http://www.nortekusa.com/en/knowledge-center/forum/velocimeters Questions or comments about Vectrino and Vector Velocimeters daily 1 2007-11-12T12:20:37Z http://www.nortekusa.com/en/knowledge-center/forum/velocimeters/125920818/592922428/view Hi P.J., Sorry, I was wrong, it is Vectrino (not Vectrino II). Among the output files are *.adv and *.vno. WinADV software reads .adv files.   However ... 2012-01-18T16:04:27Z Comment http://www.nortekusa.com/en/knowledge-center/forum/velocimeters/125920818/592922427/view Hi Michele,   I don't think WinADV will work for Vectrino II data. Fundamentally there's no reason it won't since the data is just a bunch of stacked ... 2012-01-18T14:58:39Z Comment http://www.nortekusa.com/en/knowledge-center/forum/velocimeters/125920818/656051593/view Hello there, my name's michele. I collected data in a laboratory flume using Vectrino II. In the flume was reproduced an irregular wave motion (significant ... 2012-01-18T13:55:26Z Comment http://www.nortekusa.com/en/knowledge-center/forum/velocimeters/962940299/856429110/view   I managed to talk to Atle about this and his initial thought was 0.5 m. The big problem is there is nothing to attenuate the signal when the transmitters are ... 2011-12-19T18:37:34Z Comment http://www.nortekusa.com/en/knowledge-center/forum/velocimeters/962940299/170315075/view Hi all,   We have a researcher visiting the wave lab  in January who would like to have 2 of our side-looking Vectrinos in the large wave flume ... 2011-12-19T17:09:21Z Comment http://www.nortekusa.com/en/knowledge-center/forum/velocimeters/577870840/728861713/view I'm not aware of any publications specifically dealing with noise in the amplitude and SNR data, but I think conceptually it's pretty similar to the velocity ... 2011-12-01T17:10:07Z Comment http://www.nortekusa.com/en/knowledge-center/forum/velocimeters/577870840/728861712/view Hi there, I am trying to calibrate a Vectrino to find suspended concentration of kaolin in a lab environment. That works reasonably well for the range ... 2011-12-01T16:08:22Z Comment http://www.nortekusa.com/en/knowledge-center/forum/velocimeters/536546468/783813012/view Hi Carl:   It looks like you're good.  There is always one velocity header record generated at the start of data collection and subsequent ones will be ... 2011-11-29T16:23:48Z Comment http://www.nortekusa.com/en/knowledge-center/forum/velocimeters/536546468/348783810/view Hi Robert, Thanks for your thoughts on this data set.  To clarify, I made the measurements as a series of separate data files from different positions and ... 2011-11-29T15:42:46Z Comment http://www.nortekusa.com/en/knowledge-center/forum/velocimeters/536546468/348783809/view The Matlab config information doesn't quite capture all of the configuration settings and how the ping interval was selected is one of them (the information is ... 2011-11-29T05:47:31Z Comment http://www.nortekusa.com/en/knowledge-center/forum/velocimeters/30180996/402826857/view Previously Kourosh wrote: ... I wonder if anyone has experienced spikes in a tidal measurment and whether has come to a sloution, or any comments or ... 2011-11-28T23:15:31Z Comment http://www.nortekusa.com/en/knowledge-center/forum/velocimeters/536546468/993836592/view Thanks, P.J.  Trust me, I wish I could go back, choose a more appropriate velocity range setting, and make these measurements over again, but that's just not ... 2011-11-28T22:55:55Z Comment http://www.nortekusa.com/en/knowledge-center/forum/velocimeters/536546468/714805500/view Based on the beam velocity plot, the simple solution is to collect the data again. But, that's not really an option for you. Your correlation and SNR numbers ... 2011-11-28T21:11:17Z Comment http://www.nortekusa.com/en/knowledge-center/forum/velocimeters/536546468/714805499/view Hi P.J., Thanks for the clarification on the transformation matrix.  With that correction, I obtained the attached plot, which shows all four beams maxing ... 2011-11-28T20:41:37Z Comment http://www.nortekusa.com/en/knowledge-center/forum/velocimeters/536546468/411903742/view Hi Carl, The transformation matrix for the Vectrino II range cells is stored in Config.ProbeCalibration_calibrationMatrix, one row per each cell. To get the ... 2011-11-28T19:36:19Z Comment http://www.nortekusa.com/en/knowledge-center/forum/velocimeters/536546468/773999544/view Hi Robert, Thanks for your thoughts on this data set.  The measurements were made with a Vectrino II at the Saint Anthony Falls Outdoor Stream Lab facility, ... 2011-11-28T19:21:30Z Comment http://www.nortekusa.com/en/knowledge-center/forum/velocimeters/536546468/773999543/view Hello P.J., Thanks for your response.  I looked at the primer you mentioned and can try the approach you've outlined to determine if my data have indeed ... 2011-11-28T19:13:28Z Comment http://www.nortekusa.com/en/knowledge-center/forum/velocimeters/536546468/10177572/view Hi Carl:    I had another look at the data and it does look quite odd when I think about it.  Discrete jumps in velocities are usually a sign of phase ... 2011-11-27T15:30:57Z Comment http://www.nortekusa.com/en/knowledge-center/forum/velocimeters/536546468/826402445/view Search for "ambiguity jumps" or "phase wrapping" and you'll find various posts on how to correct these. I think it is also covered in the Pulse Coherent Primer ... 2011-11-22T14:06:56Z Comment http://www.nortekusa.com/en/knowledge-center/forum/velocimeters/536546468/860117042/view Hi Robert, These data are from work I performed as a visitor at another lab, and I was not familiar with the instrument, so I fear that the velocity range I ... 2011-11-21T22:48:39Z Comment