Intelligent guitar musical instrument
By using a cantilever beam sensor composed of a deformation device and strain gauges in a smart guitar, the problem of insufficient string vibration capture accuracy is solved, and more accurate string vibration detection and force feedback are achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN DALE SENSOR TECH CO LTD
- Filing Date
- 2025-07-28
- Publication Date
- 2026-08-04
AI Technical Summary
Current smart guitars lack the precision to capture string vibrations, resulting in inaccurate sound output.
A cantilever beam sensor is composed of a deformation device and a strain gauge. The strain gauge converts the deformation of the string vibration into an electronic signal, thereby improving the accuracy of capturing the string vibration.
It improves the accuracy of the smart guitar in capturing string vibrations, ensuring accurate sound output and dynamic feedback.
Smart Images
Figure CN224595251U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of musical instrument technology, and in particular to an intelligent guitar musical instrument. Background Technology
[0002] During performance, a smart guitar outputs sound by capturing the vibrations of the strings and converting them into electrical signals. These signals are then amplified after calculation and analysis and played back through a speaker. Precise capture of the string vibrations is crucial for ensuring this process runs smoothly. Utility Model Content
[0003] The purpose of this invention is to propose an intelligent guitar musical instrument that improves the accuracy of capturing string vibrations in an intelligent guitar.
[0004] To achieve the above objectives, the present invention adopts the following technical solution:
[0005] A smart guitar instrument, comprising:
[0006] The instrument body, strings, strain gauges, and deformation device;
[0007] The deformation device is positioned below the string, and the strain gauge is positioned at the corresponding position of the deformation device or around the corresponding position of the deformation device; the deformation device and the strain gauge form a cantilever beam sensor.
[0008] The deformation device is used to capture the vibration of the strings and generate corresponding deformation;
[0009] The strain gauge is used to convert the deformation of the deformation device into an electronic signal, which reflects the amplitude and frequency of the string vibration.
[0010] Preferably, the number of strain gauges is 6, which are arranged side by side at the corresponding position of the deformation position of the deformation device or around the corresponding position of the deformation position.
[0011] Preferably, the deformation position includes a groove on the deformation device.
[0012] Preferably, the intelligent guitar instrument includes a tension beam; one end of the string is fixed to the end of the deformation module of the deformation device via the tension beam.
[0013] Preferably, the deformation position is spaced apart from each string.
[0014] Preferably, the deformation modules of the deformation device are arranged in a spaced-out strip shape, and the deformation modules are connected to the body of the deformation device to form an integral structure.
[0015] Preferably, the strain gauge is disposed below the tensioning beam.
[0016] Preferably, the smart guitar instrument includes a string cover, the string cover having a groove, and a silicone strip placed in the groove.
[0017] Preferably, the strain gauge includes a metal foil strain gauge, a semiconductor strain gauge, an optical fiber strain gauge, or a piezoelectric strain gauge.
[0018] Preferably, the deformation device is connected to the instrument body via a hole connection or adhesive bonding.
