Interferometric method for specific impulse determination

Autores
Toro Salazar, Cinthya Emma; Rinaldi, Carlos Alberto; Azcárate, María Laura
Año de publicación
2018
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
One of the main figures of merit in laser-ablative propulsion is the specific impulse, Isp, defined as the impulse per unit weight of fuel, and it is related to the exhaust velocity, ve, by the acceleration of gravity, Isp = ve/g. Being a key magnitude, Isp needs to be accurately determined. It is usually inferred from other measurable quantities: the impulse coupling coefficient, Cm, defined as the ratio of the target momentum produced to the incident laser pulse energy, and Q∗, the laser energy consumed per unit weight of ablated target material. Thus, Isp is calculated as Isp = CmQ∗/g. However, single pulse ablated mass leading to Q∗ is in the nanogram scale and cannot be directly measured by weighting the targets. So, mass loss measurements are performed by analyzing the volumes of the craters produced by a large number of laser pulses. These procedures lead to larger than desired uncertainties in the Isp values. On the other hand, more precise measurements of Isp can be carried out from the direct measurement of the exhaust velocity of the ejected particles by interferometric methods. In this work, a system based on a Nomarsky interferometer has been set up for the time-resolved diagnostic in the nanometric scale of laser ablation plumes. The performance of the implemented system was first validated by measuring the Isp produced by aluminum targets and solid propellants based on metal/salt mixtures. The Cm dependence on laser parameters and binary composition of these propellants have been determined in previous works with a torsion pendulum and a piezoelectric sensor. Once the interferometer performance is characterized, the Isp produced by solid propellants composed of metal (Zn) and metal oxides (ZnO) matrices doped with nanoparticles of different materials is determined and compared.
Fil: Toro Salazar, Cinthya Emma. Departamento de Investigaciones en Láseres y Aplicaciones, CITEDEF- UNIDEF (MINDEF-CONICET) ; Argentina
Fil: Rinaldi, Carlos Alberto. Departamento de Micro y Nanotecnología - Centro Atómico Constituyentes - Comisión Nacional de Energía Atómica. Fundación Argentina de Nanotecnologia ; Argentina
Fil: Azcárate, María Laura. Consejo Nacional de Investigaciones Científicas y Técnicas. Unidad de Investigación y Desarrollo Estratégico para la Defensa. Ministerio de Defensa. Unidad de Investigación y Desarrollo Estratégico para la Defensa; Argentina
Materia
INTERFEROMETER
LASER ABLATION
PROPELLANTS
SPECIFIC IMPULSE
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/94919
Acceder
id CONICETDig_580f7ca4a9f1c7b872a773ecca412e91
oai_identifier_str oai:ri.conicet.gov.ar:11336/94919
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Interferometric method for specific impulse determinationToro Salazar, Cinthya EmmaRinaldi, Carlos AlbertoAzcárate, María LauraINTERFEROMETERLASER ABLATIONPROPELLANTSSPECIFIC IMPULSEhttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1One of the main figures of merit in laser-ablative propulsion is the specific impulse, Isp, defined as the impulse per unit weight of fuel, and it is related to the exhaust velocity, ve, by the acceleration of gravity, Isp = ve/g. Being a key magnitude, Isp needs to be accurately determined. It is usually inferred from other measurable quantities: the impulse coupling coefficient, Cm, defined as the ratio of the target momentum produced to the incident laser pulse energy, and Q∗, the laser energy consumed per unit weight of ablated target material. Thus, Isp is calculated as Isp = CmQ∗/g. However, single pulse ablated mass leading to Q∗ is in the nanogram scale and cannot be directly measured by weighting the targets. So, mass loss measurements are performed by analyzing the volumes of the craters produced by a large number of laser pulses. These procedures lead to larger than desired uncertainties in the Isp values. On the other hand, more precise measurements of Isp can be carried out from the direct measurement of the exhaust velocity of the ejected particles by interferometric methods. In this work, a system based on a Nomarsky interferometer has been set up for the time-resolved diagnostic in the nanometric scale of laser ablation plumes. The performance of the implemented system was first validated by measuring the Isp produced by aluminum targets and solid propellants based on metal/salt mixtures. The Cm dependence on laser parameters and binary composition of these propellants have been determined in previous works with a