...

Q. What is Stilling basins? Stilling basins are usually introduced to convert supercritical flow to subcritical flow before it reaches downstream. A typical stilling basin comp

RAFTING, WHY RAFTING IS REQUIRED AND WHAT PRECAUTIONS SHOULD BE TAKEN DURIN...

WHY RAFTING IS REQUIRED AND WHAT PRECAUTIONS SHOULD BE TAKEN DURING RAFTING? AND WHAT IS THE ALTERNATE OF RAFTING.?

STRUCTURAL DYNAMICS, Consider a diver weighing 200 Ib at the end of a divin...

Consider a diver weighing 200 Ib at the end of a diving board that cantilevers out 3 ft. The diver oscillates at a frequency of 2 Hz. What is the flexural rigidity E I of the divin

Unsymmetrical bending, An 8 kN.m moment is applied at the end of a block fi...

An 8 kN.m moment is applied at the end of a block fixed into the ground as illustrated in thefigure below. The moment vector (double arrow head representation) acts in line with th

Determine the water-cement ratio, A concrete batch plant provided the Desig...

A concrete batch plant provided the Design Strength for the engineer's mix design to match the project's specification requirement for a 4000 psi Tremie pump mix.  The Water-cement

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