[0019] Compared with the prior art, in this embodiment of the invention, the intelligent guitar instrument may include: a guitar body, strings, strain gauges, and a deformation device; the deformation device is disposed below the strings, and the strain gauges are disposed at the corresponding positions of the deformation positions of the deformation device or around the corresponding positions of the deformation positions; the deformation positions of the deformation device and the strain gauges form a cantilever beam sensor; the deformation device is used to capture the vibration of the strings and generate corresponding deformation; the strain gauges are used to convert the deformation of the deformation device into electronic signals, and the electronic signals reflect the amplitude and frequency of the string vibration; the sound is presented through the speaker of the intelligent guitar. The use of the guitar strain gauges improves the accuracy of the intelligent guitar in capturing string vibrations, or more precisely, improves the feedback of the vibration amplitude and the force of plucking the strings. Attached Figure Description
[0020] The above and other objects, features, and advantages of exemplary embodiments of the present disclosure will become readily apparent upon reading the following detailed description with reference to the accompanying drawings. In the drawings, several embodiments of the present disclosure are illustrated by way of example and not limitation, and like or corresponding reference numerals denote like or corresponding parts, wherein:
[0021] Figure 1 This is an exploded view of an intelligent guitar musical instrument proposed in this utility model;
[0022] Figure 2 This is a schematic diagram of a deformation device proposed in this utility model;
[0023] Figure 3 This is a schematic diagram of a deformation device proposed in this utility model;
[0024] Figure 4 This is a schematic diagram of a deformation device proposed in this utility model;
[0025] Figure 5 This is a schematic diagram of an intelligent guitar musical instrument proposed in this utility model;
[0026] Figure 6 The present utility model proposes Figure 5 A magnified view of point A in the diagram;
[0027] Figure 7 The present utility model proposes Figure 5 A magnified view of point B in the diagram. Detailed Implementation
[0028] The technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this disclosure. All other embodiments obtained by those skilled in the art based on the embodiments of this disclosure without creative effort are within the scope of protection of this disclosure.
[0029] The specific embodiments of this disclosure will now be described in detail with reference to the accompanying drawings.
[0030] Reference Figure 1 The diagram shows a schematic representation of an intelligent guitar musical instrument according to an embodiment of the present invention, comprising:
[0031] The instrument body 11, strings 12, strain gauges 14, and deformation device 13;
[0032] In a further embodiment of this utility model, the deformation device 13 is disposed below the string 12, and the strain gauge 14 is disposed at the corresponding position of the deformation position 15 of the deformation device 13 or around the corresponding position of the deformation position 15; the deformation position 15 of the deformation device 13 and the strain gauge 14 form a cantilever beam sensor; the deformation device 13 is connected to the body 11 of the instrument by means of a hole connection or adhesive bonding;
[0033] From a functional perspective, the deformation device 13 is used to capture the vibration of the string 12 and generate corresponding deformation; first, the deformation device 13 is detected, and then the deformation is sensed by the strain gauge and an electrical signal is output.
[0034] In a specific embodiment of this utility model, the strain gauge 14 is used to convert the deformation of the deformation device 13 into an electronic signal, which reflects the amplitude and frequency of the vibration of the string 12.
[0035] Specifically, in this embodiment of the invention, the strain gauge 14 is a sensor capable of detecting minute deformations of an object. When it is attached to the deformation device 13 below the guitar string 12, it can accurately capture the minute deformations of the string 12 during vibration. This deformation is then converted into electrical signals containing detailed information about the string 12's vibration, such as amplitude and frequency. Through high-precision calculation and analysis, these signals are further processed and amplified, and finally presented as sound through the smart guitar's speaker.
[0036] Specifically, the number of strain gauges 14 can be 6, arranged side by side at the corresponding position of the deformation position 15 of the deformation device 13 or around the corresponding position of the deformation position 15. Further, they can be configured as a group of two side by side, a group of three, a group of four respectively located in the top, bottom, left and right, a group of six, etc. In another embodiment, the technical effect of this application is achieved by replacing the deformation position 15 with a cantilever beam.
[0037] like Figures 2 to 4 As shown, the deformation position 15 includes a groove on the deformation device 13. The function of setting the deformation position 15 on the deformation module is to facilitate better capture of the vibration of the string 12. The position of the deformation position 15 on the deformation module can be set, and the size of the deformation position 15 can be set. Generally speaking, the larger the deformation position 15 and the thinner the hole wall, the higher the accuracy of vibration capture. For specific details, refer to the principle of the cantilever beam sensor. The deformation position 15 can be of various shapes. This embodiment of the utility model does not impose too many restrictions on this. Furthermore, the deformation position 15 can also be as follows: Figure 6 The groove design allows for thinning of the deformable area, and even the use of plastic parts alone, in order to more accurately capture vibration deformation.
[0038] Specifically, such as Figures 2 to 4 As shown, the deformation positions 15 are spaced apart from each string 12. The deformation modules of the deformation device 13 are arranged in a spaced-out strip shape, and the deformation modules are connected to the body of the deformation device 13 to form an integral structure. The strain gauge 14 is disposed below the tension beam 16.
