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

Minimum and maximum area of reinforcement, Q. Minimum and maximum area of r...

Q. Minimum and maximum area of reinforcement? Minimum area of reinforcement vs. maximum area of reinforcement Beams can be designed to be larger than required for strength

3-tap to 6-tap increase water pressure, Will going from a 3-tap to 6-tap i...

Will going from a 3-tap to 6-tap increase water pressure? Ans) No, the pressure will be the similar, you will get more volume only if your pumps can handle the GPM, to enhance p

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

Steel, A No 10 steel rebar is tested in tension by monitoring the load read...

A No 10 steel rebar is tested in tension by monitoring the load reading of the testing machine it was found that the specimen yielded at aload of 41600lb and fractured at 48300 lb

Embankment construction, Embankment Construction: Selection of Soil...

Embankment Construction: Selection of Soil Soil is the material used for embankment construction, though other materials like rock and fly-ash are also used in specia

Manhole covers – triangular halves, Manhole covers - triangular halves ...

Manhole covers - triangular halves Manhole covers are usually made up of two pieces of triangular plates to form a square cover. One can wonder why two rectangular halves are u

Calculate the volume of 896, Solve the following problems related to Wastew...

Solve the following problems related to Wastewater flow and densities (a) The volume of 896, 000 lb of wastewater is? (b)  The weight of 13,000 ft3 of wastewater is? (c) A

Landing systems, Landing Systems: There are two basic types of landin...

Landing Systems: There are two basic types of landing, viz : (a) visual landing, when the weather conditions are favourable, and (b) instrumented landing, when the weat

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