CN111659596A - Ultrasonic transducer longitudinal and transverse wave switching mechanism - Google Patents
Ultrasonic transducer longitudinal and transverse wave switching mechanism Download PDFInfo
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- CN111659596A CN111659596A CN201910162565.2A CN201910162565A CN111659596A CN 111659596 A CN111659596 A CN 111659596A CN 201910162565 A CN201910162565 A CN 201910162565A CN 111659596 A CN111659596 A CN 111659596A
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- 238000001125 extrusion Methods 0.000 claims abstract description 9
- 239000000463 material Substances 0.000 description 4
- 238000001514 detection method Methods 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 230000010287 polarization Effects 0.000 description 2
- 239000000523 sample Substances 0.000 description 2
- 235000019687 Lamb Nutrition 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000009659 non-destructive testing Methods 0.000 description 1
- 230000006798 recombination Effects 0.000 description 1
- 238000005215 recombination Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000002604 ultrasonography Methods 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
- B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
- B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
- B06B1/02—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy
- B06B1/06—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction
- B06B1/0607—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction using multiple elements
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
- B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
- B06B3/00—Methods or apparatus specially adapted for transmitting mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transducers For Ultrasonic Waves (AREA)
Abstract
The invention discloses an ultrasonic transducer longitudinal and transverse wave switching mechanism which comprises a first shell, wherein a back lining is fixedly embedded at the upper end of an inner cavity of the first shell, a vibrator component is fixedly connected to the middle of the lower end of the back lining, a first piezoelectric component and a second piezoelectric component are respectively arranged on the left side and the right side of the vibrator component, a contact end is fixedly connected to the middle of the lower end of the vibrator component, the lower part of the contact end is fixedly inserted at the lower end of the first shell, a second shell is fixedly connected to the upper end of the first shell, eight corners of the inner cavity of the second shell are fixedly connected with elastic rubber blocks, the inner ends of the elastic rubber blocks are fixedly connected with extrusion blocks through springs, and air bags are fixedly connected to the opposite ends of the extrusion blocks. The ultrasonic transducer longitudinal and transverse wave switching mechanism is characterized in that through the overall structure of the ultrasonic transducer, the circuit controls the double-pole switch to shift up and down, so that the vibrator component can generate shear waves and longitudinal waves, and the overall structure is controlled by the circuit more conveniently.
Description
Technical Field
The invention relates to the technical field of detection, in particular to an ultrasonic transducer longitudinal and transverse wave switching mechanism.
Background
Ultrasonic transducers are widely used in the field of ultrasonic nondestructive testing, and piezoelectric transducers are one of the ultrasonic transducers used more frequently. Ultrasound is roughly classified into longitudinal waves, transverse waves, rayleigh waves, guided waves, lamb waves, and the like according to its vibration mode and conduction mode, and transducers are mainly based on longitudinal and transverse wave probes. The existing ultrasonic transducer is designed into different structures according to needs to realize excitation and reception of transverse waves and longitudinal waves, but different engineering requirements have different detection purposes, and probes with different waveforms are repeatedly disconnected and connected to cause inconvenience to the engineering, so that the ultrasonic transducer longitudinal and transverse wave switching mechanism is provided.
Disclosure of Invention
The present invention provides a longitudinal and transverse wave switching mechanism for an ultrasonic transducer, so as to solve the problems in the background art.
