Reports until 15:02, Friday 22 July 2016
H1 ISC (ISC)
haocun.yu@LIGO.ORG - posted 15:02, Friday 22 July 2016 - last comment - 11:05, Friday 28 February 2025(28589)
Summary of WFS spec

I am working on the Noisebudget Model these days and made a summary of the WFS in use with calibrations:

WFS

Serial No.

RF Trans.

[Ω = V/A]

Responsivity

[A/W]

Demod. Gain

[dB]

Whit. Gain

[dB]

(40W)

ADC

[cts/V]

Digital Gain

Cal

[cts/W]

Freq.

Q1

Q2

Q3

Q4

AVE

REFL_A

S1301242

9 MHz

894

894

1069

974

958

0.85

21

21

1638

1

1.7E8

45 MHz

642

662

657

634

649

21

1

1.14E8

REFL_B

S1301243

9 MHz

822

873

742

861

824.5

0.85

21

21

1638

1

1.44E8

45 MHz

678

644

635

648

651

21

1

1.14E8

AS_A

S1300635

36 MHz

810

828

872

891

850

0.85

21

12

1638

1

5.3E7

45 MHz

707

718

732

766

731

3

1

1.6E7

AS_B

S1300634

36 MHz

846

904

826

832

852

0.85

21

15

1638

1

7.5E7

45 MHz

644

711

719

691

691

3

1

1.5E7

 

Calibration (from W to cts) = RF Trans. * ADC * Responsivity * Digital Gain * 10^(Demod. Gain + Whit. Gain)/20

Comments related to this report
corey.gray@LIGO.ORG - 11:05, Friday 28 February 2025 (83111)
Link

Just a note for ASC WFS REFL_A:  S1301242 was swapped out in 2022 for S1301248.  See alog #63544.