Ultrasonic excitation system and method based on quantum geometric phase effect and medium

Abstract

The invention provides an ultrasonic excitation system and method based on a quantum geometric phase effect and a medium, and belongs to the technical field of nondestructive testing. The system comprises an ultrasonic piezoelectric transducer, a damping substrate, an excitation control circuit and a control unit, the damping substrate is installed on the ultrasonic piezoelectric transducer, the excitation control circuit is electrically connected with the ultrasonic piezoelectric transducer, and the control unit is electrically connected with the excitation control circuit and used for starting the excitation control circuit and starting the excitation control circuit. The ultrasonic piezoelectric transducer is excited to emit an ultrasonic signal through the damping substrate, and circuit parameters of the excitation control circuit are obtained; acquiring a polarization direction phi of the ultrasonic signal according to the circuit parameters, and judging whether the phi is consistent with a preset direction or not; if not, the circuit parameters are adjusted, the new polarization direction of the ultrasonic signal is obtained according to the adjusted circuit parameters, and consistency judgment of the phi and the preset direction is repeated; and if yes, completing adjustment of phi. According to the invention, the adjustment convenience of the ultrasonic polarization direction can be improved, and the nondestructive testing efficiency and precision are improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of nondestructive testing, and in particular relates to an ultrasonic excitation system, method and medium based on quantum geometric phase effect. Background Art

[0002] In the manufacturing and use of pressure vessels and other structures in the fields of energy and electricity, petrochemicals, aerospace, transportation, etc., in order to ensure manufacturing quality and stability in use, the structures are usually inspected during the manufacturing process or use to effectively monitor the manufacturing quality and health of the structure.

[0003] At present, ultrasonic technology is generally used to achieve non-destructive testing of the inside of the structure. During the detection process, since the ultrasonic wave passes through different media during propagation, there is anisotropy between the media, which causes polarization of the ultrasonic signal. In order to ensure the comprehensiveness of the detection, it is necessary to adjust the polarization direction of the ultrasonic signal. However, it can be seen from the Chinese invention patent with application number "202110629067.1" and the Chinese utility model patent with application number "201620002541.2" that the existing direction adjustment is generally adjusted through a mechanical structure, and the adjustment convenience is poor. Summary of the invention

[0004] The technical problem to be solved by the present invention is how to improve the convenience of adjusting the polarization direction of ultrasound. In view of the shortcomings of the prior art, an ultrasonic excitation system, method and medium based on quantum geometric phase effect are provided.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0006] In a first aspect, the present invention provides an ultrasonic excitation system based on quantum geometric phase effect, comprising an ultrasonic piezoelectric transducer, a damping substrate, an excitation control circuit and a control unit, wherein the damping substrate is mounted on the ultrasonic piezoelectric transducer, the excitation control circuit is electrically connected to the ultrasonic piezoelectric transducer, and the control unit is electrically connected to the excitation control circuit and is used to:

[0007] Turning on the excitation control circuit, exciting the ultrasonic piezoelectric transducer to transmit an ultrasonic signal through the damping substrate, and acquiring circuit parameters of the excitation control circuit;

[0008] Acquire the polarization direction φ of the ultrasonic signal according to the circuit parameters, and determine whether the polarization direction φ is consistent with a preset direction;

[0009] If not, adjusting the circuit parameters, obtaining a new polarization direction of the ultrasonic signal according to the adjusted circuit parameters, and repeating the consistency judgment of φ and the preset direction;

[0010] If so, the adjustment of φ is completed.

