Hydrophones

Beam Reach hydrophones

• Arrays
  • 4-element linear array (Lab40 model from LabCore Systems, Lon Brockelhurst) Though these are not calibrated, they are the same model as the elements in a similar array that was calibrated by Marla Holt. (Add her calibration curves here?)
  • 8-element beamforming array from Mike Dougherty (not operational)
• Single hydrophones (this should probably become or be supplemented by a Google spreadsheet)
  • Uncalibrated
    • ITCs
    • other CRTs
    • sonobuoys/Brent's
    • Mike's singles
    • etc...
  • Calibrated (see response curves below)
    • Interoceans (used courtesy Colorado College)
    • C54XRS (from Cetacean Research Technologies)

Calibrated response curves (all by Joe Olson at Keyport facility):

(one of Marla Holt's, but same model as those used by Beam Reach)

Wish list of other hydrophones

(Will review above as we try these out...)

• Hydrophone comparison matrix
• Naxys eHyd digital hydrophone (Expensive! APL paid ~$13k in ~2007/8)
  • Link to official spec sheet for Model 02345
  • [Archived official spec sheet] (fall '09)
  • PDF spec sheet extracted from Aloha mooring description .doc