Aero-optical aberration measuring method based on NPLS and its application

Abstract The existing methods for measuring aero-optical aberration suffer from several problems, such as low spatiotemporal resolution, sensitivity to environment, and integral effects. A new method for measuring aero-optical aberration of supersonic flow is proposed. Based on the self-developed me...
Ausführliche Beschreibung

Gespeichert in:

Autor*in:	Yi, ShiHe [verfasserIn] Tian, LiFeng [verfasserIn] Zhao, YuXin [verfasserIn] He, Lin [verfasserIn] Chen, Zhi [verfasserIn]

Format:	E-Artikel
Sprache:	Englisch

Erschienen:	2010

Schlagwörter:	NPLS supersonic flow field aero-optics

Übergeordnetes Werk:	Enthalten in: Chinese science bulletin - Beijing, China : Chinese Acad. of Sciences, 1997, 55(2010), 31 vom: Nov., Seite 3545-3549
Übergeordnetes Werk:	volume:55 ; year:2010 ; number:31 ; month:11 ; pages:3545-3549

Links:	Volltext

DOI / URN:	10.1007/s11434-010-4104-5

Katalog-ID:	SPR019635966

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520			\|a Abstract The existing methods for measuring aero-optical aberration suffer from several problems, such as low spatiotemporal resolution, sensitivity to environment, and integral effects. A new method for measuring aero-optical aberration of supersonic flow is proposed. Based on the self-developed measuring method of supersonic density field, the wavefront aberration induced by a cross-section of supersonic flow field could be measured by ray-tracing. Compared with other methods, the present one has three significant innovations: (1) high spatiotemporal resolution. Its time resolution is 6 ns, and the spatial resolution can reach up to micrometers; (2) it can avoid the integral effects and study the wavefront aberration induced by the flow field of interest locally; (3) it can also avoid the influence from the test section wall boundary layers and environmental disturbances. The present method was applied to supersonic flow around an optical bow cap. The results of high spatiotemporal resolution reveal fine wavefront structures, and show that shock waves, expansion waves and turbulent boundary layers have different impacts on the wavefront aberration.
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allfields	10.1007/s11434-010-4104-5 doi (DE-627)SPR019635966 (SPR)s11434-010-4104-5-e DE-627 ger DE-627 rakwb eng 500 ASE 30.00 bkl Yi, ShiHe verfasserin aut Aero-optical aberration measuring method based on NPLS and its application 2010 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Abstract The existing methods for measuring aero-optical aberration suffer from several problems, such as low spatiotemporal resolution, sensitivity to environment, and integral effects. A new method for measuring aero-optical aberration of supersonic flow is proposed. Based on the self-developed measuring method of supersonic density field, the wavefront aberration induced by a cross-section of supersonic flow field could be measured by ray-tracing. Compared with other methods, the present one has three significant innovations: (1) high spatiotemporal resolution. Its time resolution is 6 ns, and the spatial resolution can reach up to micrometers; (2) it can avoid the integral effects and study the wavefront aberration induced by the flow field of interest locally; (3) it can also avoid the influence from the test section wall boundary layers and environmental disturbances. The present method was applied to supersonic flow around an optical bow cap. The results of high spatiotemporal resolution reveal fine wavefront structures, and show that shock waves, expansion waves and turbulent boundary layers have different impacts on the wavefront aberration. NPLS (dpeaa)DE-He213 supersonic flow field (dpeaa)DE-He213 aero-optics (dpeaa)DE-He213 Tian, LiFeng verfasserin aut Zhao, YuXin verfasserin aut He, Lin verfasserin aut Chen, Zhi verfasserin aut Enthalten in Chinese science bulletin Beijing, China : Chinese Acad. of Sciences, 1997 55(2010), 31 vom: Nov., Seite 3545-3549 (DE-627)341897809 (DE-600)2069521-4 1861-9541 nnns volume:55 year:2010 number:31 month:11 pages:3545-3549 https://dx.doi.org/10.1007/s11434-010-4104-5 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_20 GBV_ILN_40 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_110 GBV_ILN_120 GBV_ILN_161 GBV_ILN_266 GBV_ILN_285 GBV_ILN_293 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2005 GBV_ILN_2007 GBV_ILN_2009 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2018 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2055 GBV_ILN_2059 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2070 GBV_ILN_2086 GBV_ILN_2106 GBV_ILN_2108 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2116 GBV_ILN_2118 GBV_ILN_2119 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4313 GBV_ILN_4328 GBV_ILN_4333 30.00 ASE AR 55 2010 31 11 3545-3549