[0011] Compared with the prior art, the beneficial effects of the ultrasonic excitation system based on quantum geometric phase effect of the present invention include: an ultrasonic piezoelectric transducer, a damping substrate, an excitation control circuit and a control unit are arranged to form an ultrasonic excitation system based on quantum geometric phase effect, wherein the damping substrate is installed on the ultrasonic piezoelectric transducer and can be attached to the surface of the structure to be detected, so that when the ultrasonic piezoelectric transducer transmits an ultrasonic signal, the ultrasonic signal can be transmitted to the structure to be detected through the damping substrate, and the ultrasonic signal is filtered by the damping substrate to weaken the noise, thereby improving the accuracy and reliability of ultrasonic detection. At the same time, the damping substrate can support the piezoelectric chip on the ultrasonic piezoelectric transducer to prevent the inertial vibration of the piezoelectric chip, thereby ensuring the stability of the piezoelectric chip during operation; on this basis, the excitation control circuit and the ultrasonic piezoelectric transducer are electrically connected, so that electrical energy is transmitted to the ultrasonic piezoelectric transducer through the excitation control circuit, so that the piezoelectric chip can be In the process of converting electrical energy into mechanical energy, vibration is generated, ultrasonic waves are emitted, and ultrasonic wave excitation is realized. At the same time, the control unit is electrically connected to the excitation control circuit. In the process of ultrasonic wave excitation, the control unit can control the excitation control circuit to start, thereby realizing ultrasonic wave excitation. Moreover, the control unit can collect circuit parameters of the excitation control circuit, and calculate the polarization direction φ of the ultrasonic signal generated by the excitation according to the circuit parameters. When φ is inconsistent with the preset direction, the control unit can use the influence of the excitation control circuit on the ultrasonic piezoelectric transducer to adjust φ by adjusting the circuit parameters of the excitation control circuit. Through the cycle of adjustment, verification, and re-adjustment, the φ of the ultrasonic signal is made consistent with the preset direction, thereby realizing precise adjustment of φ. Moreover, the whole process is realized by an automated control unit, which is convenient to operate, thereby effectively improving the convenience of adjusting the ultrasonic polarization direction φ, and improving the efficiency and accuracy of non-destructive testing and structural health monitoring technology.

[0012] Optionally, the excitation control circuit is a coupled LRC circuit, which includes a first sub-circuit and a second sub-circuit coupled to each other, wherein the circuit parameters of the first sub-circuit include capacitor C1, inductor L1 and resistor R1, and the circuit parameters of the second sub-circuit include capacitor C2, inductor L2 and resistor R2.

[0013] Optionally, the excitation control circuit further has characteristic parameters, and the control unit is specifically used in the process of acquiring the polarization direction φ of the ultrasonic signal according to the circuit parameters:

[0014] Acquiring characteristic parameters of the excitation control circuit according to the circuit parameters;

[0015] The φ is obtained according to the characteristic parameter.

[0016] Optionally, the characteristic parameter includes a natural frequency ω of the resonant circuit and a resistance characteristic parameter χ of the resonant circuit, and the ω and the χ are obtained by the following equations:

[0017]

[0018] χ i =R i

[0019] Wherein, the i is 1 or 2.

[0020] Optionally, the φ, the ω and the χ satisfy the following equation:

[0021]

[0022] Optionally, the control unit is further used for:

[0023] The polarization mode of the ultrasonic signal is obtained according to the characteristic parameter and φ, wherein the polarization mode satisfies the formula e is a constant;

[0024] Determining whether the polarization mode is consistent with a preset mode;

[0025] If not, adjusting the circuit parameters, obtaining a new polarization mode according to the adjusted circuit parameters, and repeating the consistency determination between the polarization mode and the preset direction;

[0026] If so, the adjustment of the polarization mode is completed.

[0027] Optionally, the characteristic parameters further include an excitation voltage κ of the resonant circuit and an excitation ultrasonic signal frequency β, and the ω, the χ, the κ and the β satisfy the following equivalent relationship:

[0028]

[0029] The κ is obtained according to the following equation:

[0030]

[0031] Optionally, the ultrasonic piezoelectric transducer and / or the damping substrate have a resonance characteristic, and the resonance characteristic includes at least one of mass, stiffness and damping characteristics. The process of the control unit adjusting the circuit parameters specifically includes: correcting the circuit parameters according to the resonance characteristic.

[0032] In a second aspect, the present invention provides an ultrasonic excitation method based on quantum geometric phase effect, based on the ultrasonic excitation system based on quantum geometric phase effect as described above, the ultrasonic excitation method based on quantum geometric phase effect comprises:

[0033] S1. Turning on an excitation control circuit through a control unit of the ultrasonic excitation system based on quantum geometric phase effect to excite an ultrasonic piezoelectric transducer to emit an ultrasonic signal through a damping substrate;

[0034] S2. acquiring circuit parameters of the excitation control circuit through the control unit;

[0035] S3, acquiring the polarization direction φ of the ultrasonic signal according to the circuit parameters and through the control unit;

[0036] S4, determining, by the control unit, whether the φ is consistent with a preset direction;

[0037] S5. If not, adjust the circuit parameters through the control unit and repeat S3;

[0038] S6. If yes, complete the adjustment of φ.

