Mechanical characterisation of the TorPeDO: a low frequency gravitational force sensor
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McManus, David; Forsyth, Perry; Yap, Min Jet; Ward, Robert; Shaddock, Daniel; McClelland, David; Slagmolen, Bram
Description
Newtonian noise is likely to be a future challenge at low frequencies for Advanced LIGO and other second generation gravitational wave detectors. We present the TorPeDO system: a dual torsion pendulum sensor designed to measure local gravitational forces to high precision. Gravitational forces induce a differential rotation between the two torsion beams, which is measured with an optical read-out. Both torsion pendulums have a common suspension point, tunable centre of mass, and resonant...[Show more]
dc.contributor.author | McManus, David | |
---|---|---|
dc.contributor.author | Forsyth, Perry | |
dc.contributor.author | Yap, Min Jet | |
dc.contributor.author | Ward, Robert | |
dc.contributor.author | Shaddock, Daniel | |
dc.contributor.author | McClelland, David | |
dc.contributor.author | Slagmolen, Bram | |
dc.date.accessioned | 2021-08-06T00:14:17Z | |
dc.identifier.issn | 0264-9381 | |
dc.identifier.uri | http://hdl.handle.net/1885/243237 | |
dc.description.abstract | Newtonian noise is likely to be a future challenge at low frequencies for Advanced LIGO and other second generation gravitational wave detectors. We present the TorPeDO system: a dual torsion pendulum sensor designed to measure local gravitational forces to high precision. Gravitational forces induce a differential rotation between the two torsion beams, which is measured with an optical read-out. Both torsion pendulums have a common suspension point, tunable centre of mass, and resonant frequency. This produces a high level of mechanical common mode noise cancellation. We report on a controls prototype of the TorPeDO system, presenting the frequency response and tuning range of both pendulums. A noise budget and mechanical cross-coupling model for this system are also presented. We demonstrate frequency tuning of the two torsion pendulums to a difference of 4.3 μHz. | |
dc.description.sponsorship | BS, RW and DM would like to acknowledge support from the Australian Research Council grant FT130100329 and DP160100760. This paper has been assigned LIGO document number P1700004. | |
dc.format.mimetype | application/pdf | |
dc.language.iso | en_AU | |
dc.publisher | Institute of Physics Publishing | |
dc.rights | © 2017 IOP Publishing Ltd | |
dc.source | Classical and Quantum Gravity | |
dc.subject | gravitational waves | |
dc.subject | newtonian noise | |
dc.subject | torsion pendulum | |
dc.subject | optical sensing | |
dc.subject | gravimeter | |
dc.title | Mechanical characterisation of the TorPeDO: a low frequency gravitational force sensor | |
dc.type | Journal article | |
local.description.notes | Imported from ARIES | |
local.identifier.citationvolume | 34 | |
dc.date.issued | 2017 | |
local.identifier.absfor | 010505 - Mathematical Aspects of Quantum and Conformal Field Theory, Quantum Gravity and String Theory | |
local.identifier.ariespublication | a383154xPUB7067 | |
local.publisher.url | http://iopscience.iop.org/0264-9381 | |
local.type.status | Published Version | |
local.contributor.affiliation | McManus, David, College of Science, ANU | |
local.contributor.affiliation | Forsyth, Perry, College of Science, ANU | |
local.contributor.affiliation | Yap, Min Jet, College of Science, ANU | |
local.contributor.affiliation | Ward, Robert, College of Science, ANU | |
local.contributor.affiliation | Shaddock, Daniel, College of Science, ANU | |
local.contributor.affiliation | McClelland, David, College of Science, ANU | |
local.contributor.affiliation | Slagmolen, Bram, College of Science, ANU | |
local.description.embargo | 2099-12-31 | |
dc.relation | http://purl.org/au-research/grants/arc/FT130100329 | |
dc.relation | http://purl.org/au-research/grants/arc/DP160100760 | |
local.bibliographicCitation.issue | 13 | |
local.bibliographicCitation.startpage | 1 | |
local.bibliographicCitation.lastpage | 12 | |
local.identifier.doi | 10.1088/1361-6382/aa7103 | |
dc.date.updated | 2020-11-23T10:48:31Z | |
local.identifier.scopusID | 2-s2.0-85021075145 | |
local.identifier.thomsonID | 000403049400002 | |
Collections | ANU Research Publications |
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