spelling	10.1007/s11434-010-4104-5 doi (DE-627)SPR019635966 (SPR)s11434-010-4104-5-e DE-627 ger DE-627 rakwb eng 500 ASE 30.00 bkl Yi, ShiHe verfasserin aut Aero-optical aberration measuring method based on NPLS and its application 2010 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Abstract The existing methods for measuring aero-optical aberration suffer from several problems, such as low spatiotemporal resolution, sensitivity to environment, and integral effects. A new method for measuring aero-optical aberration of supersonic flow is proposed. Based on the self-developed measuring method of supersonic density field, the wavefront aberration induced by a cross-section of supersonic flow field could be measured by ray-tracing. Compared with other methods, the present one has three significant innovations: (1) high spatiotemporal resolution. Its time resolution is 6 ns, and the spatial resolution can reach up to micrometers; (2) it can avoid the integral effects and study the wavefront aberration induced by the flow field of interest locally; (3) it can also avoid the influence from the test section wall boundary layers and environmental disturbances. The present method was applied to supersonic flow around an optical bow cap. The results of high spatiotemporal resolution reveal fine wavefront structures, and show that shock waves, expansion waves and turbulent boundary layers have different impacts on the wavefront aberration. NPLS (dpeaa)DE-He213 supersonic flow field (dpeaa)DE-He213 aero-optics (dpeaa)DE-He213 Tian, LiFeng verfasserin aut Zhao, YuXin verfasserin aut He, Lin verfasserin aut Chen, Zhi verfasserin aut Enthalten in Chinese science bulletin Beijing, China : Chinese Acad. of Sciences, 1997 55(2010), 31 vom: Nov., Seite 3545-3549 (DE-627)341897809 (DE-600)2069521-4 1861-9541 nnns volume:55 year:2010 number:31 month:11 pages:3545-3549 https://dx.doi.org/10.1007/s11434-010-4104-5 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_20 GBV_ILN_40 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_110 GBV_ILN_120 GBV_ILN_161 GBV_ILN_266 GBV_ILN_285 GBV_ILN_293 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2005 GBV_ILN_2007 GBV_ILN_2009 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2018 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2055 GBV_ILN_2059 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2070 GBV_ILN_2086 GBV_ILN_2106 GBV_ILN_2108 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2116 GBV_ILN_2118 GBV_ILN_2119 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4313 GBV_ILN_4328 GBV_ILN_4333 30.00 ASE AR 55 2010 31 11 3545-3549
allfields_unstemmed	10.1007/s11434-010-4104-5 doi (DE-627)SPR019635966 (SPR)s11434-010-4104-5-e DE-627 ger DE-627 rakwb eng 500 ASE 30.00 bkl Yi, ShiHe verfasserin aut Aero-optical aberration measuring method based on NPLS and its application 2010 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Abstract The existing methods for measuring aero-optical aberration suffer from several problems, such as low spatiotemporal resolution, sensitivity to environment, and integral effects. A new method for measuring aero-optical aberration of supersonic flow is proposed. Based on the self-developed measuring method of supersonic density field, the wavefront aberration induced by a cross-section of supersonic flow field could be measured by ray-tracing. Compared with other methods, the present one has three significant innovations: (1) high spatiotemporal resolution. Its time resolution is 6 ns, and the spatial resolution can reach up to micrometers; (2) it can avoid the integral effects and study the wavefront aberration induced by the flow field of interest locally; (3) it can also avoid the influence from the test section wall boundary layers and environmental disturbances. The present method was applied to supersonic flow around an optical bow cap. The results of high spatiotemporal resolution reveal fine wavefront structures, and show that shock waves, expansion waves and turbulent boundary layers have different impacts on the wavefront aberration. NPLS (dpeaa)DE-He213 supersonic flow field (dpeaa)DE-He213 aero-optics (dpeaa)DE-He213 Tian, LiFeng verfasserin aut Zhao, YuXin verfasserin aut He, Lin verfasserin aut Chen, Zhi verfasserin aut Enthalten in Chinese science bulletin Beijing, China : Chinese Acad. of Sciences, 1997 55(2010), 31 vom: Nov., Seite 3545-3549 (DE-627)341897809 (DE-600)2069521-4 1861-9541 nnns volume:55 year:2010 number:31 month:11 pages:3545-3549 https://dx.doi.org/10.1007/s11434-010-4104-5 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_20 GBV_ILN_40 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_110 GBV_ILN_120 GBV_ILN_161 GBV_ILN_266 GBV_ILN_285 GBV_ILN_293 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2005 GBV_ILN_2007 GBV_ILN_2009 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2018 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2055 GBV_ILN_2059 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2070 GBV_ILN_2086 GBV_ILN_2106 GBV_ILN_2108 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2116 GBV_ILN_2118 GBV_ILN_2119 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4313 GBV_ILN_4328 GBV_ILN_4333 30.00 ASE AR 55 2010 31 11 3545-3549
allfieldsGer	10.1007/s11434-010-4104-5 doi (DE-627)SPR019635966 (SPR)s11434-010-4104-5-e DE-627 ger DE-627 rakwb eng 500 ASE 30.00 bkl Yi, ShiHe verfasserin aut Aero-optical aberration measuring method based on NPLS and its application 2010 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Abstract The existing methods for measuring aero-optical aberration suffer from several problems, such as low spatiotemporal resolution, sensitivity to environment, and integral effects. A new method for measuring aero-optical aberration of supersonic flow is proposed. Based on the self-developed measuring method of supersonic density field, the wavefront aberration induced by a cross-section of supersonic flow field could be measured by ray-tracing. Compared with other methods, the present one has three significant innovations: (1) high spatiotemporal