Hardware for sound measurement

[behemot_]

I have to make software and select hardware for sound measurement but I can't use NI 455x. I have to simultaneously measure sound send data (by internet) to PC and transform measured voltage to sound power. The best solution, hardware from NI for me will be with two 7-pin LEMO conectors and one RS232, unfortunately I think that NI doesn't have 7-pin LEMO conectors, so maybe you have hardware compatibile with this device : http://www.grasinfo.dk/documents/pd_50AI_ver_07_07_03.PDF  or maybe other proposal?

Thanks for every answer. 

[Wiebe@CARYA]

Sounds to me you want to play sounds.

Why can't you use a sound card?

Regards,

Wiebe.

[Joeri_Wingelinckx_NI]

Hello,

I don't know if I fully understand your application.
So using the Sound-intensity Probe Type 50AI you would like to measure "sound", send this measured data over the internet to another PC and do overthere the analysis (sound power)?

Why do you need the RS-232?

Does you application need to be portable?

Can't the sound power analysis also be don't before sending the results over the internet?

First of all I would say, don't let the LEMO connector hold you from looking at an NI solution.
I see the Sound-intensity Probe Type 50AI has many configurations, each with a different adapter set, so it looks to me there is no real standard for this type of measurement.  If you need a LEMO adapters or connector, you will find them elsewhere too.

The advantage of these PC based solutions is that it already have a serial and ethernet port.    

As you see, I stillhave many questions to fully understand your application.

Can you provide me some more details?

Otherwise you can always call your local NI Branch which will guide you trough possible products.

You can find local branch information here: http://www.ni.com/contact

[behemot_]

Frankly it would be better for me to use this probe kit: http://www.bksv.com/doc/bp1880.pdf from B&K, because company has already this device, and on this probe kit I have 2 7-pin LEMO connectors and serial communication.

but I have to use hardware from NI (and I think you don't have 7-pin LEMO) so I have found intensity probe type 50AI which I can choose outputs (as you wrote)

Device which generates sound is huge and operator, who holds all equipment, during measurement is moving on big area.

So I need hardware from NI which can co-operate with probe kit from B&K or type 50AI and simultaneously collect data and send to PC (operator who holds probe kit and hardware will make measurement on first flor and PC has to be on second flor). So I suppose that the only way to send data from hardware to PC in through the internet.

Also hardware shouldn't be very heavy. 

I have already written software using Sound&Vibration Measurement Toolkit so I just need hardware now.  

I have been trying to find hardware by my self but lately your web-sides was so slowly that couldn't find enything and I have spent a lot of hours, also I was trying to call to you but I could't get connection (I don't know why). 

[Joeri_Wingelinckx_NI]

Hello,

You are indeed correct that the NI website quite slow lately.  National Instruments is currently undergoing a major network upgrade which affects the website speed time to time.
All should be a full speed again.

Now, whatever microphone kit you choose, National Instruments will always have a solution for you if you can overcome the "LEMO connector issue".

One thing  which is not clear reading the available datasheets of the microphone kits, is the usage of the DB-9 connector.
Is this really use for serial communication (RS-232) or simply as a signal connector.?

How are the connections in the LEMO connector?

Taking the portability and flexibility into account, it's maybe a nice idea to look at the Compact RIO platform.
This platform exist of a real-time controller, an chassis with integrated FPGA chip and measurement modules.

It has an Ethernet port, a USB port (can be used for a memory stick) and an RS-232 port.  

A possible system for you could exist of a cRIO-9012 controller,  a 4 slot chassis and the NI-9234 measurement module.

If you want for example direct wireless Ethernet connection, you can have a look at the available 3rd party modules.

So actually it has all benefits to be portable with network connectivity. 

As you already wrote an application, I suppose based on the NI-44xxboards, it may be also worthfull to have a look at the PXI platform.

The PXI platform exist of a chassis, with a controller (actually a small form factor PC) and measurement modules.  It can run on Windows OS (XP or Vista) and/or a Real-Time OS.

The PXI-1031DC is a chassis which can also be powered by a battery. Our most performing controller is the PXI-8108 which has just like a normal PC all peripheral connections for USB, Ethernet, RS-232, DVI, ...  A possible dynamic signal measurement module could come from the NI-44xx range.

This system is a little bigger than the cRIO platform, but still "portable".  As PXI is an open industry standard, industrial wireless Ethernet products are available from 3rd party companies.

Eventually you can have a look at the new product range of wireless measurement modules.

Like the WLS-9234.Attention: this may look at the most portable solution, but it has only 4 analog input for sound & vibration measurements (including IEPE/ICP signal conditioning), but no RS-232 connection.  This would only be a feasible solution if you only need to measure the signal without setting certain control line or registers to the microphone.

Anyhow, as it is important to select the appropriate hardware for you application I can only recommend you to call in to your local National Instruments branch.
Qualified engineers are available to go over your specification.  Also a visit at your company (with demonstration) is possible.