torsion pendulum and a piezoelectric sensor. Once the interferometer performance is characterized, the Isp produced by solid propellants composed of metal (Zn) and metal oxides (ZnO) matrices doped with nanoparticles of different materials is determined and compared.Fil: Toro Salazar, Cinthya Emma. Departamento de Investigaciones en Láseres y Aplicaciones, CITEDEF- UNIDEF (MINDEF-CONICET) ; ArgentinaFil: Rinaldi, Carlos Alberto. Departamento de Micro y Nanotecnología - Centro Atómico Constituyentes - Comisión Nacional de Energía Atómica. Fundación Argentina de Nanotecnologia ; ArgentinaFil: Azcárate, María Laura. Consejo Nacional de Investigaciones Científicas y Técnicas. Unidad de Investigación y Desarrollo Estratégico para la Defensa. Ministerio de Defensa. Unidad de Investigación y Desarrollo Estratégico para la Defensa; ArgentinaSociety of Photo-Optical Instrumentation Engineers2018-09info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/94919Toro Salazar, Cinthya Emma; Rinaldi, Carlos Alberto; Azcárate, María Laura; Interferometric method for specific impulse determination; Society of Photo-Optical Instrumentation Engineers; Optical Engineering; 58; 1; 9-2018; 1-60091-3286CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1117/1.OE.58.1.011006info:eu-repo/semantics/altIdentifier/url/https://www.spiedigitallibrary.org/journals/Optical-Engineering/volume-58/issue-1/011006/Interferometric-method-for-specific-impulse-determination/10.1117/1.OE.58.1.011006.short?SSO=1info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T09:43:47Zoai:ri.conicet.gov.ar:11336/94919instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-03 09:43:47.559CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Interferometric method for specific impulse determination
title Interferometric method for specific impulse determination
spellingShingle Interferometric method for specific impulse determination
Toro Salazar, Cinthya Emma
INTERFEROMETER
LASER ABLATION
PROPELLANTS
SPECIFIC IMPULSE
title_short Interferometric method for specific impulse determination
title_full Interferometric method for specific impulse determination
title_fullStr Interferometric method for specific impulse determination
title_full_unstemmed Interferometric method for specific impulse determination
title_sort Interferometric method for specific impulse determination
dc.creator.none.fl_str_mv Toro Salazar, Cinthya Emma
Rinaldi, Carlos Alberto
Azcárate, María Laura
author Toro Salazar, Cinthya Emma
author_facet Toro Salazar, Cinthya Emma
Rinaldi, Carlos Alberto
Azcárate, María Laura
author_role author
author2 Rinaldi, Carlos Alberto
Azcárate, María Laura
author2_role author
author
dc.subject.none.fl_str_mv INTERFEROMETER
LASER ABLATION
PROPELLANTS
SPECIFIC IMPULSE
topic INTERFEROMETER
LASER ABLATION
PROPELLANTS
SPECIFIC IMPULSE
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv One of the main figures of merit in laser-ablative propulsion is the specific impulse, Isp, defined as the impulse per unit weight of fuel, and it is related to the exhaust velocity, ve, by the acceleration of gravity, Isp = ve/g. Being a key magnitude, Isp needs to be accurately determined. It is usually inferred from other measurable quantities: the impulse coupling coefficient, Cm, defined as the ratio of the target momentum produced to the incident laser pulse energy, and Q∗, the laser energy consumed per unit weight of ablated target material. Thus, Isp is calculated as Isp = CmQ∗/g. However, single pulse ablated mass leading to Q∗ is in the nanogram scale and cannot be directly measured by weighting the targets. So, mass loss measurements are performed by analyzing the volumes of the craters produced by a large number of laser pulses. These procedures lead to larger than desired uncertainties in the Isp values. On the other hand, more precise measurements of Isp can be carried out from the direct measurement of the exhaust velocity of the ejected particles by interferometric methods. In this work, a system based on a Nomarsky interferometer has been set up for the time-resolved diagnostic in the nanometric scale of laser ablation plumes. The performance of the implemented system was first validated by measuring the Isp produced by aluminum targets and solid propellants based on metal/salt mixtures. The Cm dependence on laser parameters and binary composition of these propellants have been determined in previous works with a torsion pendulum and a piezoelectric sensor. Once the interferometer performance is characterized, the Isp produced by solid propellants composed of metal (Zn) and metal oxides (ZnO) matrices doped with nanoparticles of different materials is determined and compared.