resolution. Its time resolution is 6 ns, and the spatial resolution can reach up to micrometers; (2) it can avoid the integral effects and study the wavefront aberration induced by the flow field of interest locally; (3) it can also avoid the influence from the test section wall boundary layers and environmental disturbances. The present method was applied to supersonic flow around an optical bow cap. The results of high spatiotemporal resolution reveal fine wavefront structures, and show that shock waves, expansion waves and turbulent boundary layers have different impacts on the wavefront aberration. NPLS (dpeaa)DE-He213 supersonic flow field (dpeaa)DE-He213 aero-optics (dpeaa)DE-He213 Tian, LiFeng verfasserin aut Zhao, YuXin verfasserin aut He, Lin verfasserin aut Chen, Zhi verfasserin aut Enthalten in Chinese science bulletin Beijing, China : Chinese Acad. of Sciences, 1997 55(2010), 31 vom: Nov., Seite 3545-3549 (DE-627)341897809 (DE-600)2069521-4 1861-9541 nnns volume:55 year:2010 number:31 month:11 pages:3545-3549 https://dx.doi.org/10.1007/s11434-010-4104-5 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_20 GBV_ILN_40 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_110 GBV_ILN_120 GBV_ILN_161 GBV_ILN_266 GBV_ILN_285 GBV_ILN_293 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2005 GBV_ILN_2007 GBV_ILN_2009 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2018 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2055 GBV_ILN_2059 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2070 GBV_ILN_2086 GBV_ILN_2106 GBV_ILN_2108 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2116 GBV_ILN_2118 GBV_ILN_2119 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4313 GBV_ILN_4328 GBV_ILN_4333 30.00 ASE AR 55 2010 31 11 3545-3549
allfieldsSound	10.1007/s11434-010-4104-5 doi (DE-627)SPR019635966 (SPR)s11434-010-4104-5-e DE-627 ger DE-627 rakwb eng 500 ASE 30.00 bkl Yi, ShiHe verfasserin aut Aero-optical aberration measuring method based on NPLS and its application 2010 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Abstract The existing methods for measuring aero-optical aberration suffer from several problems, such as low spatiotemporal resolution, sensitivity to environment, and integral effects. A new method for measuring aero-optical aberration of supersonic flow is proposed. Based on the self-developed measuring method of supersonic density field, the wavefront aberration induced by a cross-section of supersonic flow field could be measured by ray-tracing. Compared with other methods, the present one has three significant innovations: (1) high spatiotemporal resolution. Its time resolution is 6 ns, and the spatial resolution can reach up to micrometers; (2) it can avoid the integral effects and study the wavefront aberration induced by the flow field of interest locally; (3) it can also avoid the influence from the test section wall boundary layers and environmental disturbances. The present method was applied to supersonic flow around an optical bow cap. The results of high spatiotemporal resolution reveal fine wavefront structures, and show that shock waves, expansion waves and turbulent boundary layers have different impacts on the wavefront aberration. NPLS (dpeaa)DE-He213 supersonic flow field (dpeaa)DE-He213 aero-optics (dpeaa)DE-He213 Tian, LiFeng verfasserin aut Zhao, YuXin verfasserin aut He, Lin verfasserin aut Chen, Zhi verfasserin aut Enthalten in Chinese science bulletin Beijing, China : Chinese Acad. of Sciences, 1997 55(2010), 31 vom: Nov., Seite 3545-3549 (DE-627)341897809 (DE-600)2069521-4 1861-9541 nnns volume:55 year:2010 number:31 month:11 pages:3545-3549 https://dx.doi.org/10.1007/s11434-010-4104-5 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_20 GBV_ILN_40 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_110 GBV_ILN_120 GBV_ILN_161 GBV_ILN_266 GBV_ILN_285 GBV_ILN_293 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2005 GBV_ILN_2007 GBV_ILN_2009 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2018 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2055 GBV_ILN_2059 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2070 GBV_ILN_2086 GBV_ILN_2106 GBV_ILN_2108 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2116 GBV_ILN_2118 GBV_ILN_2119 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4313 GBV_ILN_4328 GBV_ILN_4333 30.00 ASE AR 55 2010 31 11 3545-3549
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source	Enthalten in Chinese science bulletin 55(2010), 31 vom: Nov., Seite 3545-3549 volume:55 year:2010 number:31 month:11 pages:3545-3549
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author	Yi, ShiHe
spellingShingle	Yi, ShiHe ddc 500 bkl 30.00 misc NPLS misc supersonic flow field misc aero-optics Aero-optical aberration measuring method based on NPLS and its application
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title	Aero-optical aberration measuring method based on NPLS and its application
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title_full	Aero-optical aberration measuring method based on NPLS and its application
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author_browse	Yi, ShiHe Tian, LiFeng Zhao, YuXin He, Lin Chen, Zhi
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title_sort	aero-optical aberration measuring method based on npls and its application
title_auth	Aero-optical aberration measuring method based on NPLS and its application
