Measuring and testing – Instrument proving or calibrating – Apparatus for measuring by use of vibration or apparatus for...
Patent
1997-05-29
1999-09-07
Patel, Harshad
Measuring and testing
Instrument proving or calibrating
Apparatus for measuring by use of vibration or apparatus for...
367154, G01M 114, G01N 2900, G01V 1300, H04R 102
Patent
active
059489596
ABSTRACT:
A method is presented to calibrate the transfer function for a fluid-filled compliant cylinder as a function of wavenumber and frequency. An air-filled compliant cylinder has a first linear array of force sensors coupled to the cylinder's exterior surface. A turbulent flow field is generated in a fluid environment about the first linear array which generates an output indicative of pressure incident thereupon. A fluid-filled compliant cylinder identical in diameter to the air-filled compliant cylinder houses a second linear array of force sensors. A similar turbulent flow field is generated in the fluid environment about the fluid-filled complaint cylinder to generate an output indicative of pressure incident upon the second linear array. The ratio of outputs is indicative of the transfer function of the fluid-filled compliant cylinder. Each output can be further adjusted by a calibrated sensitivity of the corresponding first and second linear arrays. The method compensates for elastic scattered pressure fields and the wavenumber-frequency dependence of the air-filled compliant cylinder's sensitivity to pressure.
REFERENCES:
patent: 4223397 (1980-09-01), Bakewell, Jr. et al.
patent: 4290123 (1981-09-01), Pickens
patent: 4320468 (1982-03-01), Montross
patent: 5473578 (1995-12-01), Konrad
patent: 5530678 (1996-06-01), Kosalos
patent: 5535176 (1996-07-01), Yang
patent: 5550791 (1996-08-01), Peloquin
patent: 5757721 (1998-05-01), Hull
Peloquin, Mark S.; A Closed-Form Dynamic Elasticity Solution to the Fluidructure Interaction Problem of a Two-Layer Infinite Viscoelatic Cylinder with Inner and Outer Fluid Loading Subject to Forced Harmonic Excitation, NUWC-NPT Technical Report 11,067 Dec. 29, 1995.
Clark Robin C.
Kasischke James M.
Lall Prithvi C.
McGowan Michael J.
Patel Harshad
LandOfFree
Calibration of the normal pressure transfer function of a compli does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Calibration of the normal pressure transfer function of a compli, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Calibration of the normal pressure transfer function of a compli will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1805884