WO2020220148A1 - Sensor capsule for sensing the polarisation of waves propagated in the strings of stringed musical instruments - Google Patents

Sensor capsule for sensing the polarisation of waves propagated in the strings of stringed musical instruments Download PDF

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Publication number
WO2020220148A1
WO2020220148A1 PCT/CL2020/050047 CL2020050047W WO2020220148A1 WO 2020220148 A1 WO2020220148 A1 WO 2020220148A1 CL 2020050047 W CL2020050047 W CL 2020050047W WO 2020220148 A1 WO2020220148 A1 WO 2020220148A1
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WIPO (PCT)
Prior art keywords
string
strings
quadrants
instrument
stringed musical
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PCT/CL2020/050047
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Spanish (es)
French (fr)
Inventor
Christian Antonio ORELLANA GÓMEZ
Alejandro René ROLDÁN MOLINA
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Universidad Técnica Federico Santa María
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Publication of WO2020220148A1 publication Critical patent/WO2020220148A1/en

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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
    • G01H11/00—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by detecting changes in electric or magnetic properties
    • G01H11/06—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by detecting changes in electric or magnetic properties by electric means
    • G01H11/08—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by detecting changes in electric or magnetic properties by electric means using piezoelectric devices
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
    • G10H3/00—Instruments in which the tones are generated by electromechanical means
    • G10H3/12—Instruments in which the tones are generated by electromechanical means using mechanical resonant generators, e.g. strings or percussive instruments, the tones of which are picked up by electromechanical transducers, the electrical signals being further manipulated or amplified and subsequently converted to sound by a loudspeaker or equivalent instrument
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
    • G10H3/00—Instruments in which the tones are generated by electromechanical means
    • G10H3/12—Instruments in which the tones are generated by electromechanical means using mechanical resonant generators, e.g. strings or percussive instruments, the tones of which are picked up by electromechanical transducers, the electrical signals being further manipulated or amplified and subsequently converted to sound by a loudspeaker or equivalent instrument
    • G10H3/14—Instruments in which the tones are generated by electromechanical means using mechanical resonant generators, e.g. strings or percussive instruments, the tones of which are picked up by electromechanical transducers, the electrical signals being further manipulated or amplified and subsequently converted to sound by a loudspeaker or equivalent instrument using mechanically actuated vibrators with pick-up means
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
    • G10H3/00—Instruments in which the tones are generated by electromechanical means
    • G10H3/12—Instruments in which the tones are generated by electromechanical means using mechanical resonant generators, e.g. strings or percussive instruments, the tones of which are picked up by electromechanical transducers, the electrical signals being further manipulated or amplified and subsequently converted to sound by a loudspeaker or equivalent instrument
    • G10H3/14—Instruments in which the tones are generated by electromechanical means using mechanical resonant generators, e.g. strings or percussive instruments, the tones of which are picked up by electromechanical transducers, the electrical signals being further manipulated or amplified and subsequently converted to sound by a loudspeaker or equivalent instrument using mechanically actuated vibrators with pick-up means
    • G10H3/18—Instruments in which the tones are generated by electromechanical means using mechanical resonant generators, e.g. strings or percussive instruments, the tones of which are picked up by electromechanical transducers, the electrical signals being further manipulated or amplified and subsequently converted to sound by a loudspeaker or equivalent instrument using mechanically actuated vibrators with pick-up means using a string, e.g. electric guitar

