Tests with single two-wire pendulum
- Document #:
- LIGO-T080033-v1
- Document type:
- T - Technical notes
Other Versions:
| LIGO-T080033-x0
11 Feb 2009, 23:57 |
- Abstract:
- Using a single two-wire pendulum, investigated whether a permanent “set” caused by an enforced pitch is observed, whether the effect was proportional, and whether an increase in “d” distance would decrease the permanent “set” for a given input displacement. We could induce a permanent tilt of a single suspended mass hanging from two wires with no springs involved. The size of the effect was comensurate with the effects seen at LASTI. By allowing the system to ring down from a larger tilt, the permanent tilt could be removed.
- Files in Document:
-
- T080033-01-K.pdf (87.8 kB)
- Topics:
- Authors:
- Notes and Changes:
- This is one document of several exploring hysteresis and alignment issues in the quad pendulum. See related documents for the other documents in this study. T080044 is part 2 of this particular study.
- Related Documents:
- LIGO-T080028-v1: Lateral blade movement in clamps Experiment
- LIGO-T080030-v1: TILT TESTS ON RAL NOISE PROTOTYPE
- LIGO-T080033-v1: Tests with single two-wire pendulum
- LIGO-T080044-v1: Tests with single two-wire pendulum – part two
- LIGO-T080056-v1: Application of hysteresis model to quad SUS
- LIGO-T080059-v1: Tilt tests on the RAL noise prototype – part 2
- Referenced by:
- LIGO-T080028-v1: Lateral blade movement in clamps Experiment
- LIGO-T080030-v1: TILT TESTS ON RAL NOISE PROTOTYPE
- LIGO-T080033-v1: Tests with single two-wire pendulum
- LIGO-T080044-v1: Tests with single two-wire pendulum – part two
- LIGO-T080059-v1: Tilt tests on the RAL noise prototype – part 2
- LIGO-T080056-v1: Application of hysteresis model to quad SUS
- LIGO-T0900103-v2: Hysteresis and pitch mode Q in the quad noise prototype and possible implications for thermal noise