what is a frequency converter?
a frequency converter, also known as a frequency changer, is a device that takes incoming power, normally 50 or 60 hz and converts it to 400 hz output power.
@pankajkumardas, 

converting geophysical data from the space (or time) domain to the frequency domain (via fast fourier transform) is common practice in geophysics, particularly when wanting to apply some sort of filter to that data. 

we do this because it is more computationally efficient to filter data in the frequency domain compared to the space domain. for example, applying a filter such as a first vertical derivative to a grid of magnetic data in the space domain requires convolution using a two-dimensional filter. depending on the type of filter, that process can be complex and therefore computationally expensive. 

transforming the data and the filter to the frequency domain allows us to simply multiply the two to get a filtered spectrum, which is then transformed back to a filtered grid in the space domain. this process is far more computationally efficient than convolution.

the following diagram describes the distinction between space and frequency domain filtering. it is taken from reeves (2005), which you can access here: http://www.geosoft.com/media/uploads/resources/technical-papers/aeromagnetic\_survey\_reeves.pdf




i'd urge you to download the document and review chapter 6, from which the diagram is taken.

best regards, US phones use Bellcore FSK caller id. India uses DTMF caller id. Buy a DTMF- FSK converter at a telecom shop. supercomputer is a type of computer that is use for high level of performance. the performance of a supercomputer is measured in floating point operations per second ( flops ).

it is impossible to know the exact numbers a quantity which can very from one individual to another is called a variable. 50 hz dear student,

each radio station is given a different frequency band and these
radio signals are sent at that particular frequency only
for example fm 93 5 or 94 3 etc are given radio frequencies given
in decimals only

if we see each radio station contains name like fm 93 5 or 94 3
etc

regards, switch the relationship of wavelength and frequency will appear as:using the wavelength range given, 280-320 nm, frequency range will be calculated using the equation above and by converting the values to the proper units [readmore]each wavelength must be in meters:we need to calculate the frequency for both 280 and 320 nm:range of frequency will appear as 1.07x1015 to 9.38x1014 s-1 answer: eddy currents are currents that circulate in conductors like swirling eddies in a stream. they are induced by changing magnetic fields and flow in closed loops, perpendicular to the plane of the magnetic field. they arise when a conductor moves through a magnetic field, or when the magnetic field surrounding a stationary conductor is varying. to summarise, we can say that anything which results in the conductor experiencing a change in the intensity or direction of a magnetic field produces eddy currents. the two uses of eddy current are: it is used in household current meters to measure power consumption. it is used to check whether the material or surface has any discontinuities, fractures, or faults without harming the material. what are the functions of a transformer? what is the working principle of a transformer? wave