Definitions

  • the present invention relates to a detector capsule for detecting the state of polarization of the strings in musical instruments.
  • detector capsules convert the sound coming from the vibrations of the string into an electrical signal of equal frequency and proportional to the amplitude of the vibration.
  • the waves that propagate in a string are transverse, that is, the movement of this occurs in a direction perpendicular to the propagation of the wave.
  • the amplitude and frequency of the vibration can be varied, at will by the interpreter, through plucking or strumming and by placing the fingers on the eyebrows and thus producing the melodies and / or chords.
  • An objective of the invention is to have a detector capsule to detect the polarization of the waves that propagate in the strings of stringed musical instruments, comprising: For each string of the stringed musical instrument, the detector capsule is constituted by a disk piezoelectric divided into four quadrants, which supports the respective string as the bridge of the stringed musical instrument; When the string vibrates, the piezoelectric disk deforms, producing four electrical signals from from each of the quadrants, where the electrical signals from each of the opposite quadrants are subtracted by two differential amplifiers, thereby obtaining two output signals proportional to the polarization plane of the string; and for each string of the stringed musical instrument, the detector capsule is made up of a cylinder that supports the piezoelectric disk divided into four quadrant, which has a base or grinding wheel attached to its surface which acts as a bridge for the respective string; the outputs of the electrical signals coming from each of the piezoelectric quadrants are connected to the differential amplifiers near their common ground point.
  • the vibration of said string can be separated into two components, of equal frequency that differ in their amplitude according to the direction of the strum or plucking.
  • the two output signals of each string can be processed and / or distorted with the help of auxiliary equipment, and thus the intention of the dot or strum in one direction more than the other, thereby controlling the distortion of the signal. from each string without using pedals or other auxiliary devices.
  • the interpreter has control of the effects and / or distortion of the sound coming from the instrument on the strings and with this he can expand the possibilities in his musical interpretation.
  • Figure 1 illustrates a diagram of a detector capsule of the invention together with the electrical connections.
  • Figure 2 is a view of the parts of the detector capsule.
  • Figure 3 illustrates a side view of the detector capsule.
  • Figure 4 illustrates a view of the detector capsules on a string instrument.
  • Figure 5 illustrates an arrangement side view of the detector capsule arranged on a string instrument. Detailed description of a preferred embodiment
  • the present invention corresponds to a detector capsule (100) to detect the polarization of the waves that propagate in the strings (40) of stringed musical instruments in order to give effects and / or distortion to the sound from the same plucking or strumming the string (40).
  • the waves that propagate in the strings (40) are transverse waves and have the property called polarization, which corresponds to the plane through which the string (40) vibrates. This plane of polarization can be defined according to the plucking direction of the string (40). And it can be used to give distortions and / or preset effects to the sound of the string (40) from the same plucking or strumming of the string (40).
  • the detector capsule (100) is constituted by a piezoelectric disk (10) with four quadrants (20), which supports the respective string (40) as the bridge of the instrument.
  • the piezoelectric disk (10) deforms, producing four electrical signals.
  • the electrical signals coming from the opposite quadrants (20) when subtracted by two differential amplifiers (50) and (60), two output signals proportional to the plane of polarization of the string (40) are obtained.
  • the vibration of said string (40) can be separated into two components, of equal frequency that differ in their amplitude according to the direction of the strum or plucking.
  • the pair of output signals of each string (40) can be treated and / or distorted with the help of auxiliary equipment, and thus the intention of the dot or strum in one direction more than the other, with which you can control the distortion of the signal coming from each string (40) without using pedals or other auxiliary devices.
  • the interpreter has control of the effects and / or distortion of the sound coming from the instrument on the same strings (40) and with this he can expand the possibilities in his musical interpretation.
  • the detector capsule (100) is made up of a cylinder (90) that supports a piezoelectric disk (10) divided into four quadrant (20), which has a base or base attached to its surface. grinding wheel (30) which acts as a bridge of the respective chord (40).
  • the electrical outputs of the piezoelectric quadrants (20) are connected to the differential amplifiers (50) and (60) together with their common ground point (70).

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • General Physics & Mathematics (AREA)
  • Electrophonic Musical Instruments (AREA)

Abstract

The present invention relates to a sensing capsule for sensing the polarisation of the waves propagated in the strings of stringed musical instruments, in order to provide effects and/or distortion to the sound from the plucking or strumming of the string.

