Acquiring Gear Friction sound signals from a strain gauge using DAQ hardware.

[BLAK]

Hi

We have 2 Gears rotating and we have mounted strain gauge on the back of the Gear during rotation we are planning to acquire the fricition noise. I appreciate if anybody can help me to capture this friction noise and record in the DAQ.

Thanks

BLAK

[RavensFan]

What type of sensor are you using to collect this friction noise?  Is it some sort of microphone?

How does the strain gage factor into this?  What are you trying to measure the strain on?  If it's rotating, how are you planning on getting the signal off?  Slip rings or a telemetry system?

[BLAK]

Using Telementary system.Trying to convert the millivolt output to volts, is it possible to convert this volts to fricition display.

[preston_johnson]

I am not sure how to convert the volts to friction.  However, you should use the strain gauge factors to convert to strain.  Once you have strain, you are likely to see the "friction" as strain that appears and dissapears as the gears "tug" against each other, perhaps due to varied torque, etc.