Annular End Reaction Mass (AERM)

Document #:

LIGO-D1500163-v4

Document type:

D - Drawings

Abstract:

Redesigned End Reaction Mass (ERM) with Dia. 200 mm hole in center

Files in Document:

• D1500163-v4.PDF (166.4 kB)

ICS/JIRA Record:

• ICS_LINK

Topics:

• Basic R&D
• System Engineering

Authors:

• Eduardo Sanchez
• GariLynn Billingsley

Notes and Changes:

Revised as follows:

General notes:

Note no. 3 was:

...ALL SURFACES (INCLUDING INSIDE BARREL), EDGES AND CHAMFER....

Note no. 5 was:

APPLY ESD GOLD COATING PER E0900138.

Note no. 7 was:

MAT'L: 648339.386 (SF2) GLASS.
DENSITY:3.86g/cm3

Zone E/3: Identified Inner barrel surface with 'S4'

Zone B/7: Thickness tolerance was +/-.25

Related Documents:

• LIGO-E0900138: End Reaction Mass Electro Static Drive gold coating specification
• LIGO-D0900949: End Reaction Mass ESD Coating Face Pattern
• LIGO-D0900958: GOLD COATING PATTERN END REACTION MASS BARREL

Referenced by:

• LIGO-E1400259: aLIGO COC Design