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PEM (Center)
tatsuki.washimi - 14:54 Friday 31 March 2023 (24622) Print this report
Comment to Shaker injection test on the POP table covering box (24602)

I estimated the noise projection from the vibration of the POP box to the DARM, by ignoring the harmonics in the vibration and assuming the following equation:

DARM_{proj, f_1,f_2}(f)^2 = \frac{DARM_{inj}(f)^2 - DARM_{ref}(f)^2 }{\int_{f_1}^{f_2} \left[ PEM_{inj}(f')^2 - PEM_{ref}(f')^2 \right] df'} \times \int_{f_1}^{f_2} PEM_{ref}(f')^2 df'

If these results are correct, these noise contributions are much smaller than the current sensitivity.

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