CN209808383U - 25MHz piezoelectric vibrator for medical high-frequency ultrasonic transducer - Google Patents
25MHz piezoelectric vibrator for medical high-frequency ultrasonic transducer Download PDFInfo
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- CN209808383U CN209808383U CN201920179544.7U CN201920179544U CN209808383U CN 209808383 U CN209808383 U CN 209808383U CN 201920179544 U CN201920179544 U CN 201920179544U CN 209808383 U CN209808383 U CN 209808383U
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Abstract
The utility model discloses a 25MHz piezoelectric vibrator for medical science high frequency ultrasonic transducer, the structure includes: electrode lead, backing block, piezoelectric wafer and protection film, electrode lead have two, two electrode lead welds the upper surface at piezoelectric wafer, backing block and piezoelectric ceramic wafer bond together, backing block on process 2 micropores, two electrode lead pass the backing block through the aperture, the lower surface coating one deck protection film of piezoelectric wafer, piezoelectric wafer be PN piezoelectric ceramic wafer.
Description
Technical Field
The utility model relates to a 25MHz piezoelectricity oscillator for medical science high frequency ultrasonic transducer belongs to vibration sensor technical field.
Background
At present, the working frequency range of the ultrasonic transducer applied clinically is between 1 MHz and 15MHz, and the ultrasonic transducer is used for the blood flow condition examination of the superficial large blood vessels of human bodies, such as the detection of carotid artery blood flow condition, the detection of superficial tissue diseases of human bodies, and the detection of superficial small organs and superficial blood vessel milk
The linear array ultrasonic transducer for examining glandular muscle, skeleton and the like has a working frequency range of 5-14 MHz, is mainly a single array element and has a working frequency of about 10MHz, but actually, the working frequency of the ultrasonic transducer required in the detection and diagnosis of diseases such as superficial blood vessels of ophthalmology and the like of superficial tissues such as subcutaneous tissues of skin is between 10-100 MHz, and in recent years, along with the increasing demand of high-definition detection of superficial tissues and micro organs, the research of the high-frequency ultrasonic transducer in the field of clinical medicine is highly emphasized and gradually becomes a hot spot of biomedical ultrasonic research. Therefore, the invention adopts a mode of leading out the electrode wire on the same side surface of the piezoelectric wafer to prepare the 25MHz ultrahigh frequency piezoelectric vibrator for the medical high frequency ultrasonic transducer.
Disclosure of Invention
To the above problem, the to-be-solved technical problem of the utility model is to provide a 25MHz piezoelectric vibrator for medical science high frequency ultrasonic transducer, the piezoelectric wafer of adoption is PN piezoceramics wafer, and the vibration mode is simple, and two electrode lead wires are drawn forth from the same face of piezoelectric wafer, and preparation process flow is simple.
The utility model discloses a 25MHz piezoelectricity oscillator for medical science high frequency ultrasonic transducer, its structure includes: the piezoelectric ceramic chip comprises electrode leads, a backing block, piezoelectric wafers and protective films, wherein the number of the electrode leads 1 is two, the two electrode leads are welded on the upper surfaces of the piezoelectric wafers, the backing block and the piezoelectric ceramic wafers are adhered together, 2 small holes are processed in the backing block, the two electrode leads penetrate through the backing block through the small holes, and the lower surfaces of the piezoelectric wafers are coated with one layer of the protective film.
The piezoelectric wafer is a PN piezoelectric ceramic wafer.
The utility model has the advantages that: the utility model discloses a piezoelectric wafer be PN piezoceramics wafer, the vibration mode is simple, and two electrode lead wires are drawn forth from the same face of piezoelectric wafer, and the preparation process flow is simple.
Drawings
For ease of illustration, the invention is described in detail by the following detailed description and accompanying drawings.
Fig. 1 is a schematic structural diagram of the present invention.
In the figure: 1 two electrode leads 1; 2 backing block; 3 piezoelectric ceramic wafer; 4 protective film.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described below with reference to specific embodiments shown in the accompanying drawings. It should be understood that the description is intended to be illustrative only and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.
As shown in fig. 1, a 25MHz piezoelectric vibrator for medical high frequency ultrasonic transducer has a structure including: electrode lead 1, backing block 2, piezoelectric wafer 3 and protection film 4, electrode lead 1 have two, two electrode lead 1 welds the upper surface at piezoelectric wafer 3, backing block 2 and piezoelectric wafer 3 bond together, backing block 2 on process 2 apertures, two electrode lead 1 pass backing block 2 through the aperture, the lower surface coating one deck protection film 4 of piezoelectric wafer 3, piezoelectric wafer 3 be PN piezoceramics wafer.
The basic principles and main features of the present invention, the advantages of the present invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (2)
1. A25 MHz piezoelectric vibrator for medical high frequency ultrasonic transducer is characterized in that the structure comprises: the piezoelectric ceramic chip comprises two electrode leads, a backing block, a piezoelectric wafer and a protective film, wherein the two electrode leads are welded on the upper surface of the piezoelectric wafer, the backing block and the piezoelectric ceramic wafer are adhered together, 2 small holes are processed in the backing block, the two electrode leads penetrate through the backing block through the small holes, and the protective film is coated on the lower surface of the piezoelectric wafer.
2. The 25MHz piezoelectric vibrator for a medical high frequency ultrasonic transducer according to claim 1, wherein: the piezoelectric wafer is a PN piezoelectric ceramic wafer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920179544.7U CN209808383U (en) | 2019-02-01 | 2019-02-01 | 25MHz piezoelectric vibrator for medical high-frequency ultrasonic transducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920179544.7U CN209808383U (en) | 2019-02-01 | 2019-02-01 | 25MHz piezoelectric vibrator for medical high-frequency ultrasonic transducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209808383U true CN209808383U (en) | 2019-12-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201920179544.7U Active CN209808383U (en) | 2019-02-01 | 2019-02-01 | 25MHz piezoelectric vibrator for medical high-frequency ultrasonic transducer |
Country Status (1)
| Country | Link |
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| CN (1) | CN209808383U (en) |
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2019
- 2019-02-01 CN CN201920179544.7U patent/CN209808383U/en active Active
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