Re: Generator of vibration
- From: Andy Resnick <andy.resnick@xxxxxxxxxxx>
- Date: Mon, 11 Jul 2005 08:52:31 -0400
marcello wrote:
Hi there, I'm Marcello from Italy I'd like to know if exists a device that produces mechanical vibrations of low intensity, where I can exactly set and display the working frequency, from 50 to 15000hz. I need that to study the sound resonance of some materials... I mean.. I apply the probe of the device on the specimen, and discover the frequencies that make it enter in resonance... thanks Marcello
Not enough information- how much power do you need to apply to the shaker? Over what frequency interval? What accuracy is required? What are you measuring the response with? Where are you placing the sensors? Where are you placing the driver? How is the device under test mounted to the source? How are the sensors mounted to the device under test? There's tons of companies that make mechanical drivers, calibrated hammers, shaker tables, and the like for excitation. There's another ton of companies that make accelerometers, displacement meters, and the software packages to decode the response data.
One moron I worked with tried to measure the resultant deflection with the sensor oriented 90 degrees from the excitation. Gee, and then he burned out the driver trying to get a measurable signal. I wonder why?
-- Andrew Resnick, Ph.D. Department of Physiology and Biophysics Case Western Reserve University .
- References:
- Generator of vibration
- From: marcello
- Generator of vibration
- Prev by Date: Re: Science Mag's top 125 unanswered questions
- Next by Date: Re: ghosts
- Previous by thread: Re: Generator of vibration
- Next by thread: Re: Generator of vibration
- Index(es):
Relevant Pages
|