[0039] Compared with the prior art, the beneficial effects of the ultrasonic excitation method based on quantum geometric phase effect of the present invention are the same as the beneficial effects of the ultrasonic excitation system based on quantum geometric phase effect as described above, and will not be repeated here.

[0040] In a third aspect, the present invention further provides a computer storage medium having a computer program stored thereon, and when the computer program is executed by a processor, the ultrasonic excitation method based on quantum geometric phase effect as described above is implemented.

[0041] Compared with the prior art, the beneficial effects of the computer storage medium of the present invention are the same as the beneficial effects of the ultrasonic excitation method based on quantum geometric phase effect as described above, and will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] The present invention is further described in detail below in conjunction with the accompanying drawings.

[0043] Figure 1 : A connection diagram of an ultrasonic excitation system based on quantum geometric phase effect in an embodiment of the present invention;

[0044] Figure 2 : Flow chart of an ultrasonic excitation method based on quantum geometric phase effect in an embodiment of the present invention;

[0045] Figure 3 : Schematic diagram of the transmission of ultrasonic waves after being excited in an embodiment of the present invention.

[0046] Among them, 1-ultrasonic piezoelectric transducer, 11-piezoelectric chip, 2-damping substrate, 3-excitation control circuit, 4-control unit. DETAILED DESCRIPTION

[0047] In order to better understand the present invention, the content of the present invention is further clearly set forth in conjunction with the embodiments below, but the protection content of the present invention is not limited to the following embodiments. In the following description, a large number of specific details are provided in order to provide a more thorough understanding of the present invention. However, it is obvious to those skilled in the art that the present invention can be implemented without one or more of these details.

[0048] It should be noted that the Z axis in the drawings represents the vertical direction, that is, the up and down position, and the positive direction of the Z axis represents the top, and the reverse direction of the Z axis represents the bottom; the Y axis in the drawings represents the horizontal direction, and is designated as the front and back position, and the positive direction of the Y axis represents the front side, and the reverse direction of the Y axis represents the back side; the X axis in the drawings represents the left and right position, and the positive direction of the X axis represents the right side, and the reverse direction of the X axis represents the left side. It should also be noted that the aforementioned Z axis, Y axis, and X axis are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0049] The term "including" and its variations used in this document are open inclusions, that is, "including but not limited to"; the term "based on" means "based at least in part on"; the term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one other embodiment"; the term "some embodiments" means "at least some embodiments"; the term "optionally" means "optional embodiments". The relevant definitions of other terms will be given in the following description. It should be noted that the concepts of "first", "second", etc. mentioned in the present invention are only used to distinguish different devices, modules or units, and are not used to limit the order or interdependence of the functions performed by these devices, modules or units.

[0050] It should be noted that the modifications of "one" and "plurality" mentioned in the present invention are illustrative rather than restrictive, and those skilled in the art should understand that, unless otherwise clearly indicated in the context, it should be understood as "one or more".

[0051] In the first aspect, an embodiment of the present invention provides an ultrasonic excitation system based on quantum geometric phase effect, comprising an ultrasonic piezoelectric transducer 1, a damping substrate 2, an excitation control circuit 3 and a control unit 4, wherein the damping substrate 2 is mounted on the ultrasonic piezoelectric transducer 1, the excitation control circuit 3 is electrically connected to the ultrasonic piezoelectric transducer 1, and the control unit 4 is electrically connected to the excitation control circuit 3, and is used to: turn on the excitation control circuit 3, excite the ultrasonic piezoelectric transducer 1 to emit an ultrasonic signal through the damping substrate 2, and obtain circuit parameters of the excitation control circuit 3; obtain the polarization direction φ of the ultrasonic signal according to the circuit parameters, and determine whether φ is consistent with a preset direction; if not, adjust the circuit parameters, obtain a new polarization direction of the ultrasonic signal according to the adjusted circuit parameters, and repeat the consistency judgment of φ with the preset direction; if so, complete the adjustment of φ.

[0052] Specifically, the control unit 4 can be a portable controller such as a remote control, or a fixed controller such as a computer; the damping substrate 2 is made of acoustic barrier material, which can effectively suppress the generation of surface acoustic waves and pseudo echoes, thereby improving the signal-to-noise ratio of the ultrasonic signal; the ultrasonic piezoelectric transducer 1 includes a piezoelectric chip 11, which is one of the core components of the ultrasonic sensor and is responsible for converting electrical energy into mechanical energy, thereby emitting ultrasonic waves.

