Acoustic Emission DAQ need

[4serge]

Hi Jason, I am following this and I hope you will share how it worked out for you. 

I am also in academia and looking into AE as an additional tool to use in thermal analysis.

Cheers,

Serge

[Jason93]

wish I could. I didn't pull the trigger on the sensor. The cost was pretty high. It was going to cost me a $3k and up to use it. I bit expensive for something I'm only going to use in the future.

best of luck

jason

[Liwenhu]

Hi, Jason,

Just want to follow up if you eventually end up with Physical Acoustic's AE sensor and NI hardware. Our lab got one recently but I am having a hard time reading valid signals from the PA's amplifier.

[Henrik_Volkers]

What hardware are you using?  type of cables & length?  PA is using what I call a propriatary powering system  ...

(my crystal ball show impedance missmatch...  However, my crystal ball is unreliable, as it too often falls off the table unexpectedly 😉 )  the mouting could also be of great influence.

[Liwenhu]

I am using PA Nano-30 and PreAmp One (5V), this combination is recommended by the PA sales. Cables are BNC to BNC cables (1m), which came together with the sensors/DAQ.

What does "a propriatary powering system" refer to? The PA is not compatible with general DAQ?

Regards,

Liwen

[Henrik_Volkers]

I don't know what you are expecting.

The transferfunktion of your sensor is ..well.... a little up and down ... yours will be bit different, see your calibration protocol

What data aquisition do you use?

The  output of the PreAmp One expects a 50 Ohm BNC cable and a 50 Ohm input impedance at the DAQ.

(and schould be powered by via USB, the preamp will power the sensor ) ...

[Liwenhu]

Thanks for the reply, you can find my post about the setup here. 

Basically I mounted the sensor on a stationary surface and wanted to do a tapping test, but I couldn't see any vibration signal when I tapped the surface.