Fil: Toro Salazar, Cinthya Emma. Departamento de Investigaciones en Láseres y Aplicaciones, CITEDEF- UNIDEF (MINDEF-CONICET) ; Argentina
Fil: Rinaldi, Carlos Alberto. Departamento de Micro y Nanotecnología - Centro Atómico Constituyentes - Comisión Nacional de Energía Atómica. Fundación Argentina de Nanotecnologia ; Argentina
Fil: Azcárate, María Laura. Consejo Nacional de Investigaciones Científicas y Técnicas. Unidad de Investigación y Desarrollo Estratégico para la Defensa. Ministerio de Defensa. Unidad de Investigación y Desarrollo Estratégico para la Defensa; Argentina
description One of the main figures of merit in laser-ablative propulsion is the specific impulse, Isp, defined as the impulse per unit weight of fuel, and it is related to the exhaust velocity, ve, by the acceleration of gravity, Isp = ve/g. Being a key magnitude, Isp needs to be accurately determined. It is usually inferred from other measurable quantities: the impulse coupling coefficient, Cm, defined as the ratio of the target momentum produced to the incident laser pulse energy, and Q∗, the laser energy consumed per unit weight of ablated target material. Thus, Isp is calculated as Isp = CmQ∗/g. However, single pulse ablated mass leading to Q∗ is in the nanogram scale and cannot be directly measured by weighting the targets. So, mass loss measurements are performed by analyzing the volumes of the craters produced by a large number of laser pulses. These procedures lead to larger than desired uncertainties in the Isp values. On the other hand, more precise measurements of Isp can be carried out from the direct measurement of the exhaust velocity of the ejected particles by interferometric methods. In this work, a system based on a Nomarsky interferometer has been set up for the time-resolved diagnostic in the nanometric scale of laser ablation plumes. The performance of the implemented system was first validated by measuring the Isp produced by aluminum targets and solid propellants based on metal/salt mixtures. The Cm dependence on laser parameters and binary composition of these propellants have been determined in previous works with a torsion pendulum and a piezoelectric sensor. Once the interferometer performance is characterized, the Isp produced by solid propellants composed of metal (Zn) and metal oxides (ZnO) matrices doped with nanoparticles of different materials is determined and compared.
publishDate 2018
dc.date.none.fl_str_mv 2018-09
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/94919
Toro Salazar, Cinthya Emma; Rinaldi, Carlos Alberto; Azcárate, María Laura; Interferometric method for specific impulse determination; Society of Photo-Optical Instrumentation Engineers; Optical Engineering; 58; 1; 9-2018; 1-6
0091-3286
CONICET Digital
CONICET
url http://hdl.handle.net/11336/94919
identifier_str_mv Toro Salazar, Cinthya Emma; Rinaldi, Carlos Alberto; Azcárate, María Laura; Interferometric method for specific impulse determination; Society of Photo-Optical Instrumentation Engineers; Optical Engineering; 58; 1; 9-2018; 1-6
0091-3286
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1117/1.OE.58.1.011006
info:eu-repo/semantics/altIdentifier/url/https://www.spiedigitallibrary.org/journals/Optical-Engineering/volume-58/issue-1/011006/Interferometric-method-for-specific-impulse-determination/10.1117/1.OE.58.1.011006.short?SSO=1
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Society of Photo-Optical Instrumentation Engineers
publisher.none.fl_str_mv Society of Photo-Optical Instrumentation Engineers
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
_version_ 1842268622769094656
score 13.13397

Publicaciones similares