OROS OR35 vs Spec. Dynamics Cougar
OROS OR35 vs Spec. Dynamics Cougar
(OP)
Hello vibe experts. I would appreciate some advice here.
I've been asked to decide between two vibration analyzers for our research team.
Brief background: We do floor vibration testing on lab specimens and real building floors. We use one output channel to send signals to our big shaker, one input channel for our shaker force transducer, and 2-6 input channels for accelerometers. We use typical burst chirps during our modal tests and estimate FRFs. We also do other types of even simpler tests such as walking on the slab and measuring the accelerations, decay tests, and impact hammer tests. Pretty easy stuff from a ME or AOE standpoint, LOL, but hey, we're civil stuctural guys so it's cool to us.
I've narrowed it down between:
http://www.oros.com/EN/products/analysers/or35.php and
http://www.spectraldynamics.com/COUGAR.htm
The OR35 is just a little more expensive, but I think it's probably a much nicer system. Can anybody confirm this?
How are OROS' customer service, overall quality, and durability?
Any insight would be greatly appreciated.
I've been asked to decide between two vibration analyzers for our research team.
Brief background: We do floor vibration testing on lab specimens and real building floors. We use one output channel to send signals to our big shaker, one input channel for our shaker force transducer, and 2-6 input channels for accelerometers. We use typical burst chirps during our modal tests and estimate FRFs. We also do other types of even simpler tests such as walking on the slab and measuring the accelerations, decay tests, and impact hammer tests. Pretty easy stuff from a ME or AOE standpoint, LOL, but hey, we're civil stuctural guys so it's cool to us.
I've narrowed it down between:
http://www.oros.com/EN/products/analysers/or35.php and
http://www.spectraldynamics.com/COUGAR.htm
The OR35 is just a little more expensive, but I think it's probably a much nicer system. Can anybody confirm this?
How are OROS' customer service, overall quality, and durability?
Any insight would be greatly appreciated.





RE: OROS OR35 vs Spec. Dynamics Cougar
I've done this in the past and it quickly filters out the wannabees.
Cheers
Greg Locock
Please see FAQ731-376: Eng-Tips.com Forum Policies for tips on how to make the best use of Eng-Tips.
RE: OROS OR35 vs Spec. Dynamics Cougar
Gut feel for which is better?
RE: OROS OR35 vs Spec. Dynamics Cougar
Cheers
Greg Locock
Please see FAQ731-376: Eng-Tips.com Forum Policies for tips on how to make the best use of Eng-Tips.
RE: OROS OR35 vs Spec. Dynamics Cougar
It uses an ethernet connection instead of a hideous SCSI connection. We've had never-ending problems with SCSI connections in the past. This was the main thing that swayed me.
They also get the "gut feel" points because I've contacted a tech guy very fast both times I called. In the past, we've had trouble with our SigLab units and got little help from Spec. Dynamics, although this is anecdotal. Our SigLab units have been difficult to deal with, so the Cougar loses points by association. OROS only wants $1700 more, and I think the ethernet conn vs SCSI is worth that all by itself.
I hope I'm right because that was a $20k decision.
RE: OROS OR35 vs Spec. Dynamics Cougar
It's the little things that make or break deals sometimes.
RE: OROS OR35 vs Spec. Dynamics Cougar
I definitely would NOT consider LMS; their software, in addition to being buggy, is the antithesis of "user friendly."
RE: OROS OR35 vs Spec. Dynamics Cougar
RE: OROS OR35 vs Spec. Dynamics Cougar
The one time I contacted Spectral Dynamics via their website, the e-mail reply I received from them contained a virus!
Fortunately, our corporate firewalll identified and dealt with it.
RE: OROS OR35 vs Spec. Dynamics Cougar