002842870 001__ 2842870
002842870 003__ SzGeCERN
002842870 005__ 20230328154332.0
002842870 0248_ $$aoai:cds.cern.ch:2842870$$pcerncds:FULLTEXT$$pcerncds:CERN:FULLTEXT$$pcerncds:CERN
002842870 0247_ $$2DOI$$9IEEE$$a10.1109/JSEN.2022.3210369
002842870 035__ $$9https://inspirehep.net/api/oai2d$$aoai:inspirehep.net:2605408$$d2022-12-01T17:34:40Z$$h2022-12-02T05:00:05Z$$mmarcxml
002842870 035__ $$9Inspire$$a2605408
002842870 041__ $$aeng
002842870 100__ $$aAliana Cervera, Gerard$$jORCID:0000-0001-8111-3821$$uCERN$$uEcole Polytechnique, Lausanne$$vÉcole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland
002842870 245__ $$9IEEE$$aAn Inertial Uni-Axial Interferometer-Based Accelerometer for Harsh Environments
002842870 260__ $$c2022
002842870 300__ $$a10 p
002842870 520__ $$9IEEE$$aFor high-impact devices, subsequent vibrations have as much influence on the deterioration of the mechanical structure as the impact itself. To mitigate the consequences of both impacts and resulting vibrations, it is crucial to accurately understand the peak acceleration and vibration frequencies that originate in the structure. In this article, a radiation tolerant opto-mechanical sensor based on an absolute measurement inertial accelerometer is presented. This method of measurement is chosen due to the viability of placing the readout electronics far from the highly radioactive environment that the sensor may be installed in. The designed accelerometer consists of a fixed aluminum frame with a built-in membrane that acts as a leaf spring. In the same membrane, a retro-reflector is attached which acts as a seismic mass. The retro-reflector reflects the light beam coming from the collimator lens placed on the frame. To prove its viability, the device has been tested under different conditions. First, the device is calibrated and validated using a high-frequency exciter. Second, a high-acceleration testbench is used to compare its output signal with a commercial accelerometer and verify its proper operation as well as its expected lifetime. The experimental results showed an average sensitivity of
${9} \times {10}^{-{4}}$
g/pm with reading measurements of up to 5000 g and a working bandwidth located between 50 and 800 Hz.
002842870 520__ $$9submitter$$aFor high-impact devices, subsequent vibrations
have as much influence on the deterioration of the mechanical
structure as the impact itself. To mitigate the consequences
of both impacts and resulting vibrations, it is crucial to
accurately understand the peak acceleration and vibration
frequencies that originate in the structure. In this article,
a radiation tolerant opto-mechanical sensor based on an
absolute measurement inertial accelerometer is presented.
This method of measurement is chosen due to the viability of
placing the readout electronics far from the highly radioactive
environment that the sensor may be installed in. The designed
accelerometer consists of a fixed aluminum frame with a
built-in membrane that acts as a leaf spring. In the same membrane, a retro-reflector is attached which acts as a seismic
mass. The retro-reflector reflects the light beam coming from
the collimator lens placed on the frame. To prove its viability,
the device has been tested under different conditions. First,
the device is calibrated and validated using a high-frequency exciter. Second, a high-acceleration testbench is used to
compare its output signal with a commercial accelerometer and verify its proper operation as well as its expected lifetime.
The experimental results showed an average sensitivity of 9 × 10$^{-4}$ g/pm with reading measurements of up to 5000 g and
a working bandwidth located between 50 and 800 Hz.
002842870 540__ $$3publication$$aCC-BY-4.0$$fCERN-RP: IEEE$$uhttps://creativecommons.org/licenses/by/4.0/
002842870 6531_ $$9author$$aSensors
002842870 6531_ $$9author$$aAccelerometers
002842870 6531_ $$9author$$aOptical sensors
002842870 6531_ $$9author$$aOptical interferometry
002842870 6531_ $$9author$$aVibrations
002842870 6531_ $$9author$$aTemperature measurement
002842870 65017 $$2INSPIRE$$aEngineering
002842870 6531_ $$9author$$aLaser beams
002842870 65017 $$2INSPIRE$$aHealth Physics and Radiation Effects
002842870 6531_ $$9author$$aAccelerometer
002842870 6531_ $$9author$$abandwidth
002842870 6531_ $$9author$$afinite element modeling
002842870 6531_ $$9author$$ahigh impact
002842870 6531_ $$9author$$ainertial sensor
002842870 6531_ $$9author$$aradioactive hazard
002842870 690C_ $$aARTICLE
002842870 690C_ $$aCERN
002842870 700__ $$aSolis Paiva, Santiago Andres$$uCERN
002842870 700__ $$aSerrano Galvez, Pablo$$jORCID:0000-0001-5289-6513$$uCERN$$vBobst, Mex, Switzerland
002842870 700__ $$aSola Merino, Jorge$$uCERN$$vAdvantics, Saint-Genis-Pouilly, France
002842870 700__ $$aButcher, Mark$$jORCID:0000-0002-2035-002X$$uCERN$$vDistalmotion, Epalinges, Switzerland
002842870 700__ $$aMatheson, Eloise$$jORCID:0000-0002-1294-2076$$uCERN
002842870 700__ $$adi Castro, Mario$$jORCID:0000-0002-2513-967X$$uCERN
002842870 773__ $$c21540-21549$$n22$$pIEEE Sensors J.$$v22$$y2022
002842870 8564_ $$82411355$$s4844010$$uhttps://cds.cern.ch/record/2842870/files/An_Inertial_Uni-Axial_Interferometer-Based_Accelerometer_for_Harsh_Environments.pdf$$yFulltext
002842870 960__ $$a13
002842870 980__ $$aARTICLE