[0053] In this embodiment, Figure 1As shown, an ultrasonic piezoelectric transducer 1, a damping substrate 2, an excitation control circuit 3 and a control unit 4 are provided to form an ultrasonic excitation system based on the quantum geometric phase effect, wherein the damping substrate 2 is mounted on the ultrasonic piezoelectric transducer 1 and can be attached to the surface of the structure to be detected, so that when the ultrasonic piezoelectric transducer 1 transmits an ultrasonic signal, the ultrasonic signal can be transmitted to the structure to be detected through the damping substrate 2, and the ultrasonic signal is filtered by the damping substrate 2 to weaken the noise, thereby improving the accuracy and reliability of ultrasonic detection. At the same time, the damping substrate 2 can support the piezoelectric chip 11 on the ultrasonic piezoelectric transducer 1 to prevent the inertial vibration of the piezoelectric chip 11, thereby ensuring the stability of the piezoelectric chip 11 during operation; on this basis, the excitation control circuit 3 is electrically connected to the ultrasonic piezoelectric transducer 1, so that electrical energy is transmitted to the ultrasonic piezoelectric transducer 1 through the excitation control circuit 3, so that the piezoelectric chip 11 is in the process of converting electrical energy into mechanical energy. Generate vibration, emit ultrasonic waves, and realize ultrasonic excitation. At the same time, the control unit 4 is electrically connected to the excitation control circuit 3. During the ultrasonic excitation process, the control unit 4 can control the excitation control circuit 3 to start, thereby realizing ultrasonic excitation. Moreover, the control unit 4 can collect the circuit parameters of the excitation control circuit 3, and calculate the polarization direction φ of the ultrasonic signal generated by the excitation according to the circuit parameters. When φ is inconsistent with the preset direction, the control unit 4 can use the influence of the excitation control circuit 3 on the ultrasonic piezoelectric transducer 1 to adjust φ by adjusting the circuit parameters of the excitation control circuit 3. Through the cycle of adjustment, verification, and re-adjustment, the φ of the ultrasonic signal is kept consistent with the preset direction, thereby realizing precise adjustment of φ. Moreover, the entire process is realized by the automated control unit 4, which is convenient to operate, thereby effectively improving the convenience of adjusting the ultrasonic polarization direction φ, and improving the efficiency and accuracy of non-destructive testing and structural health monitoring technology.

[0054] It should be noted that if Figure 3 As shown, by adjusting the circuit parameters of the excitation control circuit 3, the ultrasonic polarization direction φ can be adjusted, thereby controlling the ultrasonic detection range within the deflection angle range of 5° to 175° relative to the structure to be detected.

[0055] It should be noted that if Figure 3 As shown, the combination of a single ultrasonic piezoelectric transducer 1 and a damping substrate 2 can only obtain a two-dimensional plane image of the defect position for ultrasonic detection of the structure to be detected. In order to further improve the comprehensiveness of the detection, the combination of the ultrasonic transducer 1 and the damping substrate 2 is set to multiple. By utilizing the Doppler effect, ultrasonic detection of the structure to be detected can be performed from multiple angles, thereby obtaining a three-dimensional stereo image of the defect position.

[0056] Optionally, the excitation control circuit 3 is a coupled LRC circuit, which includes a first sub-circuit and a second sub-circuit that are coupled to each other, wherein the circuit parameters of the first sub-circuit include capacitor C1, inductor L1 and resistor R1, and the circuit parameters of the second sub-circuit include capacitor C2, inductor L2 and resistor R2.

[0057] Specifically, a coupled LRC circuit refers to two or more LRC circuits that interact with each other through mutual inductance. The circuit parameters of the LRC are inductance L, resistance R and capacitance C. The coupled LRC circuits realize power transmission through mutual inductance; the first sub-circuit is electrically connected to the control unit 4, and a power supply is provided in the control unit 4 to power the first sub-circuit, and the second sub-circuit is electrically connected to the ultrasonic piezoelectric transducer 1.

