A sensitivity-enhanced all-optical probe for non-contact laser ultrasonic inspection
Non-contact laser ultrasonic technique has been increasingly implemented for non-destructive inspections in harsh environments, high-temperature fields, and components having complex geometries. However, the poor signal-to-noise ratio and low amplitude of laser generated ultrasonic signals under a t...
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Veröffentlicht in: | Applied physics letters 2023-10, Vol.123 (17) |
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creator | Cheng, Zhongwen Yu, Jinhao Long, Bainian Zeng, Lvming Ji, Xuanrong |
description | Non-contact laser ultrasonic technique has been increasingly implemented for non-destructive inspections in harsh environments, high-temperature fields, and components having complex geometries. However, the poor signal-to-noise ratio and low amplitude of laser generated ultrasonic signals under a thermoelastic regime severely restrict its applications. Here, a sensitivity-enhanced all-optical probe was proposed for laser ultrasonic non-destructive testing. It consists of an optical sensor and an ellipsoidal acoustic cavity, where an optical sensor is placed at one focus of the cavity, and the detection point is set at another focus. The ultrasound signals are focused through the cavity and detected by the optical sensor. Side-by-side comparison experiments were carried out, and the results show that the probe can improve the signal amplitude by about 7.8 times compared to using a traditional optical sensor alone. The probe can make laser ultrasound detect defects with lower laser energy, which is of great significance to improve the efficiency of non-contact defect detection. |
doi_str_mv | 10.1063/5.0173995 |
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However, the poor signal-to-noise ratio and low amplitude of laser generated ultrasonic signals under a thermoelastic regime severely restrict its applications. Here, a sensitivity-enhanced all-optical probe was proposed for laser ultrasonic non-destructive testing. It consists of an optical sensor and an ellipsoidal acoustic cavity, where an optical sensor is placed at one focus of the cavity, and the detection point is set at another focus. The ultrasound signals are focused through the cavity and detected by the optical sensor. Side-by-side comparison experiments were carried out, and the results show that the probe can improve the signal amplitude by about 7.8 times compared to using a traditional optical sensor alone. The probe can make laser ultrasound detect defects with lower laser energy, which is of great significance to improve the efficiency of non-contact defect detection.</description><identifier>ISSN: 0003-6951</identifier><identifier>EISSN: 1077-3118</identifier><identifier>DOI: 10.1063/5.0173995</identifier><identifier>CODEN: APPLAB</identifier><language>eng</language><publisher>Melville: American Institute of Physics</publisher><subject>Amplitudes ; Applied physics ; Defects ; High temperature ; Lasers ; Nondestructive testing ; Optical measuring instruments ; Sensitivity enhancement ; Sensors ; Signal to noise ratio ; Ultrasonic imaging ; Ultrasonic methods ; Ultrasonic testing</subject><ispartof>Applied physics letters, 2023-10, Vol.123 (17)</ispartof><rights>Author(s)</rights><rights>2023 Author(s). Published under an exclusive license by AIP Publishing.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><cites>FETCH-LOGICAL-c252t-95d295d33a72b36b87a445fe34c6d18d681bb9e1e4de3bec793a8a8c4a32a7363</cites><orcidid>0000-0001-5884-1142 ; 0009-0006-8451-8908 ; 0000-0003-2920-283X ; 0009-0009-8707-518X ; 0000-0003-1627-0534</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://pubs.aip.org/apl/article-lookup/doi/10.1063/5.0173995$$EHTML$$P50$$Gscitation$$H</linktohtml><link.rule.ids>314,780,784,794,4512,27924,27925,76384</link.rule.ids></links><search><creatorcontrib>Cheng, Zhongwen</creatorcontrib><creatorcontrib>Yu, Jinhao</creatorcontrib><creatorcontrib>Long, Bainian</creatorcontrib><creatorcontrib>Zeng, Lvming</creatorcontrib><creatorcontrib>Ji, Xuanrong</creatorcontrib><title>A sensitivity-enhanced all-optical probe for non-contact laser ultrasonic inspection</title><title>Applied physics letters</title><description>Non-contact laser ultrasonic technique has been increasingly implemented for non-destructive inspections in harsh environments, high-temperature fields, and components having complex geometries. However, the poor signal-to-noise ratio and low amplitude of laser generated ultrasonic signals under a thermoelastic regime severely restrict its applications. Here, a sensitivity-enhanced all-optical probe was proposed for laser ultrasonic non-destructive testing. It consists of an optical sensor and an ellipsoidal acoustic cavity, where an optical sensor is placed at one focus of the cavity, and the detection point is set at another focus. The ultrasound signals are focused through the cavity and detected by the optical sensor. Side-by-side comparison experiments were carried out, and the results show that the probe can improve the signal amplitude by about 7.8 times compared to using a traditional optical sensor alone. The probe can make laser ultrasound detect defects with lower laser energy, which is of great significance to improve the efficiency of non-contact defect detection.