RU2011107788A - METHOD OF LASER OPTICAL-ACOUSTIC TOMOGRAPHY AND DEVICE FOR ITS IMPLEMENTATION - Google Patents
METHOD OF LASER OPTICAL-ACOUSTIC TOMOGRAPHY AND DEVICE FOR ITS IMPLEMENTATION Download PDFInfo
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- RU2011107788A RU2011107788A RU2011107788/28A RU2011107788A RU2011107788A RU 2011107788 A RU2011107788 A RU 2011107788A RU 2011107788/28 A RU2011107788/28 A RU 2011107788/28A RU 2011107788 A RU2011107788 A RU 2011107788A RU 2011107788 A RU2011107788 A RU 2011107788A
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Abstract
1. Способ лазерной оптико-акустической томографии, заключающийся в генерации оптического импульса, преобразовании его в акустический сигнал, излучении этого сигнала в исследуемую среду, и приеме отраженного акустического сигнала пьезоэлементом с одной стороны, и облучении исследуемого объекта лазерным излучением, генерации акустического сигнала от этого объекта за счет оптико-акустического эффекта, и приеме акустического сигнала с другой стороны пьезоэлемента, отличающийся тем, что акустический импульс генерируется как с помощью распределенного оптико-акустического преобразователя, так и непосредственно неоднородностями исследуемого объекта, а регистрация отраженных, рассеянных и прошедших сигналов осуществляется единой решеткой пьезоэлементов. ! 2. Устройство для лазерной оптико-акустического томографии, содержащее многоканальную томографическую систему, выполненную в виде единого блока и содержащую оптическую систему, оптико-акустический преобразователь, а также решетку пьезоэлементов, каждый из которых соединен через многоканальный усилитель с многоканальным аналого-цифровым преобразователем и компьютером, акустическую линзу и импульсно-модулированный лазер, отличающееся тем, что в устройство введен делитель лазерного излучения, первый выход которого соединен с исследуемым объектом, а второй - с оптической системой. ! 3. Вариант устройства для лазерной оптико-акустического томографии, содержащий многоканальную томографическую систему, выполненную в виде единого блока и содержащую оптическую систему, оптико-акустический преобразователь, а также решетку пьезоэлементов, каждый из кото 1. The method of laser optical acoustic tomography, which consists in generating an optical pulse, converting it into an acoustic signal, emitting this signal into a test medium, and receiving a reflected acoustic signal with a piezoelectric element on one side, and irradiating the object under investigation with laser radiation, generating an acoustic signal from this object due to the optical-acoustic effect, and receiving an acoustic signal from the other side of the piezoelectric element, characterized in that the acoustic pulse is generated as using a predetermined optical-acoustic transducer, as well as directly by the inhomogeneities of the object under study, and registration of reflected, scattered and transmitted signals is carried out by a single array of piezoelectric elements. ! 2. Device for laser optical acoustic tomography, containing a multi-channel tomographic system, made in the form of a single unit and containing an optical system, an optical-acoustic transducer, as well as a piezoelectric array, each of which is connected through a multi-channel amplifier with a multi-channel analog-to-digital converter and a computer , an acoustic lens and a pulse-modulated laser, characterized in that a laser radiation divider is introduced into the device, the first output of which is connected to the object, and the second with the optical system. ! 3. A variant of a device for laser optical acoustic tomography, comprising a multi-channel tomographic system made in the form of a single unit and containing an optical system, an optical-acoustic transducer, and also a piezoelectric array, each of which
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RU2011107788/28A RU2486501C2 (en) | 2011-02-28 | 2011-02-28 | Laser optical-acoustic tomography method and apparatus for realising said method (versions) |
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RU2011107788/28A RU2486501C2 (en) | 2011-02-28 | 2011-02-28 | Laser optical-acoustic tomography method and apparatus for realising said method (versions) |
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RU2011107788A true RU2011107788A (en) | 2012-09-10 |
RU2486501C2 RU2486501C2 (en) | 2013-06-27 |
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Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
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US11471057B2 (en) | 2016-11-29 | 2022-10-18 | Washington University | Single-impulse panoramic photoacoustic computed tomography (SIP-PACT) |
RU171185U1 (en) * | 2016-12-29 | 2017-05-23 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Санкт-Петербургский государственный университет" (СПбГУ) | Device for monitoring the mechanical properties of a material under load |
RU2652965C1 (en) * | 2017-11-01 | 2018-05-03 | Федеральное государственное бюджетное учреждение "Национальный медицинский исследовательский центр радиологии" Министерства здравоохранения Российской Федерации (ФГБУ "НМИЦ радиологии" Минздрава России) | Device for monitoring the relative distribution of the laser radiation reflected from biological tissues |
RU2690077C1 (en) * | 2018-12-05 | 2019-05-30 | Сергей Анатольевич Бричков | Method and device for excitation of acoustic oscillations in compact, discrete, moisture-saturated and liquid media |
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JPS61292551A (en) * | 1985-06-20 | 1986-12-23 | Matsushita Electric Ind Co Ltd | Optical fiber state monitor |
US5381695A (en) * | 1987-11-27 | 1995-01-17 | British Technology Group Ltd. | Apparatus for investigating a sample with ultrasound |
RU2067760C1 (en) * | 1991-06-13 | 1996-10-10 | Могилевский Машиностроительный Институт | Acoustic-optical method of quality inspection and device for its implementation |
US5840023A (en) * | 1996-01-31 | 1998-11-24 | Oraevsky; Alexander A. | Optoacoustic imaging for medical diagnosis |
US5713356A (en) * | 1996-10-04 | 1998-02-03 | Optosonics, Inc. | Photoacoustic breast scanner |
RU2232983C2 (en) * | 2002-10-02 | 2004-07-20 | Белов Михаил Алексеевич | Method and device for laser-acoustic test of solid materials |
RU2315992C1 (en) * | 2006-05-10 | 2008-01-27 | Александр Алексеевич Карабутов | Method and device for diagnosing inhomogeneity of transparent materials |
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