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CRY (Cryo-payload EY)
takahiro.miyamoto - 6:10 Monday 30 April 2018 (4898) Print this report
Phase I shift : ETMY transfer function measurement

Phase I test of ETMY transfer function 

we measured the transfer function
- TML(act) to TML(strain) --> graph1
- IML(act) to TML(strain) --> graph2
- MNL(act) to TML(strain) --> graph3
(in the case of ETMY, we use High power coil driver at all stages of the cryogenic payload.)
 
we found the ~7.6Hz pitch motion of the payload.
we were not able to measure the TF from 7Hz to 8Hz due to this 7.6Hz mode,
because when we excited the ~7.6Hz, the mich lock lost.
 
address of these data:
/users/VISsvn/TypeApayload/ETMY/TF/Measurements/20180429
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Comments to this report:
takahiro.miyamoto - 8:27 Monday 30 April 2018 (4899) Print this report

these coherences were high enough except around resonant peek.

 

these text date is here ---> /users/VISsvn/TypeApayload/ETMY/TF/Measurements/20180429_PhaseI

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yutaro.enomoto - 17:38 Tuesday 22 May 2018 (5039) Print this report
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