[0058] In this optional embodiment, if Figure 1 As shown, the excitation control circuit 3 is set to a coupled LRC circuit, which is composed of a first sub-circuit and a second sub-circuit coupled and connected, wherein, since the first sub-circuit and the second sub-circuit realize power transmission through mutual inductance, when the circuit parameters of the first sub-circuit are adjusted, the circuit parameters of the second sub-circuit will also change accordingly, and finally the circuit parameters of the entire excitation control circuit 3 are adjusted, and the adjustment convenience is effectively improved; on this basis, the circuit parameters of the first sub-circuit include capacitor C1, inductor L1 and resistor R1, and the circuit parameters of the second sub-circuit include capacitor C2, inductor L2 and resistor R2, so that the electric energy finally output by the excitation control circuit 3 to the ultrasonic piezoelectric transducer 1 can be controlled by correspondingly adjusting the inductor L, resistor R and capacitor C, thereby realizing the excitation of ultrasonic waves and the adjustment of the polarization direction φ of the ultrasonic signal.

[0059] Optionally, the excitation control circuit 3 also has characteristic parameters, and the control unit 4 is specifically used in the process of obtaining the polarization direction φ of the ultrasonic signal according to the circuit parameters to: obtain the characteristic parameters of the excitation control circuit 3 according to the circuit parameters; and obtain φ according to the characteristic parameters.

[0060] In this optional embodiment, in order to further improve the adjustment accuracy of the polarization direction φ of the ultrasonic signal, an equivalent model is established according to the relationship between the excitation control circuit 3 and the ultrasonic piezoelectric transducer 1. The equivalent model has characteristic parameters that can reflect the polarization direction φ of the excited ultrasonic signal. The characteristic parameters can be calculated through the circuit parameters of the excitation control circuit 3, and the characteristic parameters can also be adjusted by adjusting the circuit parameters. Therefore, the control unit 4 only needs to change the characteristic parameters to the required values ​​by adjusting the circuit parameters to ensure that the polarization direction φ of the excited ultrasonic signal is consistent with the preset direction, thereby further improving the adjustment accuracy and convenience of the polarization direction φ of the ultrasonic signal.

[0061] Optionally, the characteristic parameters include a natural frequency ω of the resonant circuit and a resistance characteristic parameter χ of the resonant circuit, and ω and χ are obtained by the following equations:

[0062]

[0063] χ i =R i

[0064] Where i is 1 or 2.

[0065] Optionally, φ, ω, and χ satisfy the following equations:

[0066]

[0067] In this optional embodiment, in the established equivalent model, the characteristic parameters are selected from the natural frequency ω of the resonant circuit and the resistance characteristic parameter χ of the resonant circuit, wherein, since the equivalent model is established based on the first subcircuit and the second subcircuit of the excitation control circuit 3, the circuit parameters have two groups, and therefore, ω and χ also have two, ω1 is calculated by C1 and L1, ω2 is calculated by C2 and L2, χ1 is numerically consistent with R1, and χ2 is numerically consistent with R1. In this way, by adjusting the circuit parameters of the first subcircuit, the circuit parameters of the second subcircuit are changed, and finally the required ω and χ are obtained. After obtaining ω and χ, the polarization direction φ of the ultrasonic signal at this time can be obtained by the equations of φ, ω and χ set when the equivalent model is established, thereby realizing precise adjustment of the ultrasonic polarization direction φ.

[0068] Optionally, the control unit 4 is further configured to: obtain a polarization mode of the ultrasonic signal according to the characteristic parameter and φ, wherein the polarization mode satisfies the formula e is a constant; determine whether the polarization mode is consistent with the preset mode; if not, adjust the circuit parameters, obtain a new polarization mode according to the adjusted circuit parameters, and repeat the consistency judgment of the polarization mode with the preset direction; if so, complete the adjustment of the polarization mode.

[0069] Specifically, during the propagation process of ultrasonic waves after excitation, the polarization characteristics of the ultrasonic waves include a polarization mode in addition to the polarization direction φ, and the polarization direction φ affects the polarization mode of the ultrasonic signal.

[0070] In this optional embodiment, since the polarization mode is affected by the polarization direction φ and the characteristic parameters of the equivalent model, a formula for the polarization mode is also set during the establishment of the equivalent model. The polarization mode of the current ultrasonic wave can be calculated by substituting the calculated characteristic parameters and φ into the formula, and then the characteristic parameters and φ are adjusted by adjusting the circuit parameters of the excitation control circuit 3. Through the cycle of adjustment, verification, and re-adjustment, the polarization mode of the ultrasonic signal is kept consistent with the preset mode, and the polarization mode is accurately adjusted, thereby ensuring accurate control of the excited ultrasonic wave. Moreover, the entire process is implemented through an automated control unit 4, which is easy to operate, thereby effectively improving the convenience of adjusting the ultrasonic polarization mode.

