Simcenter Testing Solutions Sound Intensity Probe Remote Control Setup

The process depends on which G.R.A.S intensity probe you are using to perform measurements. G.R.A.S is a manufacturer of microphones, intensity probes, and other acoustic products (www.gras.dk).

There are two models of G.R.A.S intensity probes 50AI-D (Two Button Probe) and 50AI-L (Four Button Probe) supported by Simcenter Testlab Sound Intensity Testing:
 

G.R.A.S. 50 AI-D Two Button Intensity Probe

G.R.A.S. 50 AI-L Four Button Intensity Probe

50AI-D Two Button Intensity Probe
 

• First you edit a INI file (*.ini) that is located in the following directory: C:\Program Files (x86)\Simcenter\Testlab {version}\central\Configuration per the default installation.

• After navigating to the correct directory cited above open the ‘SoundIntensity.ini’ file. Lines with a # sound are comments and not read.  Under [Intensity Probe], remove the # sign (i.e., uncomment) for 'Type' and 'Port' as shown.

• With ‘Type’ parameter is set to ‘G.R.A.S 50AI-D’, check for the correct Port setting in Device Manager. To quickly access the device manager use the MS ‘Search Windows’ function.

• In Device Manager, look under "Ports (COM & LPT)".  When the Probe is plugged in via USB (or use a Serial to USB adaptor if needed) to the computer, a COM port entry should appear as shown.  The entry should appear/disappear as the probe is plugged/uplugged. The actual COM number will vary depending on availability.

  

  • Start Simcenter Testlab Intensity Testing.  From the main menu, under "Tools -> Add-ins" turn on 'Intensity Probe Remote Control’.

    

• Now the intensity probe buttons are ready for use

• Note the behavior of the remote varies according to status of the system. These differences are outlined in below:

50AI-L Four Button Intensity Probe

• Plug the four button G.R.A.S intensity probe into any available USB port an the LED power should turn on

• Next, activate the corresponding add-in: ‘Tools -> Adds-in -> Remote Control’

• Now the intensity probe buttons are ready for use

• Note the behavior of the remote varies according to status of the system. These differences are outlined below in Figure B.

Questions?  Email charles.rice@siemens.com or contact Siemens Support Center.

Related Links:

• Index of Testing Knowledge Articles
• Sound Intensity
• Simcenter Testlab: Measuring Sound Intensity
• Simcenter Testlab: Sound Intensity Analysis
• Sound pressure, sound power, and sound intensity: What is the difference?
• Sound fields: Free and diffuse field, near and far field
• Sound Transmission Loss
• Simcenter Testlab: Measuring Transmission Loss using Rooms