WordNet
n. the vector sum of all the forces exerted by an electrical or magnetic field (on a unit mass or unit charge or unit magnetic pole) at a given point in the field [syn: field intensity]
Wikipedia
In physics, field strength (also signal strength) means either the magnitude of a vector-valued field (e.g., in volts per meter, V/m, for an electric field E) or its square, the intensity (in watts per square meter, W/m, for E as above). For example, electromagnetic field results in both electric field strength and magnetic field strength. As an application, in radio frequency telecommunications, the signal strength excites a receiving antenna and thereby induce a voltage at a specific frequency and polarization in order to provide an input signal to a radio receiver. Field strength meters are used for such applications as cellular, broadcasting, wi-fi and a wide variety of other radio-related applications.
In theoretical physics, field strength is another name for the curvature form. For the electromagnetic field, the curvature form is an antisymmetric matrix whose elements are the electric field and magnetic field: the electromagnetic tensor.
Usage examples of "field strength".
Gravity at the Object's surface tended to be of the same order of magnitude as that at the surface of the Earth, so closely matched as to be generally comfortable for unarmored Solarians, though the field strength varied from hour to hour and from place to place, sometimes changing substantially within a few hundred meters.
We wouldn't be measuring the electromagnetic field strength and the gravimetric effects of the warp field today.
Nevertheless, the field strength had dropped by another fourteen percent.