In order to achieve the purpose, the invention provides the following technical scheme: an ultrasonic transducer longitudinal and transverse wave switching mechanism comprises a first shell, wherein a back lining is fixedly embedded at the upper end of an inner cavity of the first shell, a vibrator component is fixedly connected to the middle of the lower end of the back lining, a first piezoelectric component and a second piezoelectric component are respectively arranged on the left side and the right side of the vibrator component, a contact end is fixedly connected to the middle of the lower end of the vibrator component, the lower part of the contact end is fixedly inserted into the lower end of the first shell, a second shell is fixedly connected to the upper end of the first shell, eight corners of the inner cavity of the second shell are fixedly connected with elastic rubber blocks, the inner ends of the elastic rubber blocks are fixedly connected with extrusion blocks through springs, air bags are fixedly connected to opposite ends of the extrusion blocks, fixing plates are movably inserted between the air bags on the same side, and the opposite ends of the fixing plates are fixedly connected, the circuit switching device is connected with a BNC power source through a wire, the circuit switching device comprises a hexagonal switching switch and a switching interface, a foot 3 of the hexagonal switching switch is connected with a foot 4 of the BNC power source anode, the foot 3 of the hexagonal switching switch is connected with a negative pole of a first piezoelectric element, the foot 3 of the hexagonal switching switch is connected with feet 1 and 5 of the hexagonal switching switch through a double-pole switch, the foot 4 of the hexagonal switching switch is connected with a positive pole of the first piezoelectric element, the foot 4 of the hexagonal switching switch is connected with feet 2 and 6 of the hexagonal switching switch through the double-pole switch, the feet 2 and 5 of the hexagonal switching switch are connected with a negative pole of a second piezoelectric element after being connected in series, and the feet 1 and 6 of the hexagonal switching switch are connected with a positive pole of the second piezoelectric element after being connected in series.
Preferably, the housing of the circuit switching device is grounded.
Preferably, the interior of the first shell is filled with an inner liner.
Preferably, the circuit switching device is located in the middle of the inner cavity of the second shell, and a switch door is arranged at the front end of the second shell.
Preferably, the first piezoelectric component and the second piezoelectric component are the same in size, and the first piezoelectric component and the second piezoelectric component are arranged opposite to the middle of the vibrator component.
Compared with the prior art, the invention has the beneficial effects that: the ultrasonic transducer longitudinal and transverse wave switching mechanism is characterized in that through the overall structure of the ultrasonic transducer, the circuit control double-pole switch is used for shifting up and down, so that the vibrator component can generate shear waves and longitudinal waves, the overall structure is controlled by the circuit more conveniently, and a recombination circuit is not required to be disassembled.
Drawings
FIG. 1 is a cross-sectional view of the present invention;
FIG. 2 is a circuit diagram of the circuit switching device of the present invention.
In the figure: the circuit switching device comprises a first shell 1, a backing 2, a vibrator assembly 3, a first piezoelectric element 4, a second piezoelectric element 5, a contact end 6, a second shell 7, an elastic rubber block 8, a pressing block 9, an air bag 10, a fixing plate 11 and a circuit switching device 12.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-2, the present invention provides a technical solution: the utility model provides an ultrasonic transducer indulges transverse wave switching mechanism, includes first casing 1, the inside packing of first casing 1 has the inside lining, and 1 inside linings that is provided with of first casing, with first piezoelectric components and parts 4 and 5 direct contact of second piezoelectric components and parts, the packing device cavity is interval, increases the structural damping, reduces quality factor's value, reduces the sensor and surveys the blind area. The upper end of the inner cavity of the first shell 1 is fixedly embedded with a backing 2, the lining and the backing 2 play a role in protecting an internal structure, the middle part of the lower end of the backing 2 is fixedly connected with a vibrator component 3, the left side and the right side of the vibrator component 3 are respectively provided with a first piezoelectric component 4 and a second piezoelectric component 5, piezoelectric materials arranged in the first piezoelectric component 4 and the second piezoelectric component 5 can be used for electroacoustic and acoustoelectric conversion, and the output and the reception of electric signals and ultrasonic signals are realized according to the self positive and negative piezoelectric effect; the first piezoelectric component 4 and the second piezoelectric component 5 are the same in size, the first piezoelectric component 4 and the second piezoelectric component 5 are arranged opposite to the middle of the vibrator component 3, the middle of the lower end of the vibrator component 3 is fixedly connected with a contact end 6, the lower part of the contact end 6 is fixedly inserted at the lower end of the first shell 1, the upper end of the first shell 1 is fixedly connected with a second shell 7, eight corners of an inner cavity of the second shell 7 are fixedly connected with elastic rubber blocks 8, the inner ends of the elastic rubber blocks 8 are fixedly connected with extrusion blocks 9 through springs, opposite ends of the extrusion blocks 9 are fixedly connected with air bags 10, fixing plates 11 are movably inserted between the air bags 10 on the same side, and the structures of the extrusion blocks 9, the air bags 10 and the