专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

81. 发明专利

JPS56165486A ULTRASONIC WAVE PROBE 失效
公开(公告)号：JPS56165486A
公开(公告)日：1981-12-19
申请号：JP6893980
申请日：1980-05-26
申请人： ALOKA CO LTD
发明人： KASAI CHIHIRO , FUJIE TAKESHI , KASORI MATSUKI
IPC分类号： H04R1/34 , A61B8/00 , G10K11/32
摘要： PURPOSE:To obtain an ultrasonic wave probe having a resonance over a wide range of frequency bands, by forming a concave or convex surface at least on one of both surfaces of an electroacoustic transducer which is used for an ultrasonic wave probe or forming a concave or convex surface having different curvatures on both sides of the transducer. CONSTITUTION:As shown in the diagram, at least one of both surfaces of an electroacoustic transducer 10 which is used for an ultrasonic wave probe is formed concave. An electrode 12 is formed on both surfaces with installation of a sound packing material 16 damping the free vibration on the rear side of the transducer 10. An electric signal having a frequency equal to the resonance frequency dicided by the thickness of the transducer 10 is supplied to the electrode 12 to produce an intensive ultrasonic wave. In the case of a concave surface, the center part of the transducer 10 has a resonance with a high frequency which is gradually reduced toward the circumference part. The same result is obtained with a convex surface instead of the concave surface or with a concave or convex surface having different curvatures. In such way, a wide frequency band fW can be obtained to realize a probe that is suited to various types of objects to be inspected.

82. 发明专利

JPS5650696A SOUND WAVE CONVERGENT TRANSDUCER USING HIGH MOLECULAR PIEZOELECTRIC SUBSTANCE 失效
公开(公告)号：JPS5650696A
公开(公告)日：1981-05-07
申请号：JP11665479
申请日：1979-09-13
申请人： TORAY INDUSTRIES
发明人： SUZUKI MIYO , NAKANISHI TOSHIHARU , DAITOU KOUJI
IPC分类号： H04R17/00 , G10K11/32 , H04R1/32
摘要： PURPOSE:To facilitate an easy manufacture of the high molecular piezoelectric substance and at the same time reduce the variance of the performance property of each ring, by securing an uneven high molecular piezoelectric substance and also setting the head between the convex and concave areas to lambda/2 substantially (lambda: lenght of ultrasonic wave with using frequency). CONSTITUTION:The back electrodes/reflecting plates 2 the concentric ring parts 2a-2d of which are convex and concave to each other in their forms are laminated on the upper surface of the supporter 1, and furthermore the high molecular piezoelectric substance film 3 and the surface electrode 4 are laminated successively to adhere close to the convex and concave areas of the plate 2. The head between the convex and concave areas of the electrode 4, i.e., the difference between the codes T and B in the figure is set substantially to 1/2 the sound wavelength lambda in the propagation medium and with the using frequency. As a result, the difference lambda can be secured for the distance to the focus O of the adjacent ring to give a shift equivalent to one wavelength. Thus a mutual strengthening is secured for the sound waves at the focus O even though the electrodes may be driven in the same phase. In addition, the electrodes in series will do with no split. As a result, the manufacture can be facilitated for the high molecular piezoelectric substance, at the same time reducing the variance among the rings.

83. 发明专利

JPS5550438B2 失效
公开(公告)号：JPS5550438B2
公开(公告)日：1980-12-18
申请号：JP13431174
申请日：1974-11-25
IPC分类号： G01S7/52 , A61B8/00 , G01N29/04 , G01S7/521 , G01S15/89 , G10K11/32 , H04R1/32 , H04R17/00

84. 发明专利

JPS5586287A METHOD OF FABRICATING SUPERSONIC CONVERTER 失效
公开(公告)号：JPS5586287A
公开(公告)日：1980-06-28
申请号：JP16545679
申请日：1979-12-18
申请人： SIEMENS AG
发明人： ARUTSUURU WAINSU
IPC分类号： H04R1/32 , G10K11/32 , H04R17/00