[0039] like Figure 5 and Figure 6 As shown, the intelligent guitar instrument includes a tension beam 16; one end of the string 12 is fixed to the end of the deformation module of the deformation device 13 via the tension beam 16. The tension beam 16 and the deformation module are individually set for each string 12 to ensure the spacing, such as... Figure 2 In the schematic diagram of the deformation module shown, the deformation module corresponding to each string 12 can be a separately set strip structure. The width and length of the strip structure can be set according to the actual situation. This utility model embodiment does not impose too many restrictions on this, which can effectively avoid mutual interference between the vibration sounds of the strings 12.
[0040] like Figure 1As shown, strain gauge 14 is disposed on the outside of the deformation module at a position corresponding to or around the deformation position 15. The strain gauge 14 can be a metal foil strain gauge or a semiconductor strain gauge. When the string 12 vibrates, the deformation module undergoes a slight deformation, which causes a change in the resistance on the strain gauge 14. Based on the principle of elastic deformation and the strain effect, this change in resistance can accurately reflect the amplitude and frequency of the string 12 vibration, thereby detecting the magnitude of the force applied to pluck the string.
[0041] like Figure 5 and Figure 7 As shown, the smart guitar instrument includes a string cover 17, on which a strip groove is provided, and a silicone strip 18 is placed on the strip groove.
[0042] In one implementation principle description of this utility model, the deformation device 13 can be combined with the strain gauge 14 to form a cantilever beam sensor. The working principle of the cantilever beam sensor is mainly based on the elastic deformation of the cantilever beam (deformation device 13) and the resistance change of the strain gauge 14. The following is a detailed description of its working principle:
[0043] A cantilever beam sensor consists of an elastic element (usually a metal beam) fixed at one end and loaded with force at the other. When an external force is applied to the free end of the cantilever beam, the beam undergoes elastic deformation, i.e., bending. This deformation is non-uniform, with the maximum strain typically occurring near the beam's neutral axis.
[0044] In the strain region of the cantilever beam (usually near the beam's neutral axis), resistance strain gauges 14 are attached. Strain gauge 14 is a sensitive resistive element whose resistance changes with deformation. When the cantilever beam bends, strain gauge 14 also deforms, causing its resistance to increase or decrease.
[0045] The change in the resistance of strain gauge 14 is converted into an electrical signal, a process typically achieved using a Wheatstone bridge circuit. A Wheatstone bridge is a circuit consisting of four resistors; when the bridge is balanced, the output voltage is zero. When the cantilever beam is subjected to an external force causing a change in the resistance of strain gauge 14, the bridge becomes unbalanced, and the output voltage changes.
[0046] The minute voltage signal output from a bridge circuit typically requires amplification, filtering, and linearization to obtain an accurate electrical signal. This process is performed by a signal conditioning circuit. The processed signal can be represented as the magnitude of the force applied to the cantilever beam. Finally, the signal can be output in analog or digital form for use by subsequent measurement and control equipment.
[0047] In a preferred embodiment of this invention, the strain gauge 14 may include a thin-film pressure sensor. The working principle of the thin-film pressure sensor is mainly based on the piezoresistive effect, strain sensing characteristics, or piezoelectric effect of the thin-film material. The core component of the thin-film pressure sensor is an elastic thin film, typically made of metal (such as stainless steel) or polymer material. When external pressure is applied to the surface of the thin film, the film undergoes slight deformation, resulting in a change in the resistance value of the film. This change in resistance is proportional to the applied pressure; by measuring the change in resistance, the magnitude of the pressure can be determined.
