Accession Number : AD0621674

Title :   A PROCEDURE FOR THE CORRECTION OF VELOCITY METER RECORDS,

Corporate Author : DAVID TAYLOR MODEL BASIN PORTSMOUTH VA UNDERWATER EXPLOSIONS RESEARCH DIV

Personal Author(s) : Walker,Ramon R.

Report Date : JUN 1965

Pagination or Media Count : 18

Abstract : Correction methods devised to compensate for certain mechanical characteristics of commonly used velocity meters are considered. The application of two corrections for such characteristics, usually referred to as seismic corrections and correction for bottoming, is illustrated and discussed for the measurement of absolute structural velocities. The correction procedures are shown to be theoretically justified. These procedures for correcting the velocity meter output in the measurement of absolute velocities are based on two major premises: One is that the suspension system is linear, and the other is that the entire system is at rest prior to the arrival of the shock motion. Although the procedures thus derived will be applicable in most practical situations, no fundamental limitation dictates either requirement. The procedure can be readily extended to cover the situations where only one or neither of these requirements is met, provided of course, that those situations can be adequately described. (Author)

Descriptors :   (*VELOCITY, MEASUREMENT), (*SHOCK WAVES, VELOCITY), CORRECTIONS, ANALOG COMPUTERS, INTEGRAL EQUATIONS, TRANSDUCERS, VIBRATION, DAMPING, ACCELERATION, SEISMIC WAVES

Distribution Statement : APPROVED FOR PUBLIC RELEASE