85. 发明专利

JPS556995A METHOD OF AND DEVICE FOR CONVERTING CONVERGENT ULTRASONIC WAVE 失效
公开(公告)号：JPS556995A
公开(公告)日：1980-01-18
申请号：JP6508379
申请日：1979-05-28
申请人： ADVANCED DIAGNOSTIC RES
发明人： REROI KOPERU
IPC分类号： H04R1/34 , G10K11/02 , G10K11/26 , G10K11/32 , H04R1/44

86. 发明专利

JPS54161315A ULTRASONIC TRANSDUCER 失效
公开(公告)号：JPS54161315A
公开(公告)日：1979-12-20
申请号：JP3150777
申请日：1977-03-24
申请人： TDK ELECTRONICS CO LTD , TODA KOJI
发明人： TODA KOUJI
IPC分类号： A61B8/14 , A61B8/00 , G01N29/24 , G01N29/28 , G01S7/521 , G10K11/32 , H04R1/40 , H04R17/00
摘要： PURPOSE:To provide an ultrasonic transducer, which is excellent in its beam convergence, with the use of a simple construction by converging an ultrasonic beam through the interdigital electrodes which are made of an immersed poezoelectric substance and which are arranged at a preset spacing. CONSTITUTION:A piezoelectric element 3 of an ultrasonic transducer, which is immersed in a liquid 2 such as water, ether, acetone or glycerin, is equipped with inter-digital electrodes 4 which is so spaced as to satisfy the condition of Equation I. With the use of such a simple construction, the ultrasonic beam generated by the transducer is satisfactorily converged while using the liquid level as a focal point. Here, rn: the horizontal distance between the nth electrode and the focal point; lambdaf: the wavelength of the ultrasonic waves having a frequency f in a liquid; L: the verticald distance between the electrodes and the focal point; and k1, k2: constants.

87. 发明专利

JPS53134488A NONNCONTACT GENERATING METHOD AND APPARATUS FOR SUPERSONIC WAVE ON SURFACES OF PHOTOOABSORBING MATERIALS 失效
公开(公告)号：JPS53134488A
公开(公告)日：1978-11-24
申请号：JP2079878
申请日：1978-02-24
申请人： KRAUTKRAEMER GMBH
发明人： WARUTAA KAURE , ERITSUKU PURIMUPUSHIYU
IPC分类号： G01N29/00 , G01N29/22 , G01N29/24 , G10K11/32 , G10K15/04

88. 发明专利

JPS52153471A ULTRASONIC TRANSMITTER AND RECEIVER 失效
公开(公告)号：JPS52153471A
公开(公告)日：1977-12-20
申请号：JP6973476
申请日：1976-06-16
申请人： OKI ELECTRIC IND CO LTD
发明人： KAMATA HIROSHI , OOGAKI MASAKATSU
IPC分类号： H04R17/00 , G01S7/521 , G10K11/32
摘要： PURPOSE:To provide broad-band characteristics and make possible controlling of directivity by giving notches to one side of a piezoelectric ceramic plate to mesh form at several kinds of wide to narrow spacings leaving part of the other side of the plate thereby forming a multiplicity of electrodes.

89. 发明专利

JPS51113601A ACOUSTIC FOCUSING LENS DEVICE 失效
公开(公告)号：JPS51113601A
公开(公告)日：1976-10-06
申请号：JP2427676
申请日：1976-03-08
申请人： VARIAN ASSOCIATES
发明人： UESUTON AASAA ANDAASON
IPC分类号： A61B8/14 , A61B8/00 , G01N29/06 , G01S15/89 , G10K11/30 , G10K11/32

90. 发明专利

JP5011323B2 Ultrasonograph 有权
公开(公告)号：JP5011323B2
公开(公告)日：2012-08-29
申请号：JP2009029698
申请日：2009-02-12
申请人：株式会社日立メディコ
发明人：英樹岡崎 , 美喜雄泉
IPC分类号： A61B8/00 , A61B8/14 , B06B1/06 , G10K11/32 , H04R17/00
CPC分类号： G10K11/32 , B06B1/0622

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式