[0048] In this embodiment of the invention, the intelligent guitar instrument may include: a body 11, strings 12, strain gauges 14, and a deformation device 13; the deformation device 13 is disposed below the strings 12, and the strain gauges 14 are disposed at the corresponding positions of the deformation positions 15 of the deformation device 13 or around the corresponding positions of the deformation positions 15; the deformation device 13 is used to capture the vibration of the strings 12 and generate corresponding deformation; the strain gauges 14 are used to convert the deformation of the deformation device 13 into electronic signals, the electronic signals reflecting the amplitude and frequency of the vibration of the strings 12; the sound is presented through the speaker of the intelligent guitar, and the use of the guitar strain gauges improves the accuracy of the intelligent guitar in capturing string vibrations.
[0049] In the foregoing description of this specification, unless otherwise expressly specified and limited, the terms "fixed," "installed," "connected," or "joined" should be interpreted broadly. For example, the term "joined" can refer to a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; or it can refer to the internal communication of two components or the interaction between two components. Therefore, unless otherwise expressly limited in this specification, those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0050] Based on the above description in this specification, those skilled in the art will also understand that terms used, such as "upper," "lower," "front," "rear," "left," "right," "length," "width," "thickness," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," "circumferential," "center," "longitudinal," "transverse," "clockwise," or "counterclockwise," are terms indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings of this specification. They are only for the purpose of facilitating the explanation of the present invention and simplifying the description, and do not imply that the device or element involved must have the specific orientation, or be constructed and operated in a specific orientation. Therefore, the above-mentioned orientation or positional relationship terms should not be understood or interpreted as limitations on the present invention.
[0051] Furthermore, the terms "first" or "second," etc., used in this specification to refer to numbers or ordinal numbers are for descriptive purposes only and should not be construed as indicating, explicitly or implicitly, relative importance or specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this specification, "a plurality of" means at least two, such as two, three, or more, unless otherwise explicitly specified.
[0052] While this specification has shown and described various embodiments of the present invention, it will be apparent to those skilled in the art that such embodiments are provided by way of example only. Many modifications, alterations, and alternatives will occur to those skilled in the art without departing from the spirit and essence of the present invention. It should be understood that various alternatives to the embodiments of the present invention described herein may be employed in the practice of the present invention. The appended claims are intended to define the scope of protection of the present invention and therefore cover the modular compositions, equivalents, or alternatives within the scope of these claims.
Claims
1. An intelligent guitar musical instrument, characterized by, include: The instrument body, strings, strain gauges, and deformation device; The deformation device is located below the string, and the strain gauge is located at the corresponding position of the deformation position of the deformation device or around the corresponding position of the deformation position. The deformation device and strain gauge form a cantilever beam sensor; The deformation device is used to capture the vibration of the strings and generate corresponding deformation; The strain gauge is used to convert the deformation of the deformation device into an electronic signal, which reflects the amplitude and frequency of the string vibration.
2. The smart guitar instrument of claim 1, wherein, The strain gauges are in the form of 6 gauges, which are arranged side by side at the corresponding positions of the deformation positions of the deformation device or around the corresponding positions of the deformation positions.
3. The smart guitar instrument of claim 1, wherein, The deformation position includes a groove on the deformation device.
4. The smart guitar instrument of claim 1, wherein, The intelligent guitar instrument includes a tension beam; one end of the string is fixed to the end of the deformation module of the deformation device via the tension beam.
5. The smart guitar instrument of claim 1, wherein, The deformation positions are spaced apart from each string.
6. The smart guitar instrument of claim 1, wherein, The deformation modules of the deformation device are arranged in a spaced strip shape, and the deformation modules are connected to the body of the deformation device to form an integral structure.
7. The smart guitar instrument of claim 4, wherein, The strain gauge is positioned below the tensioning beam.
8. The smart guitar instrument of claim 1, wherein, The smart guitar instrument includes a string cover with a groove on it, and a silicone strip is placed in the groove.
9. The smart guitar instrument of claim 1, wherein, The strain gauge includes a metal foil strain gauge, a semiconductor strain gauge, an optical fiber strain gauge, or a piezoelectric strain gauge.
10. The smart guitar instrument of claim 1, wherein, The deformation device is connected to the body of the instrument by means of hole connection or adhesive bonding.