I wondered what the structre of the spectrum means?

I checked the channel of the K1:VIS-ETMY_BF_LVDTINF_GAS_IN1_DQ.

1. There is small bump at 10Hz

2. There are some peaks around 130, 168, 200.6 and 240.1Hz

I don't know this spectrum affects to the DARM displacement, could someone let me know.

Also, I plotted the comparison between other Type-A suspensions.