EA201900535A3 - DEVICE FOR LASER-ACOUSTIC CONTROL OF SOLID AND LIQUID MEDIA - Google Patents

DEVICE FOR LASER-ACOUSTIC CONTROL OF SOLID AND LIQUID MEDIA

Info

Publication number
EA201900535A3
EA201900535A3 EA201900535A EA201900535A EA201900535A3 EA 201900535 A3 EA201900535 A3 EA 201900535A3 EA 201900535 A EA201900535 A EA 201900535A EA 201900535 A EA201900535 A EA 201900535A EA 201900535 A3 EA201900535 A3 EA 201900535A3
Authority
EA
Eurasian Patent Office
Prior art keywords
solid
liquid media
laser
acoustic control
acoustic
Prior art date
Application number
EA201900535A
Other languages
Russian (ru)
Other versions
EA201900535A2 (en
EA038939B1 (en
Inventor
Юрий Васильевич Судьенков
Иван Валерьевич Смирнов
Original Assignee
Федеральное государственное бюджетное образовательное учреждение высшего образования "Санкт-Петербургский государственный университет" (СПбГУ)
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Федеральное государственное бюджетное образовательное учреждение высшего образования "Санкт-Петербургский государственный университет" (СПбГУ) filed Critical Федеральное государственное бюджетное образовательное учреждение высшего образования "Санкт-Петербургский государственный университет" (СПбГУ)
Publication of EA201900535A2 publication Critical patent/EA201900535A2/en
Publication of EA201900535A3 publication Critical patent/EA201900535A3/en
Publication of EA038939B1 publication Critical patent/EA038939B1/en

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
    • G01N29/04—Analysing solids
    • G01N29/07—Analysing solids by measuring propagation velocity or propagation time of acoustic waves
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
    • G01H9/00—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by using radiation-sensitive means, e.g. optical means

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)

Abstract

Изобретение относится к области неразрушающего контроля и может быть использовано для исследования неоднородностей структуры твердых и жидких сред. Заявленное изобретение обеспечивает расширение возможности применения лазерно-акустического метода контроля твердых и жидких сред за счет исключения необходимости обеспечения плоской поверхности исследуемого материала, повышение точности и надежности контроля за счет снижения влияния качества акустических контактов и собственных колебаний компонентов устройства на регистрируемые акустические сигналы, а также уменьшения их диссипации при прохождении по компонентам устройства.The invention relates to the field of non-destructive testing and can be used to study inhomogeneities in the structure of solid and liquid media. The claimed invention expands the possibility of using the laser-acoustic method for monitoring solid and liquid media by eliminating the need to provide a flat surface of the test material, increasing the accuracy and reliability of monitoring by reducing the influence of the quality of acoustic contacts and natural vibrations of device components on the recorded acoustic signals, as well as reducing their dissipation when passing through the components of the device.

EA201900535A 2018-12-07 2019-11-26 Device for laser acoustic monitoring of solid and liquid media EA038939B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RU2018143568A RU2732470C2 (en) 2018-12-07 2018-12-07 Device for laser-acoustic control of solid and liquid media

Publications (3)

Publication Number Publication Date
EA201900535A2 EA201900535A2 (en) 2020-08-31
EA201900535A3 true EA201900535A3 (en) 2020-11-30
EA038939B1 EA038939B1 (en) 2021-11-12

Family

ID=71067161

Family Applications (1)

Application Number Title Priority Date Filing Date
EA201900535A EA038939B1 (en) 2018-12-07 2019-11-26 Device for laser acoustic monitoring of solid and liquid media

Country Status (2)

Country Link
EA (1) EA038939B1 (en)
RU (1) RU2732470C2 (en)

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU107703A1 (en) * 1956-10-31 1956-11-30 И.М. Грачева Laboratory instrument for the extraction of the test substance
JPH10288607A (en) * 1997-04-15 1998-10-27 Mitsubishi Heavy Ind Ltd Ultrasonic sensor
RU2232983C2 (en) * 2002-10-02 2004-07-20 Белов Михаил Алексеевич Method and device for laser-acoustic test of solid materials
EP2047250B1 (en) * 2006-07-11 2018-11-07 The Curators Of The University Of Missouri Photo-acoustic detection device and method
EP2422185A4 (en) * 2009-04-20 2013-02-13 Univ Missouri Photoacoustic detection of analytes in solid tissue and detection system
US20130338475A1 (en) * 2012-06-13 2013-12-19 Seno Medical Instruments, Inc. Optoacoustic imaging system with fiber optic cable
US10433732B2 (en) * 2011-11-02 2019-10-08 Seno Medical Instruments, Inc. Optoacoustic imaging system having handheld probe utilizing optically reflective material
CN208432970U (en) * 2017-11-27 2019-01-25 信利光电股份有限公司 A kind of curved touch screen and electronic display unit

Also Published As

Publication number Publication date
EA201900535A2 (en) 2020-08-31
RU2732470C2 (en) 2020-09-17
EA038939B1 (en) 2021-11-12
RU2018143568A3 (en) 2020-06-08
RU2018143568A (en) 2020-06-08

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