VELOCITY METER CORRECTIONS.
NAVAL RESEARCH LAB WASHINGTON DC
Pagination or Media Count:
The operation of the velocity meter for recording both steady state vibrations and transient responses is described. For the case of steady state vibrations the desirable characteristics of the velocity meter are presented for optimum performance. A correction equation is derived for finding the true base motion from velocity meter records of transient responses. This equation is applicable for any type of meter response, for records containing bottomings, and any non-linear characteristics of the meter which are mathematically describable. An example problem of a linearly damped meter is solved analytically by means of the correction equations for a known foundation motion. This same example is solved by the NAREC computer which has been programmed to correct velocity meter records. Author