[0071] Optionally, the characteristic parameters also include an excitation voltage κ of the resonant circuit and an excitation ultrasonic signal frequency β, and ω, χ, κ and β satisfy the following equivalent relationship:

[0072]

[0073] κ is obtained according to the following equation:

[0074]

[0075] In this optional embodiment, during the ultrasonic detection process, it is necessary to keep the excitation ultrasonic signal frequency β stable, and β is affected by ω and χ. At the same time, during the ultrasonic excitation process, the excitation voltage κ of the resonant circuit corresponding to β is also affected by ω and χ. Therefore, in the process of establishing the equivalent model, the equivalent relationship between β, ω, χ and κ is also set as the logical basis of the equivalent circuit model. At the same time, the equations of ω, χ and κ are also set to calculate κ. In this way, in the process of adjusting the circuit parameters and then adjusting the characteristic parameters, the ultrasonic excitation process is reflected in real time by calculating the excitation voltage κ, and then β is kept stable by adjusting ω, χ and κ to ensure the stability of the ultrasonic signal. Finally, depending on the adjustment of χ, the scanning mode, range and focusing characteristics of the transmitted ultrasonic signal can be automatically adjusted.

[0076] Optionally, the ultrasonic piezoelectric transducer 1 and / or the damping substrate 2 has a resonance characteristic, and the resonance characteristic includes at least one of mass, stiffness and damping characteristics. The process of the control unit 4 adjusting the circuit parameters specifically includes: correcting the circuit parameters according to the resonance characteristic.

[0077] In this optional embodiment, the excitation control circuit 3 and the ultrasonic piezoelectric transducer 1 and / or the damping substrate 2 are equivalent to form a resonant circuit, wherein the resonant characteristics include at least one of mass, stiffness and damping characteristics, so that the entire resonant circuit can be adjusted by adjusting the resonant characteristics. Moreover, the circuit parameters of the excitation control circuit 3 can be modified by adjusting the resonant characteristics, thereby affecting the polarization characteristics of the ultrasonic signal.

[0078] It should be noted that the modification of the circuit parameters in this embodiment does not affect the polarization characteristics of the excited ultrasonic signal, but only affects the polarization characteristics of the transmitted ultrasonic signal, and therefore has no negative impact on the excitation of the ultrasonic wave.

[0079] In the second aspect, an embodiment of the present invention provides an ultrasonic excitation method based on quantum geometric phase effect. Based on the above-mentioned ultrasonic excitation system based on quantum geometric phase effect, the ultrasonic excitation method based on quantum geometric phase effect includes: S1. Turn on the excitation control circuit 3 through the control unit 4 of the ultrasonic excitation system based on quantum geometric phase effect, and excite the ultrasonic piezoelectric transducer 1 to emit an ultrasonic signal through the damping substrate 2; S2. Obtain the circuit parameters of the excitation control circuit 3 through the control unit 4; S3. Obtain the polarization direction φ of the ultrasonic signal through the control unit 4 according to the circuit parameters; S4. Determine whether φ is consistent with the preset direction through the control unit 4; S5. If not, adjust the circuit parameters through the control unit 4, and repeat S3; S6. If so, complete the adjustment of φ.

[0080] like Figure 2 As shown, the technical effect of the ultrasonic excitation method based on quantum geometric phase effect in this embodiment is similar to the technical effect of the ultrasonic excitation system based on quantum geometric phase effect in the above-mentioned embodiment, which will not be repeated here.

[0081] In a third aspect, an embodiment of the present invention provides a computer storage medium having a computer program stored thereon, and when the computer program is executed by a processor, the above-mentioned ultrasonic excitation method based on quantum geometric phase effect is implemented.

[0082] The technical effect of the computer storage medium in this embodiment is similar to the technical effect of the ultrasonic excitation method based on quantum geometric phase effect in the above-mentioned embodiment, and will not be repeated here.