fixing plates 11 can enable the working environment of the circuit switching device 12 to be more stable and cannot vibrate along with the vibration of the vibrator component 3, the opposite ends of the fixing plate 11 are fixedly connected to the left end and the right end of the circuit switching device 12, the circuit switching device 12 attaches the first piezoelectric component 4 and the second piezoelectric component 5 to other material components to realize vibration conduction by changing the wiring mode of the piezoelectric components in the circuit, the first piezoelectric component 4 and the second piezoelectric component 5 generate vibration without phase difference by changing the wiring mode of the first piezoelectric component 4 and the second piezoelectric component 5, when an external electric field is added to the polarization direction of the piezoelectric material in the first piezoelectric component 4 and the second piezoelectric component 5, the piezoelectric material in the first piezoelectric component 4 and the second piezoelectric component 5 extends or shortens along the polarization direction, so that the first piezoelectric component 4 and the second piezoelectric component 5 generate vibration along the surface of the central vibrator component in actual operation, driving the central vibrator component to vibrate. When the first piezoelectric component 4 and the second piezoelectric component 5 vibrate in the same phase, the central vibrator component vibrates longitudinally to generate longitudinal waves; when the first piezoelectric element 4 and the second piezoelectric element 5 vibrate out of phase (with a phase difference), the center vibrator element vibrates laterally to generate a shear wave. The shell of the circuit switching device 12 is grounded, the circuit switching device 12 is located in the middle of the inner cavity of the second shell 7, and the front end of the second shell 7 is provided with a switch door. The circuit switching device 12 is connected with a BNC power supply through a wire, the circuit switching device 12 comprises a hexagonal switch and a switching interface, the negative pole of the BNC power supply is connected with a pin 3 of the hexagonal switch and a pin 4 of the BNC power supply positive pole connected with the hexagonal switch, the pin 3 of the hexagonal switch is connected with the negative pole of a first piezoelectric element 4, the pin 3 of the hexagonal switch is connected with pins 1 and 5 of the hexagonal switch through a double-pole switch, the pin 4 of the hexagonal switch is connected with the positive pole of the first piezoelectric element 4, the pin 4 of the hexagonal switch is connected with pins 2 and 6 of the hexagonal switch through the double-pole switch, the pins 2 and 5 of the hexagonal switch are connected with the negative pole of a second piezoelectric element 5 after being connected in series, the pins 1 and 6 of the hexagonal switch are connected with the positive pole of the second piezoelectric element 5 after being connected in series, and the double-pole switch realizes the switching of the pin 1, 2. The pins 3 and 4 or the pins 3, 4, 5 and 6 are switched on, the double-pole switch is pulled upwards, and the first piezoelectric component 4 and the second piezoelectric component 5 realize the shear wave wiring scheme, so that the tip of the central vibrator component generates shear waves; when the change-over switch is turned down, the first piezoelectric component 4 and the second piezoelectric component 5 realize the longitudinal wave wiring scheme, so that the tip of the central vibrator component generates longitudinal waves.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. The utility model provides an ultrasonic transducer longitudinal and transverse wave switching mechanism, includes first casing (1), its characterized in that: the upper end of the inner cavity of the first shell (1) is fixedly embedded with a backing (2), the middle part of the lower end of the backing (2) is fixedly connected with a vibrator component (3), the left side and the right side of the vibrator component (3) are respectively provided with a first piezoelectric component (4) and a second piezoelectric component (5), the middle part of the lower end of the vibrator component (3) is fixedly connected with a contact end (6), the lower part of the contact end (6) is fixedly inserted at the lower end of the first shell (1), the upper end of the first shell (1) is fixedly connected with a second shell (7), eight corners of the inner cavity of the second shell (7) are respectively and fixedly connected with an elastic rubber block (8), the inner end of the elastic rubber block (8) is respectively and fixedly connected with an extrusion block (9) through a spring, the opposite ends of the extrusion block (9) are respectively and fixedly connected with air bags (10), and a fixing plate (11) is, the opposite ends of the fixed plate (11) are fixedly connected with the left end and the right end of a circuit switching device (12), the circuit switching device (12) is connected with a BNC power supply through a lead, the circuit switching device (12) comprises a hexagonal switch and a switching interface, the negative pole of the BNC power supply is connected with a pin 3 of the hexagonal switch and the positive pole of the BNC power supply is connected with a pin 4 of the hexagonal switch, the pin 3 of the hexagonal switch is connected with the negative pole of a first piezoelectric element (4), the pin 3 of the hexagonal switch is connected with pins 1 and 5 of the hexagonal switch through a double-pole switch, the pin 4 of the hexagonal switch is connected with the positive pole of the first piezoelectric element (4), the pin 4 of the hexagonal switch is connected with pins 2 and 6 of the hexagonal switch through the double-pole switch, and the pins 2 and 5 of the hexagonal switch are connected with the negative pole of a second piezoelectric element (5) after being connected in series, and the pins 1 and 6 of the hexagonal change-over switch are connected in series and then connected with the anode of a second piezoelectric element (5).
