In-vacuum OMC DC PD Pre-amplifier Board

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Other Versions:

JGW-D1809177-v3
06 Nov 2018, 09:58

JGW-D1809177-v2
05 Nov 2018, 15:35

JGW-D1809177-v1
19 Oct 2018, 22:21

JGW-D1809177-v0
12 Oct 2018, 21:51

Abstract:: Pre-amplifier board for OMC DC PD in-vacuum.

Related Wiki;
http://gwwiki.icrr.u-tokyo.ac.jp/JGWwiki/KAGRA/Subgroups/IOO/OMC/DCPDCalculation

Same as LIGO-D060572-B3
https://dcc.ligo.org/LIGO-D060572/public

Test procedure can be found here:
https://dcc.ligo.org/LIGO-E1600207/public

OMC DCPD characterization for aLIGO transition
https://dcc.ligo.org/LIGO-T1300552/public

Produced three boards but some parts were wrong.
- U1, U2 was LT1028 instead of LT1128.
- U3 was AD628 instead of AD8672.
- R8, R10 was 27.1 Ohms instead of 100 Ohms.
- C9, C10 was 4.7 pF instead of 10 nF.
- C4, C5 was 10 pF instead of omit.
- L3 was 4.7 uH instead of 0 Ohm.

== Serial Numbers ==
SN 1: Manually corrected U1, U2, U3, R8, R10 (2018.10.12 by Takano, Nakashima, Michimura). Manually corrected C9, C10, C4, C5, L3 (2018.10.16 by Michimura) -> BROKEN (as of 2018.11.05)
https://klog.icrr.u-tokyo.ac.jp/osl/?r=6539

SN 2: Manually corrected U1, U2, U3, R8, R10, C9, C10 (2018.10.15 by Takano). Manually corrected C4, C5, L3 (2018.10.19 by Michimura)

SN 3: Manually corrected U1, U2, U3, R8, R10, C9, C10, C4, C5, L3 (2018.11.05 by Michimura)

Files in Document:

DCPD_b_stuffing_forKAGRA.xls (34.5 kB)
SN1-3_TFandNoise.zip (1.2 MB)
SN1_Original.JPG (1.9 MB)
SN2-3_TFandNoise_rawdata.zip (9.5 MB)
not final version (SN1_Corrected.JPG, 1.2 MB)