free field


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free field

a field (three-dimensional space) in a homogeneous, isotropic medium free from boundaries; in practice, a field in which boundary effects are negligible.

free field

A space in which there are no surfaces that reflect specific frequencies of sound.
See also: field
References in periodicals archive ?
The canal starts externally anteriorly in front of the free field and terminates behind the posterior margin of the keel.
One free field water pressure transducer (P2) to distinguish blast loads is suspended at the water depth of 4 m.
Since we would like to preserve the gradient invariance of the Lagrangian and to get Maxwell equations for the free field in the [H.sub.4] space, let us write the electromagnetic part of tensor [h.sub.ijkl] in the following way
Saberi, Dostal, Sadralodabai, Bull, and Perrott (1991) examined the detectability of a broadband click train as a function of its angular separation from a broadband Gaussian noise masker in the free field. Both horizontal and vertical separations between the signal and the masker were examined.
The pure-tone signal and the masker were presented from loudspeakers in a free field. The loudspeakers were located in the horizontal plane at the listener's ear level, and the azimuthal separation of the signal and masker loudspeakers was varied.
to name here are essentially: - construction of handrails in the area of special temporary areas, - erection of a handrail in the rescue tunnel (one-sided execution), - construction of fire-resistant closures, - clearing in the area of the outdoor cable channel at the west portal, - earthwork for the establishment of free field, - control cabinets and the portal barriers, - dismantling of the prov.
The Rhode Island Department of Environmental Management (DEM) announced it is hosting a free field training workshop for hunters this month.
free field support and equal opportunities for children and young people to participate in arts and culture, both million euros, Minister Terho notes.
Request for quotations : numerator-dater (a metal datater with a seven-digit free field)
Package polyethylene packing 540x400mm, HDPE, thickness 14 microns, with color logo according to the attached sketch (for packing bed linen) with a through hole 10mm in diameter for airing the laundry (it is made in the middle of the free field between the inscriptions "breakaway" and "Belarusian Railways").
Tenders are invited for Quartz Free Field Icp Blast Pressure Pencil Probes Along With Accessories