Detecting that an accel was mounted backward.

Categories: Troubleshooting MillMax

Using TXF to view the FRF of a measurement.

This is a normal FRF. Note the real FRF goes up initially and the imaginary FRF are negative.

This is a FRF with the accel mounted backward. The real FRF goes down first and the imaginary FRF are positive numbers.

If this occurs when either the accelerometer is mounted backwards (unmarked side on the outside) or the hammer and accelerometer cables are reversed in the DAQ module.