Basic lecture for students 2: GAS filters and LVDTs

Document #:

JGW-G1808697-v1

Document type:

G

Submitted by:

Enzo Tapia

Updated by:

Enzo Tapia

Document Created:

13 Aug 2018, 15:37

Contents Revised:

13 Aug 2018, 15:37

Metadata Revised:

16 Aug 2018, 16:16

Abstract:

Detailed explanation about GAS (Geometric Anti Spring) with different models and analysis of linearized model. Principles of LVDT (Linear Variable Differential Transformer) and Voice-coil actuators. Use of digital system tools to measure and move the position of the keystone of GAS filters.

Files in Document:

• Lecture 2: GAS filters and LVDTs (KAGRA_Lecture2_GAS_filter_and_LVDT.pdf, 2.0 MB)

Topics:

• Management:Seminar
• Activity:KAGRA
• Detector:Suspensions

Authors:

• Enzo Tapia

Keywords:

GAS LVDT Voice-coil actuator

Approved for use in external presentations:

Unapproved