2. The ultrasonic transducer longitudinal and transverse wave switching mechanism according to claim 1, wherein: the housing of the circuit switching device (12) is grounded.
3. The ultrasonic transducer longitudinal and transverse wave switching mechanism according to claim 1, wherein: the interior of the first shell (1) is filled with an inner liner.
4. The ultrasonic transducer longitudinal and transverse wave switching mechanism according to claim 1, wherein: the circuit switching device (12) is located in the middle of an inner cavity of the second shell (7), and a switch door is arranged at the front end of the second shell (7).
5. The ultrasonic transducer longitudinal and transverse wave switching mechanism according to claim 1, wherein: the size of the first piezoelectric component (4) is the same as that of the second piezoelectric component (5), and the first piezoelectric component (4) and the second piezoelectric component (5) are arranged opposite to the middle of the vibrator component (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910162565.2A CN111659596A (en) | 2019-03-05 | 2019-03-05 | Ultrasonic transducer longitudinal and transverse wave switching mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910162565.2A CN111659596A (en) | 2019-03-05 | 2019-03-05 | Ultrasonic transducer longitudinal and transverse wave switching mechanism |
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| Publication Number | Publication Date |
|---|---|
| CN111659596A true CN111659596A (en) | 2020-09-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910162565.2A Pending CN111659596A (en) | 2019-03-05 | 2019-03-05 | Ultrasonic transducer longitudinal and transverse wave switching mechanism |
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| Country | Link |
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| CN (1) | CN111659596A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1394538A1 (en) * | 2001-04-23 | 2004-03-03 | Andrei Anatolievich Samokrutov | Ultrasound low frequency composition converter provided with mode switch |
| CN101107417A (en) * | 2004-12-14 | 2008-01-16 | 柔性钻井有限公司 | Vibration apparatus |
| CN104475320A (en) * | 2014-12-09 | 2015-04-01 | 苏州科技学院 | Single-excitation ultrasonic elliptical vibration micro-machining work platform |
| CN209791931U (en) * | 2019-03-05 | 2019-12-17 | 侬泰轲（昆山）检测科技有限公司 | Ultrasonic transducer longitudinal and transverse wave switching mechanism |
-
2019
- 2019-03-05 CN CN201910162565.2A patent/CN111659596A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1394538A1 (en) * | 2001-04-23 | 2004-03-03 | Andrei Anatolievich Samokrutov | Ultrasound low frequency composition converter provided with mode switch |
| CN101107417A (en) * | 2004-12-14 | 2008-01-16 | 柔性钻井有限公司 | Vibration apparatus |
| CN104475320A (en) * | 2014-12-09 | 2015-04-01 | 苏州科技学院 | Single-excitation ultrasonic elliptical vibration micro-machining work platform |
| CN209791931U (en) * | 2019-03-05 | 2019-12-17 | 侬泰轲（昆山）检测科技有限公司 | Ultrasonic transducer longitudinal and transverse wave switching mechanism |
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