Figure 6: FRF comparison of 3DPT to a collocated accelerometer – Pt 1 horizontal. Figure 7: FRF comparison of 3DPT to a collocated accelerometer – Pt 1 vertical. 0 20 40 60 80 100 120 140 -180 -160 -140 -120 -100 -80 -60 p Frequency (Hz) Displacement/Force dB(m/N) 5mV/g Accelerometer 3D PT 0 20 40 60 80 100 120 140 -160 -150 -140 -130 -120 -110 -100 -90 -80 -70 -60 Frequency (Hz) Displacement/Force dB(m/N) 5mV/g Accelerometer 3D PT 250
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