Daytime (Quiescient) Vibration Measurement at top of Pier

  • Quick unscheduled measurement of pier one late afternoon

  • The discrepancy between data sets is likely due to a change the DSA input signal range. (Accidental autorange.)

  • Also note that this test was performed with the Dynamic Signal Analyzer, and not with the OVMS system.

Test Set A

  • Acceleration PSD:
    Paa_00.jpg

  • Displacement Spectral Density:
    Pxx_00.jpg

  • Displacement Spectral Density (with noise floor):
    noise_floor_00.jpg

  • Displacement spectral density forward sum:
    fwd_xx_00.jpg

Test Set B

  • Acceleration PSD:
    Paa_01.jpg

  • Displacement Spectral Density:
    Pxx_01.jpg

  • Displacement Spectral Density (with noise floor):
    noise_floor_01.jpg

  • Displacement spectral density forward sum:
    fwd_xx_01.jpg

-- JorgeEsguerra - 12 Apr 2010
I Attachment Action Size Date Who Comment
Paa_00.jpgjpg Paa_00.jpg manage 160 K 13 Apr 2010 - 01:17 UnknownUser Acceleration PSD
Paa_01.jpgjpg Paa_01.jpg manage 142 K 13 Apr 2010 - 01:21 UnknownUser Acceleration PSD
Pxx_00.jpgjpg Pxx_00.jpg manage 101 K 13 Apr 2010 - 01:17 UnknownUser Displacement Spectral Density
Pxx_01.jpgjpg Pxx_01.jpg manage 93 K 13 Apr 2010 - 01:21 UnknownUser Displacement Spectral Density
fwd_xx_00.jpgjpg fwd_xx_00.jpg manage 73 K 13 Apr 2010 - 01:25 UnknownUser Displacement spectral density forward sum
fwd_xx_01.jpgjpg fwd_xx_01.jpg manage 73 K 13 Apr 2010 - 01:25 UnknownUser Displacement spectral density forward sum
noise_floor_00.jpgjpg noise_floor_00.jpg manage 94 K 13 Apr 2010 - 01:46 UnknownUser Displacement Spectral Density (with noise floor)
noise_floor_01.jpgjpg noise_floor_01.jpg manage 101 K 13 Apr 2010 - 01:46 UnknownUser Displacement Spectral Density (with noise floor)
Topic revision: r3 - 14 Apr 2010, JorgeEsguerra
This site is powered by FoswikiCopyright © by the contributing authors. All material on this collaboration platform is the property of the contributing authors.
Ideas, requests, problems regarding Foswiki? Send feedback