Geophones Applications available in Massachusetts
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Sound instrumentation for Human vibration
Vibration is simply defined as the variation of an object about a fixed position. To properly define and quantify the physical characteristics of vibration, however, is much more complex – account must be taken of the direction, frequency and magnitude of vibration. Then, what properties should be measured? Is it appropriate to measure the displacement of the vibrating object as a measure of its amplitude, or should we instead measure velocity, or acceleration? What are the conventions for measuring ...
By Norsonic AS based in Tranby, NORWAY.
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Seismic borehole and surface solutions for soil dynamic parameter investigation sector
Site classification according to EC8 and DIN4149. In order to quantify the design load for buildings due to an earthquake the Eurocode 8 (EC8) and the DIN4149 require the classification of the ground. The dominating or average shear wave velocity in depths down to 30 m is most often used for this classification. Beyond that the standards request certain design features as flexible foundation beams based on the class of the subsoil which are affecting the costs of a building. A seismic survey can often reduce the ...
By Geotomographie GmbH based in Neuwied, GERMANY.
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