PP-SALB-EVM: recommendations or specifications for a laser sensor product for the laser input of this board

I second this request.  I noticed the "laser" labeled input on the board, but couldn't find any reference to it in the documentation or suggestion of how it might be used.

This seems like a powerful capability I'd like to take advantage of.

Josh

Thanks for that bit of info Roy, but how is the laser used specifically?  I've never seen anything in PPC3 that references a laser measurement - I'd expect there to be some kind of "I have a laser" setup check box or something that alters the process flow to include laser measurements.

Josh

Hi Josh,

Although Learning Board PP-SALB-EVM has the laser input on it, it does not support excursion data coming from laser measurement. That's why you couldn't see the alternative in PPC3. Therefore, you could either ask for the Bl value from the speaker vendor or apply the add-mass method to obtain the Bl value.

Best regards,

-Roy Hsu

Texas Instruments

Pulling BL from a datasheet is simple enough, but of course it would be much more accurate to actually measure it without having to go through the trouble of the added mass method.

You mentioned that you're "using" the Keyence laser vibrometer now at TI.  From that and the presence of the physical connection port on the board, I infer that this will be a feature to be added sometime in the (hopefully near) future.  Is that a fair assumption?

Josh