abstract	Abstract The existing methods for measuring aero-optical aberration suffer from several problems, such as low spatiotemporal resolution, sensitivity to environment, and integral effects. A new method for measuring aero-optical aberration of supersonic flow is proposed. Based on the self-developed measuring method of supersonic density field, the wavefront aberration induced by a cross-section of supersonic flow field could be measured by ray-tracing. Compared with other methods, the present one has three significant innovations: (1) high spatiotemporal resolution. Its time resolution is 6 ns, and the spatial resolution can reach up to micrometers; (2) it can avoid the integral effects and study the wavefront aberration induced by the flow field of interest locally; (3) it can also avoid the influence from the test section wall boundary layers and environmental disturbances. The present method was applied to supersonic flow around an optical bow cap. The results of high spatiotemporal resolution reveal fine wavefront structures, and show that shock waves, expansion waves and turbulent boundary layers have different impacts on the wavefront aberration.
abstractGer	Abstract The existing methods for measuring aero-optical aberration suffer from several problems, such as low spatiotemporal resolution, sensitivity to environment, and integral effects. A new method for measuring aero-optical aberration of supersonic flow is proposed. Based on the self-developed measuring method of supersonic density field, the wavefront aberration induced by a cross-section of supersonic flow field could be measured by ray-tracing. Compared with other methods, the present one has three significant innovations: (1) high spatiotemporal resolution. Its time resolution is 6 ns, and the spatial resolution can reach up to micrometers; (2) it can avoid the integral effects and study the wavefront aberration induced by the flow field of interest locally; (3) it can also avoid the influence from the test section wall boundary layers and environmental disturbances. The present method was applied to supersonic flow around an optical bow cap. The results of high spatiotemporal resolution reveal fine wavefront structures, and show that shock waves, expansion waves and turbulent boundary layers have different impacts on the wavefront aberration.
abstract_unstemmed	Abstract The existing methods for measuring aero-optical aberration suffer from several problems, such as low spatiotemporal resolution, sensitivity to environment, and integral effects. A new method for measuring aero-optical aberration of supersonic flow is proposed. Based on the self-developed measuring method of supersonic density field, the wavefront aberration induced by a cross-section of supersonic flow field could be measured by ray-tracing. Compared with other methods, the present one has three significant innovations: (1) high spatiotemporal resolution. Its time resolution is 6 ns, and the spatial resolution can reach up to micrometers; (2) it can avoid the integral effects and study the wavefront aberration induced by the flow field of interest locally; (3) it can also avoid the influence from the test section wall boundary layers and environmental disturbances. The present method was applied to supersonic flow around an optical bow cap. The results of high spatiotemporal resolution reveal fine wavefront structures, and show that shock waves, expansion waves and turbulent boundary layers have different impacts on the wavefront aberration.
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title_short	Aero-optical aberration measuring method based on NPLS and its application
url	https://dx.doi.org/10.1007/s11434-010-4104-5
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up_date	2024-07-04T02:24:03.525Z
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A new method for measuring aero-optical aberration of supersonic flow is proposed. Based on the self-developed measuring method of supersonic density field, the wavefront aberration induced by a cross-section of supersonic flow field could be measured by ray-tracing. Compared with other methods, the present one has three significant innovations: (1) high spatiotemporal resolution. Its time resolution is 6 ns, and the spatial resolution can reach up to micrometers; (2) it can avoid the integral effects and study the wavefront aberration induced by the flow field of interest locally; (3) it can also avoid the influence from the test section wall boundary layers and environmental disturbances. The present method was applied to supersonic flow around an optical bow cap. The results of high spatiotemporal resolution reveal fine wavefront structures, and show that shock waves, expansion waves and turbulent boundary layers have different impacts on the wavefront aberration.</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">NPLS</subfield><subfield code="7">(dpeaa)DE-He213</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">supersonic flow field</subfield><subfield code="7">(dpeaa)DE-He213</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">aero-optics</subfield><subfield code="7">(dpeaa)DE-He213</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Tian, LiFeng</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Zhao, YuXin</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" 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Aero-optical aberration measuring method based on NPLS and its application

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