SU1631754A1 - Ultrasonic converter for medical diagnostic instrumentation - Google Patents
Ultrasonic converter for medical diagnostic instrumentation Download PDFInfo
- Publication number
- SU1631754A1 SU1631754A1 SU874335393A SU4335393A SU1631754A1 SU 1631754 A1 SU1631754 A1 SU 1631754A1 SU 874335393 A SU874335393 A SU 874335393A SU 4335393 A SU4335393 A SU 4335393A SU 1631754 A1 SU1631754 A1 SU 1631754A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- medical diagnostic
- transducer
- matching layer
- sensitivity
- ultrasonic converter
- Prior art date
Links
Abstract
Изобретение относитс к медицинской технике и может быть использовано в ультразвуковых диагностических приборах. Цель изобретени - повышение чувствительности и широкополосности . В устройстве в качестве согласующего сло применен плоскопараллельный листовой материал четверть- волновой толщины из сополимера винил- хлорида и этилакрилата, например астралона. 2 ил. (ЛThe invention relates to medical technology and can be used in ultrasonic diagnostic devices. The purpose of the invention is to increase the sensitivity and broadband. In the device, a plane-parallel sheet material of quarter-wave thickness from a copolymer of vinyl chloride and ethyl acrylate, for example, astralone, is used as a matching layer. 2 Il. (L
Description
Изобретение относитс к медицинской технике и может быть использовано при ультразвуковом контроле в медицинской диагностике.The invention relates to medical technology and can be used in ultrasound testing in medical diagnostics.
Цель изобретени - повышение чувствительности и широкополосности при работе с биологическими средствами.The purpose of the invention is to increase the sensitivity and broadband when working with biological agents.
На фиг.1 показана конструкци ультразвукового преобразовател в виде эхоэонда (датчика); на фиг.2 - то же, поперечный разрез.Figure 1 shows the design of an ultrasound transducer in the form of an echoescale (sensor); figure 2 - the same cross section.
Эхозонд представл ет собой прот женную многоэлементную решетку. Основным его элементом вл етс тонка пьезокерамическа пластина 1, залита с тыльной стороны демпфером 2.The echod is a multi-element lattice. Its main element is a thin piezoceramic plate 1, the damper 2 is poured in from the back side.
К рабочей поверхности пьезопластины приклеена асталонова пластина 3. , Пьезопластина 1 вместе с частью демпфера 2 разрезана на узкие рабочие элементы 4.An astatal plate 3 is glued to the working surface of the piezoplate,. The piezoplastin 1, together with part of the damper 2, is cut into narrow working elements 4.
Преобразователь работает следующим образом.The Converter operates as follows.
При возбуждении пьезопреобразова- тел коротким-электрическим импульсом механические колебани последнего проход т в исследуемую среду (биологическую ткань) через согласующий чет- четвертьволновый слой 3. Отраженные от неоднородностей среды акустические сигналы достигают поверхности преобразовател через тот же слой 3 и преобразуютс в электрические сигналы.When a piezoelectric transducer is excited by a short-electric pulse, the mechanical oscillations of the latter pass into the medium under study (biological tissue) through a matching quarter-wave layer 3. The acoustic signals reflected from medium inhomogeneities reach the transducer surface through the same layer 3 and are converted into electrical signals.
о соabout with
елate
фиг.1figure 1
//
,;.,;
. .
- -
V:.:.V:.:.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU874335393A SU1631754A1 (en) | 1987-11-30 | 1987-11-30 | Ultrasonic converter for medical diagnostic instrumentation |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU874335393A SU1631754A1 (en) | 1987-11-30 | 1987-11-30 | Ultrasonic converter for medical diagnostic instrumentation |
Publications (1)
Publication Number | Publication Date |
---|---|
SU1631754A1 true SU1631754A1 (en) | 1991-02-28 |
Family
ID=21339045
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU874335393A SU1631754A1 (en) | 1987-11-30 | 1987-11-30 | Ultrasonic converter for medical diagnostic instrumentation |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU1631754A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2493673C1 (en) * | 2012-03-02 | 2013-09-20 | Елена Анатольевна Алюшникова | Ultrasonic transducer for physiotherapy equipment |
-
1987
- 1987-11-30 SU SU874335393A patent/SU1631754A1/en active
Non-Patent Citations (1)
Title |
---|
Бергман Л. Ультразвук. М.: ИЛ, 1957, с. 330-335. Домаркис В.И., Кажис. Р. - М.Ю. Контрольно-измерительные пьезоэлектрические преобразователи, Вильнюс; Минтис, 1975, с. 197-205. * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2493673C1 (en) * | 2012-03-02 | 2013-09-20 | Елена Анатольевна Алюшникова | Ultrasonic transducer for physiotherapy equipment |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP2745147B2 (en) | Piezoelectric transducer | |
US6666825B2 (en) | Ultrasound transducer for improving resolution in imaging system | |
CA1151285A (en) | Acoustic transducer with a quarter wavelength adaptation layer as a receiver | |
Saitoh et al. | A dual frequency ultrasonic probe for medical applications | |
JPH04211600A (en) | Ultrasonic probe system | |
Dausch et al. | Improved pulse-echo imaging performance for flexure-mode pMUT arrays | |
Zhang et al. | Fabrication and characterization of a wideband low-frequency CMUT array for air-coupled imaging | |
US9402598B2 (en) | Ultrasound probe and ultrasound diagnostic device using same | |
US4412147A (en) | Ultrasonic holography imaging device having a macromolecular piezoelectric element transducer | |
Selfridge et al. | Wideband spherically focused PVDF acoustic sources for calibration of ultrasound hydrophone probes | |
Wu et al. | Microfabrication and characterization of dual-frequency piezoelectric micromachined ultrasonic transducers | |
SU1631754A1 (en) | Ultrasonic converter for medical diagnostic instrumentation | |
Guo et al. | Design and fabrication of broadband graded ultrasonic transducers with rectangular kerfs | |
Ritter | Design, fabrication, and testing of high-frequency (> 20 MHz) composite ultrasound imaging arrays | |
Wan et al. | Characterization of High-frequency Ultrasound Transducers Made of Alternating Current Poled $ Pb (\text {Mg} _ {1/3}\text {Nb} _ {2/3})\mathrm {O} _ {3}-x\text {PbTiO} _ {3} $ Single Crystals | |
Zhang et al. | PVDF polymers: Imaging transducers and ultrasonic hydrophone probes | |
JP2720731B2 (en) | Composite piezoelectric | |
SU1460623A1 (en) | Method of determining acoustic resistance of materials with uneven surface | |
JPH0448039B2 (en) | ||
Jones et al. | A New Broad‐Band Ultrasonic Technique with Biomedical Implications. I. Background and Theoretical Discussion | |
Ballato et al. | Transmission‐Line Analogs For Stacked Crystals with Piezoelectric Excitation | |
JPH0961408A (en) | Evaluation of ceramics material | |
JPS59178378A (en) | Ultrasonic probe | |
JPH0678399A (en) | Composite piezoelectric body | |
JPS62237351A (en) | Ultrasonic echographic device and manufacture of linear array |