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Record W2163073984 · doi:10.1109/ccece.2003.1226404

An optical MEMS sensor system

2004· article· en· W2163073984 on OpenAlexafffund
Yu Fan, Mojtaba Kahrizi

Bibliographic record

Venuenot available
Typearticle
Languageen
FieldEngineering
TopicAdvanced MEMS and NEMS Technologies
Canadian institutionsConcordia University
FundersCMC Microsystems
KeywordsMicroelectromechanical systemsOptical fiberMaterials scienceOptoelectronicsFiber optic sensorOpticsOptical time-domain reflectometerOptical powerFabricationInterference (communication)Fiber optic splitterPhysicsLaserElectrical engineeringEngineering

Abstract

fetched live from OpenAlex

In recent years, the optical application of MEMS (MOEMS, micro-opto-electro-mechanical-system) is widely studied, because of its intrinsic benefits [P. Rai-Choudhury, 2000][Hiroyuki Fujita et al., 2000]. One of most striking development is MOEMS sensors. The feature size and motion of MEMS devices are in the range of sub-micrometer, which make MEMS an effective mechanism to realize optical interference, hence a sensor system can be achieved by monitoring these micro-interferometers. This work reports a whole process of modeling, fabrication, and measurement of an optical MEMS sensor system. The sensor tip is designed as a Fabry-Perot cavity etched on the silicon chip, light is incident from the optical fiber, and simultaneously the reflected optical signal from the cavity is monitored. When certain ambient change forced on the tip, the membrane of the cavity vibrates deviating from resonance; consequently the reflected light is changed by means of central wavelength shift, and power degradation. CMOS modeling tools are used, to design the tip prototype and the fabrication process. Single mode fiber links between the tip and source/detector, the light source is 1550 nm broadband. Both OTDR and OSA are used to precisely decode the magnitude of ambient change. Next, the analogous sensor tips are reproduced and arrayed to realize a sensor network, thus a momentary impact will be positioned as well as quantified through spatial division multiplex [K.T.V Grattan et al., 2000]. Upon the performances, MOEMS sensor is compared with other possible sensing mechanisms, with regard to the physical features, sensing results, fabrication easiness, and application limits.

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

How this classification was reachedexpand

Full frame machine prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.000
Version: metacan-v3-hybrid-931329e0061cValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Bench or experimental · Consensus signal: Bench or experimental
GenreCandidate signal: Empirical · Consensus signal: none
Teacher disagreement score0.009
Threshold uncertainty score0.030

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0010.000
Meta-epidemiology (broad)0.0010.000
Bibliometrics0.0010.001
Science and technology studies0.0010.000
Scholarly communication0.0010.001
Open science0.0010.001
Research integrity0.0010.001
Insufficient payload (model declined to judge)0.0090.006

Machine scores (provisional)

The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.

Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.

Opus teacher head0.007
GPT teacher head0.216
Teacher spread0.209 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it

Classification

machine, unvalidated

Machine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.

The models applied no category: nothing in the taxonomy fit this work.
Study designBench or experimental
Domainnot available
GenreEmpirical

How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".

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Citations1
Published2004
Admission routes2
Has abstractyes

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