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what is vibratory mode?

What do you mean exactly when saying anemometer is in vibratory mode? Regards

Posted to Update on #40 Vibratory Mode (Forum) by ROHAN JADHAV on 04-22-2009
Re: Replacement of #40C

Hello, Erick - The #40H is NOT the same sensor as the #40C. The #40H Hall Effect anemometer requires power and provides a square wave output signal. The #40C provides a self-generated AC sine wave output signal.

Posted to Update on #40 Vibratory Mode (Forum) by Julia Austin on 04-01-2009
Until you have new sensors to sell, what will you sell? Will NRG supply a different anemometer with tower orders until the problem is corrected?

Q: Until you have new sensors to sell, what will you sell? Will NRG supply a different anemometer with tower orders until the problem is corrected? A: NRG continues to offer the #40C sensor for sale either as part of our complete NOW systems or stand alone. Many customers have continued to choose this...

Posted to Update on #40 Vibratory Mode (Forum) by Julia Austin on 12-11-2008
Will NRG issue refunds or eventually, replacements?

Q: Will NRG issue refunds or eventually, replacements? A: Once the validation of the revised sensors is complete, NRG will provide details on a warranty program to replace sensors that exhibit scatter in their data.

Posted to Update on #40 Vibratory Mode (Forum) by Julia Austin on 12-11-2008
Even though it may not be of interest to everyone, will the cause and modifications be documented?

Q: Even though it may not be of interest to everyone, will the cause and modifications be documented? A: We will be writing a white paper that documents our investigation.

Posted to Update on #40 Vibratory Mode (Forum) by Julia Austin on 12-11-2008
Confirm that slides 8 and 10 (in the webinar presentation) show one, then both, then no bad sensors from top to bottom.

Q: Confirm that slides 8 and 10 show one, then both, then no bad sensors from top to bottom. A: On slides 8 and 10 the top plots show both sensors dragging, the middle plots show one sensor dragging, and the bottom plots shows both sensors as normal.

Posted to Update on #40 Vibratory Mode (Forum) by Julia Austin on 12-11-2008
How far back does the historical data go and has there ever been a period when no sensor dragging existed?

Q: How far back does the historical data go and has there ever been a period when no sensor dragging existed? Is the target series of anemometers still the same? January 2006 or later? A: The first report of sensor dragging was received in 2007. Review of data from the past five years indicates that...

Posted to Update on #40 Vibratory Mode (Forum) by Julia Austin on 12-11-2008
Transcript from #40C Progress Report Webinar 12/02/08

Please click on the link above to view the #40 Progress Report Webinar transcript.

Posted to Update on #40 Vibratory Mode (Forum) by Julia Austin on 12-08-2008
#40C Progress Report Webinar 12/02/08

Please click the link above labeled "#40C Webinar.pdf"

Posted to Update on #40 Vibratory Mode (Forum) by Julia Austin on 12-03-2008

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