[0083] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An ultrasonic excitation system based on quantum geometric phase effect, characterized in that: The invention comprises an ultrasonic piezoelectric transducer (1), a damping substrate (2), an excitation control circuit (3) and a control unit (4), wherein the damping substrate (2) is mounted on the ultrasonic piezoelectric transducer (1), the excitation control circuit (3) is electrically connected to the ultrasonic piezoelectric transducer (1), and the control unit (4) is electrically connected to the excitation control circuit (3) and is used to: Turning on the excitation control circuit (3), exciting the ultrasonic piezoelectric transducer (1) to transmit an ultrasonic signal through the damping substrate (2), and acquiring circuit parameters of the excitation control circuit (3); Acquire the polarization direction φ of the ultrasonic signal according to the circuit parameters, and determine whether the polarization direction φ is consistent with a preset direction; If not, adjusting the circuit parameters, obtaining a new polarization direction of the ultrasonic signal according to the adjusted circuit parameters, and repeating the consistency judgment of φ and the preset direction; If so, the adjustment of φ is completed.

2. The ultrasonic excitation system based on quantum geometric phase effect as claimed in claim 1, characterized in that: The excitation control circuit (3) is a coupled LRC circuit, which includes a first subcircuit and a second subcircuit that are coupled to each other, wherein the circuit parameters of the first subcircuit include a capacitor C1, an inductor L1, and a resistor R1, and the circuit parameters of the second subcircuit include a capacitor C2, an inductor L2, and a resistor R2.

3. The ultrasonic excitation system based on quantum geometric phase effect as claimed in claim 2, characterized in that: The excitation control circuit (3) also has characteristic parameters, and the control unit (4) is specifically used to: Acquiring characteristic parameters of the excitation control circuit (3) according to the circuit parameters; The φ is obtained according to the characteristic parameter.

4. The ultrasonic excitation system based on quantum geometric phase effect as claimed in claim 3, characterized in that: The characteristic parameters include the natural frequency ω of the resonant circuit and the resistance characteristic parameter χ of the resonant circuit, and the ω and the χ are obtained by the following equations: x i =R i Wherein, the i is 1 or 2.

5. The ultrasonic excitation system based on quantum geometric phase effect as claimed in claim 4, characterized in that: The φ, the ω, and the χ satisfy the following equation:

6. The ultrasonic excitation system based on quantum geometric phase effect as claimed in claim 5, characterized in that: The control unit (4) is also used for: The polarization mode of the ultrasonic signal is obtained according to the characteristic parameter and φ, wherein the polarization mode satisfies the formula e is a constant; Determining whether the polarization mode is consistent with a preset mode; If not, adjusting the circuit parameters, obtaining a new polarization mode according to the adjusted circuit parameters, and repeating the consistency determination between the polarization mode and the preset direction; If so, the adjustment of the polarization mode is completed.

7. The ultrasonic excitation system based on quantum geometric phase effect as claimed in claim 6, characterized in that: The characteristic parameters also include the excitation voltage κ of the resonant circuit and the excitation ultrasonic signal frequency β, and the ω, the χ, the κ and the β satisfy the following equivalent relationship: The κ is obtained according to the following equation:

8. The ultrasonic excitation system based on quantum geometric phase effect as claimed in claim 1, characterized in that: The ultrasonic piezoelectric transducer (1) and / or the damping substrate (2) have a resonance characteristic, wherein the resonance characteristic includes at least one of mass, stiffness and damping characteristics, and the process of the control unit (4) adjusting the circuit parameters specifically includes: correcting the circuit parameters according to the resonance characteristic.

9. An ultrasonic excitation method based on quantum geometric phase effect, characterized in that: Based on the ultrasonic excitation system based on quantum geometric phase effect according to any one of claims 1 to 8, the ultrasonic excitation method based on quantum geometric phase effect includes: S1, turning on the excitation control circuit (3) through the control unit (4) of the ultrasonic excitation system based on quantum geometric phase effect, and exciting the ultrasonic piezoelectric transducer (1) to transmit an ultrasonic signal through the damping substrate (2); S2, obtaining circuit parameters of the excitation control circuit (3) through the control unit (4); S3, acquiring the polarization direction φ of the ultrasonic signal according to the circuit parameters and through the control unit (4); S4, judging by the control unit (4) whether the φ is consistent with a preset direction; S5, if not, adjusting the circuit parameters through the control unit (4), and repeating S3; S6. If yes, complete the adjustment of φ.

10. A computer storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the ultrasonic excitation method based on quantum geometric phase effect as claimed in claim 9 is implemented.

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