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Basicly you're right. Concepts are correct, and there are many relations between them and many branches from each of them, in a theoric and empiric sense.

Maybe you are confused. Panel has a resonance frequency, and resonator has one too. You can build a resonators array with a panel or more (perforated) please review www.iperf.org. I hope help you. Luck

Hi all: I want to ask if i can use an accelerometer with a different sensivity than original, and if yes, do i have to make any correction, how? Thanks and luck

what accelerometer can be used in a B&K 2513 vibration meter instead the original 4384?

I'm looking for a Bruel and Kjaer 4384 accelerometer, an magnet mounting and a adapter. Have anybody one of that? any information will be appreciated.

Yes friend, I have this book, but i'm looking for an equipment.

Someone already had asked about it, but I want to know if there are more companies offering this class of acoustic absorber? Thanks.

Friends: First, Happy and succesful new year. I'm looking information about human vibration meters, specially respect whole body. Any information will be welcome. Thanks

You can find companies related to ANC here: http://users.erols.com/ruckman/MoreInfo.htm

If I understand your requested info, you could try on Noise and Vibration and Control by Leo Beranek, chapter 10 i think, (jet noise). I hope this help you

Dear friend take a look to federal transit administration (fta) website Luck

you can see on BS 5228 Noise control on construction and open sites. the federal transit administration have some informnatiuon about it: www.fta.dot.gov/office/planning/ep/subjarea/noisevibration.html. I hope help you.

I`m looking for costs of sound intensity meter equipment. If somebody know about sites or companies that sell that, new or used, plesae help.

Friends: i'm asking for the next case: a screw compressor, with twin rotor, that rotates at 2900 rpm. The rotor are a male and female system with five lines. I want to know what are the main frequencies generated by this system?. I'm thought these are near 50, 250 y 500 Hz. I hope understand...

Friends: i'm asking for the next case: a screw compressor, with twin rotor, that rotates at 2900 rpm. The rotor are a male and female system with five lines. I want to know what are the main frequencies generated by this system?. I'm thought these are near 50, 250 y 500 Hz. Thaks for helping

Hi friend: read Noise and Vibration Control (1971) by Leo Beranek, there is a chapter dealing with jet noise, I gues the chapter 9 or 10. luck

I need to know about simples procedures for modeling vibrations if they exists. I nedd to know about a web with basics of vibrations, too. Finally i need an table with typicals acceleration levels for machines, operations etc. Thank for your help.

Really the noise is too high, but, first, you have to know the noise character to can know what machine or element is causing it. Maybe the noise is generated by the motor, or compresor or a misalignement between both of them that cause a overload and noise. The first step to attack noise is...

Can do convert from velocity vibration to aceleration vibration, directly or by a factor or procedure. I need to specify vibration values in acceleration, but references are in velocity terms. Thanks.

I need some information about vibrations generated by flows in a duct. The aim is to identify diferents spectra for diferent flows, like water, gas, etc. Thanks