</description><subject>Amplitudes</subject><subject>Applied physics</subject><subject>Defects</subject><subject>High temperature</subject><subject>Lasers</subject><subject>Nondestructive testing</subject><subject>Optical measuring instruments</subject><subject>Sensitivity enhancement</subject><subject>Sensors</subject><subject>Signal to noise ratio</subject><subject>Ultrasonic imaging</subject><subject>Ultrasonic methods</subject><subject>Ultrasonic testing</subject><issn>0003-6951</issn><issn>1077-3118</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2023</creationdate><recordtype>article</recordtype><recordid>eNp9kEFLAzEQhYMoWKsH_0HAk0JqsrPJZo-lWBUKXup5mc1mMWVN1iQV-u_d0p49DI-BjzfzHiH3gi8EV_AsF1xUUNfygswEryoGQuhLMuOcA1O1FNfkJqXdtMoCYEa2S5qsTy67X5cPzPov9MZ2FIeBhTE7gwMdY2gt7UOkPnhmgs9oMh0w2Uj3Q46YgneGOp9Ga7IL_pZc9Tgke3fWOflcv2xXb2zz8fq-Wm6YKWSRWS27YhoArIoWVKsrLEvZWyiN6oTulBZtW1thy85Ca01VA2rUpkQosAIFc_Jw8p0-_NnblJtd2Ec_nWwKrbkstVZyoh5PlIkhpWj7ZozuG-OhEbw5ltbI5lzaxD6d2GRcxmOWf-A_EblshQ</recordid><startdate>20231023</startdate><enddate>20231023</enddate><creator>Cheng, Zhongwen</creator><creator>Yu, Jinhao</creator><creator>Long, Bainian</creator><creator>Zeng, Lvming</creator><creator>Ji, Xuanrong</creator><general>American Institute of Physics</general><scope>AAYXX</scope><scope>CITATION</scope><scope>8FD</scope><scope>H8D</scope><scope>L7M</scope><orcidid>https://orcid.org/0000-0001-5884-1142</orcidid><orcidid>https://orcid.org/0009-0006-8451-8908</orcidid><orcidid>https://orcid.org/0000-0003-2920-283X</orcidid><orcidid>https://orcid.org/0009-0009-8707-518X</orcidid><orcidid>https://orcid.org/0000-0003-1627-0534</orcidid></search><sort><creationdate>20231023</creationdate><title>A sensitivity-enhanced all-optical probe for non-contact laser ultrasonic inspection</title><author>Cheng, Zhongwen ; Yu, Jinhao ; Long, Bainian ; Zeng, Lvming ; Ji, Xuanrong</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c252t-95d295d33a72b36b87a445fe34c6d18d681bb9e1e4de3bec793a8a8c4a32a7363</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2023</creationdate><topic>Amplitudes</topic><topic>Applied physics</topic><topic>Defects</topic><topic>High temperature</topic><topic>Lasers</topic><topic>Nondestructive testing</topic><topic>Optical measuring instruments</topic><topic>Sensitivity enhancement</topic><topic>Sensors</topic><topic>Signal to noise ratio</topic><topic>Ultrasonic imaging</topic><topic>Ultrasonic methods</topic><topic>Ultrasonic testing</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Cheng, Zhongwen</creatorcontrib><creatorcontrib>Yu, Jinhao</creatorcontrib><creatorcontrib>Long, Bainian</creatorcontrib><creatorcontrib>Zeng, Lvming</creatorcontrib><creatorcontrib>Ji, Xuanrong</creatorcontrib><collection>CrossRef</collection><collection>Technology Research Database</collection><collection>Aerospace Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Applied physics letters</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Cheng, Zhongwen</au><au>Yu, Jinhao</au><au>Long, Bainian</au><au>Zeng, Lvming</au><au>Ji, Xuanrong</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>A sensitivity-enhanced all-optical probe for non-contact laser ultrasonic inspection</atitle><jtitle>Applied physics letters</jtitle><date>2023-10-23</date><risdate>2023</risdate><volume>123</volume><issue>17</issue><issn>0003-6951</issn><eissn>1077-3118</eissn><coden>APPLAB</coden><abstract>Non-contact laser ultrasonic technique has been increasingly implemented for non-destructive inspections in harsh environments, high-temperature fields, and components having complex geometries. However, the poor signal-to-noise ratio and low amplitude of laser generated ultrasonic signals under a thermoelastic regime severely restrict its applications. Here, a sensitivity-enhanced all-optical probe was proposed for laser ultrasonic non-destructive testing. It consists of an optical sensor and an ellipsoidal acoustic cavity, where an optical sensor is placed at one focus of the cavity, and the detection point is set at another focus. The ultrasound signals are focused through the cavity and detected by the optical sensor. Side-by-side comparison experiments were carried out, and the results show that the probe can improve the signal amplitude by about 7.8 times compared to using a traditional optical sensor alone. 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source | American Institute of Physics (AIP) Journals; Alma/SFX Local Collection |
subjects | Amplitudes Applied physics Defects High temperature Lasers Nondestructive testing Optical measuring instruments Sensitivity enhancement Sensors Signal to noise ratio Ultrasonic imaging Ultrasonic methods Ultrasonic testing |
title | A sensitivity-enhanced all-optical probe for non-contact laser ultrasonic inspection |
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