CN203838120U - Bicrystal longitudinal wave angle probe - Google Patents
Bicrystal longitudinal wave angle probe Download PDFInfo
- Publication number
- CN203838120U CN203838120U CN201420138836.3U CN201420138836U CN203838120U CN 203838120 U CN203838120 U CN 203838120U CN 201420138836 U CN201420138836 U CN 201420138836U CN 203838120 U CN203838120 U CN 203838120U
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- wire
- probe
- crystal sheet
- voussoir
- handed crystal
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- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Abstract
The utility model relates to a bicrystal longitudinal wave angle probe which comprises a shielding casing. A left wedge block and a right wedge block are arranged in the shielding casing side by side, a sound insulation layer is arranged between the left wedge block and the right wedge block, a left acoustic impedence matching layer and a right acoustic impedence matching layer are arranged on the upper surface of the left wedge block and the upper surface of the right wedge block respectively and provided with a left wafer and a right wafer respectively, the shielding casing is further provided with a transmitting probe and a receiving probe, a core wire column in the transmitting probe leads a first wire out, a casing of the transmitting probe leads a second wire out, a left inductor is in parallel connection between the first wire and the second wire, a core wire column in the receiving probe leads a third wire out, a casing of the receiving probe leads a fourth wire out, and a right inductor is in parallel connection between the third wire and the fourth wire. The bicrystal longitudinal wave angle probe has the advantages that the matching between the probe and a load is achieved by increasing the acoustic impedence matching layers, and probe detection precision is improved.
Description
Technical field
The utility model relates to ultrasonic probe technical field, relates in particular to a kind of twin crystal longitudinal wave oblique probe.
Background technology
In order to ensure the reliability of ultrasound examination, it is crucial selecting good probe.The structure of double crystal probe is the combination of two single probes, launches electric pulse and does not enter receiving circuit for one for launching one for receiving, and is not therefore subject to the occlusive effects of detector device amplifier, can survey near surface flaw.Transmitting-receiving probe has respective delay piece, and the acoustic beam plane of incidence of two delay blocks is all with an inclination angle, and the size at inclination angle depends on wants the degree of depth of search coverage apart from test surface.
Double crystal probe has an acoustic energy concentration zones, utilizes this feature, can improve the defect detection sensitivity in palpus detecting area.Probe wafer sonic transmissions is had to great impact, due to the acoustic impedance of wafer and the acoustic impedance difference of delay block larger, can affect probe detect precision, affect measurement effect, therefore need to address this problem.
Utility model content
The technical problems to be solved in the utility model is: in order to improve accuracy of detection, the utility model provides a kind of twin crystal longitudinal wave oblique probe.
The utility model solves the technical scheme that its technical matters adopts: a kind of twin crystal longitudinal wave oblique probe, comprise screening can, left voussoir and right voussoir in screening can, are arranged side by side, between described left voussoir and right voussoir, be provided with sound insulating layer, the bottom surface of left voussoir and right voussoir is surface level, upper surface is inclined-plane, on the upper surface of left voussoir and right voussoir, be respectively arranged with left acoustic impedance matching layer and right acoustic impedance matching layer, on left acoustic impedance matching layer and right acoustic impedance matching layer, be respectively arranged with left-handed crystal sheet and right-handed crystal sheet, the bottom of left-handed crystal sheet and right-handed crystal sheet is also provided with goldleaf, on screening can, be also provided with corresponding with left-handed crystal sheet and right-handed crystal sheet respectively transmitting probe and receiving transducer, heart yearn post in described transmitting probe leads to the first wire being connected with left bottom of wafer goldleaf, the shell of transmitting probe leads to the second wire being connected with left upper wafer surface, between the first described wire and the second wire, be parallel with left inductance, heart yearn post in described receiving transducer leads to the privates being connected with right bottom of wafer goldleaf, the shell of receiving transducer leads to the privates that are connected with right upper wafer surface, between described privates and privates, be parallel with right inductance.
In order further to reduce the decay of acoustic energy, described left-handed crystal sheet and right-handed crystal sheet are piezoelectric ceramic wafer, and piezoelectric ceramic wafer is made up of the square little piezoelectric ceramic wafer array of polylith.
The beneficial effects of the utility model are, existing ultrasonic through different impedance interfaces propagation, to produce reflection, can increase energy loss and affect resolving power, therefore, twin crystal longitudinal wave oblique probe of the present utility model, realizes mating between probe and load by increasing acoustic impedance matching layer, improves probe accuracy of detection.
Brief description of the drawings
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the vertical view of removing in Fig. 1 after probe and inductance and screening can upper surface.
Fig. 3 is the vertical view of the utility model left-handed crystal sheet or right-handed crystal sheet.
In figure: 1, screening can, 2, left voussoir, 3, right voussoir, 4, sound insulating layer, 5, left acoustic impedance matching layer, 6, right acoustic impedance matching layer, 7, left-handed crystal sheet, 8, right-handed crystal sheet, 9, transmitting probe, 91, heart yearn post, 92, the first wire, 93, the second wire, 10, left inductance.
Embodiment
By reference to the accompanying drawings the utility model is described in further detail now.These accompanying drawings are the schematic diagram of simplification, and basic structure of the present utility model is only described in a schematic way, and therefore it only shows the formation relevant with the utility model.
As Fig. 1, shown in 2, embodiment of the present utility model, a kind of twin crystal longitudinal wave oblique probe, comprise screening can 1, left voussoir 2 and right voussoir 3 in screening can 1, are arranged side by side, between left voussoir 2 and right voussoir 3, be provided with sound insulating layer 4, the bottom surface of left voussoir 2 and right voussoir 3 is surface level, upper surface is inclined-plane, on the upper surface of left voussoir 2 and right voussoir 3, be respectively arranged with left acoustic impedance matching layer 5 and right acoustic impedance matching layer 6, on left acoustic impedance matching layer 5 and right acoustic impedance matching layer 6, be respectively arranged with left-handed crystal sheet 7 and right-handed crystal sheet 8, the bottom of left-handed crystal sheet 7 and right-handed crystal sheet 8 is also provided with goldleaf, on screening can 1, be also provided with corresponding with left-handed crystal sheet 7 and right-handed crystal sheet 8 respectively transmitting probe 9 and receiving transducer, heart yearn post 91 in transmitting probe 9 leads to the first wire 92 being connected with left-handed crystal sheet 7 bottom goldleaf, the shell of transmitting probe 9 leads to the second wire 93 being connected with left-handed crystal sheet 7 upper surfaces, between the first wire 92 and the second wire 93, be parallel with left inductance 10, heart yearn post in receiving transducer leads to the privates being connected with right bottom of wafer goldleaf, the shell of receiving transducer leads to the privates that are connected with right upper wafer surface, between privates and privates, be parallel with right inductance.
Left-handed crystal sheet 7 and right-handed crystal sheet 8 are piezoelectric ceramic wafer, and piezoelectric ceramic wafer is made up of the square little piezoelectric ceramic wafer array of polylith, bonding compound by adhesives between little piezoelectric ceramic wafer, as shown in Figure 3.Left acoustic impedance matching layer 5 and right acoustic impedance matching layer 6 are mixed with epoxy resin, tungsten powder and/or zirconium powder material.
Taking above-mentioned foundation desirable embodiment of the present utility model as enlightenment, by above-mentioned description, relevant staff can, not departing from the scope of this utility model technological thought, carry out various change and amendment completely.The technical scope of this utility model is not limited to the content on instructions, must determine its technical scope according to claim scope.
Claims (2)
1. a twin crystal longitudinal wave oblique probe, it is characterized in that: comprise screening can (1), left voussoir (2) and right voussoir (3) in screening can (1), are arranged side by side, between described left voussoir (2) and right voussoir (3), be provided with sound insulating layer (4), the bottom surface of left voussoir (2) and right voussoir (3) is surface level, upper surface is inclined-plane, on the upper surface of left voussoir (2) and right voussoir (3), be respectively arranged with left acoustic impedance matching layer (5) and right acoustic impedance matching layer (6), on left acoustic impedance matching layer (5) and right acoustic impedance matching layer (6), be respectively arranged with left-handed crystal sheet (7) and right-handed crystal sheet (8), the bottom of left-handed crystal sheet (7) and right-handed crystal sheet (8) is also provided with goldleaf, on screening can (1), be also provided with corresponding with left-handed crystal sheet (7) and right-handed crystal sheet (8) respectively transmitting probe (9) and receiving transducer, heart yearn post (91) in described transmitting probe (9) leads to the first wire (92) being connected with left-handed crystal sheet (7) bottom goldleaf, the shell of transmitting probe (9) leads to the second wire (93) being connected with left-handed crystal sheet (7) upper surface, between described the first wire (92) and the second wire (93), be parallel with left inductance (10), heart yearn post in described receiving transducer leads to the privates being connected with right bottom of wafer goldleaf, the shell of receiving transducer leads to the privates that are connected with right upper wafer surface, between described privates and privates, be parallel with right inductance.
2. twin crystal longitudinal wave oblique probe as claimed in claim 1, is characterized in that: described left-handed crystal sheet (7) and right-handed crystal sheet (8) are piezoelectric ceramic wafer, and piezoelectric ceramic wafer is made up of the square little piezoelectric ceramic wafer array of polylith.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420138836.3U CN203838120U (en) | 2014-03-25 | 2014-03-25 | Bicrystal longitudinal wave angle probe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420138836.3U CN203838120U (en) | 2014-03-25 | 2014-03-25 | Bicrystal longitudinal wave angle probe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203838120U true CN203838120U (en) | 2014-09-17 |
Family
ID=51515944
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420138836.3U Expired - Fee Related CN203838120U (en) | 2014-03-25 | 2014-03-25 | Bicrystal longitudinal wave angle probe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203838120U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103901114A (en) * | 2014-03-25 | 2014-07-02 | 常州市常超电子研究所有限公司 | Double-wafer longitudinal wave angle probe |
-
2014
- 2014-03-25 CN CN201420138836.3U patent/CN203838120U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103901114A (en) * | 2014-03-25 | 2014-07-02 | 常州市常超电子研究所有限公司 | Double-wafer longitudinal wave angle probe |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140917 Termination date: 20170325 |