Description

UNA CÁPSULA DETECTORA PARA DETECTAR LA POLARIZACIÓN DE LAS ONDAS QUE SE PROPAGAN EN LAS CUERDAS DE INSTRUMENTOS A DETECTOR CAPSULE TO DETECT THE POLARIZATION OF THE WAVES PROPAGING IN THE INSTRUMENT STRINGS
MUSICALES DE CUERDAS STRING MUSICAL
Campo de aplicación Scope
La presente invención se refiere a una capsula detectora para detectar el estado de polarización de las cuerdas en instrumentos musicales. The present invention relates to a detector capsule for detecting the state of polarization of the strings in musical instruments.
Descripción del arte previo Description of prior art
La necesidad de amplificar los instrumentos de cuerda nació durante las décadas de los 30’ y 40’ del siglo pasado, con la masticación de las grandes bandas musicales, en las cuales, instrumentos como la guitarra carecían de suficiente presencia en comparación al resto de la orquesta. Con el objeto de superar dicha carencia, se han diseñado diferentes dispositivos destinados a transformar las vibraciones mecánicas en impulsos eléctricos, los cuales son amplificados posteriormente. Estos dispositivos se conocen comúnmente con el nombre de cápsulas, pastillas o pickups. El primer tipo de cápsula que surge en el mercado instrumental es la patente de invención US2455575 de fecha 07.12.1948 de Leo Fender y otros, titulada“Pickup unit for stringed Instruments”, que describe una cápsula que se basa en la detección del campo electromagnético generado por una cuerda metálica al vibrar, estas se caracterizan por tener un bobinado simple que proporciona una sonoridad brillante y definida, aunque generan un ruido o zumbido característico de fondo. The need to amplify string instruments was born during the 30s and 40s of the last century, with the chewing of the great musical bands, in which instruments such as the guitar lacked sufficient presence compared to the rest of the world. orchestra. In order to overcome this deficiency, different devices have been designed to transform mechanical vibrations into electrical impulses, which are subsequently amplified. These devices are commonly known as capsules, tablets, or pickups. The first type of capsule to emerge on the instrumental market is the invention patent US2455575 dated 12/07/1948 by Leo Fender and others, entitled “Pickup unit for stringed Instruments”, which describes a capsule that is based on the detection of the electromagnetic field. generated by a vibrating metal string, these are characterized by having a simple winding that provides a bright and defined sound, although they generate a characteristic background noise or hum.
La patente de invención US2896491 de fecha 28.07.1959, de Lover Seth, titulada “Magnetic pickup for stringed musical instrument”, que presenta un bobinado doble que cancela el zumbido de fondo y otorgan un sonido más potente, cálido y un tanto pastoso resaltando las frecuencias medias del instrumento. Invention patent US2896491 dated 07.28.1959, by Lover Seth, entitled "Magnetic pickup for stringed musical instrument", which presents a double winding that cancels the background hum and gives a more powerful, warm and somewhat doughy sound highlighting the medium frequencies of the instrument.
La patente de invención US3453920 de fecha 08.07.1961 , de Scherer Robert, titulada“Piezo Guitar Bridge Pickup”, describe una cápsula para guitarra que emplea dos piezoeléctricos interconectados para proporcionar transductores de respuesta piezoeléctrica de junta cero ubicados debajo del soporte de cada cuerda para dar una respuesta cero a las vibraciones verticales y una respuesta normal a las vibraciones horizontales. Invention patent US3453920 dated 07.08.1961, by Scherer Robert, entitled “Piezo Guitar Bridge Pickup”, describes a guitar pickup that employs two interconnected piezoelectrics to provide zero-junction piezoelectric response transducers located under the support of each string to give a zero response to vertical vibrations and a normal response to horizontal vibrations.
La Patente de invención US6392137B1 , de fecha 21 .05.2002, de Isvan Osman, titulada “Polyphonic guitar pickup for sensing string vibrations in two mutually perpendicular planes”, describe un capsula detectora de bobina doble para cada cuerda, que detecta las compontes perpendicular y trasversal de la cuerda con el fin de reducir el efecto de vibraciones adyacentes a través de la sustracción y adición de las señales de las bobinas. Invention Patent US6392137B1, dated 05.21.2002, by Isvan Osman, entitled "Polyphonic guitar pickup for sensing string vibrations in two mutually perpendicular planes", describes a dual coil detector capsule for each string, which detects the perpendicular and transverse components of the string in order to reduce the effect of adjacent vibrations through the subtraction and addition of the signals from the coils.
En los instrumentos de cuerda, las capsulas detectoras convierten el sonido proveniente de las vibraciones de la cuerda en una señal eléctrica de igual frecuencia y proporcional a la amplitud de la vibración. Las ondas que se propagan en una cuerda son transversales, es decir el movimiento de esta ocurre en una dirección perpendicular a la propagación de la onda. La amplitud y frecuencia de la vibración pueden ser variadas, a voluntad por el intérprete, a través de punteo o rasgueo y en posición de los dedos en los cejillos y así producir las melodías y/o acordes. In stringed instruments, detector capsules convert the sound coming from the vibrations of the string into an electrical signal of equal frequency and proportional to the amplitude of the vibration. The waves that propagate in a string are transverse, that is, the movement of this occurs in a direction perpendicular to the propagation of the wave. The amplitude and frequency of the vibration can be varied, at will by the interpreter, through plucking or strumming and by placing the fingers on the eyebrows and thus producing the melodies and / or chords.
Ninguno de los documentos citados describe una detección del estado de polarización mediante un transductor piezoeléctrico de cuatro cuadrantes, sin necesidad de bobinas, y también con núcleo ferromagnético que permite el uso de los compontes detectadas de la vibración, tanto, perpendiculares como trasversales, de modo que sean es aprovechadas por el intérprete musical para expandir sus posibilidades interpretativas. None of the cited documents describes a detection of the polarization state by means of a four quadrant piezoelectric transducer, without the need for coils, and also with a ferromagnetic core that allows the use of the detected components of the vibration, both perpendicular and transversal, so that they are is used by the musical interpreter to expand their interpretive possibilities.
Resumen de la invención Summary of the invention
Un objetivo de la invención es disponer de una capsula detectora para detectar la polarización de las ondas que se propagan en las cuerdas de instrumentos musicales de cuerdas, que comprende: Para cada cuerda del instrumento musical de cuerdas, la capsula detectora está constituido por un disco piezoeléctrico dividido en cuatro cuadrantes, que sostiene la respectiva cuerda como puente del instrumento musical de cuerdas; al vibrar la cuerda el disco piezoeléctrico se deforma, produciéndose cuatro señales eléctricas provenientes de cada una de los cuadrantes, en donde las señales eléctricas provenientes de cada una de los cuadrantes opuestos, son restadas mediante dos amplificadores diferenciales, con lo cual se obtienen dos señales de salida proporcionales al plano de polarización de la cuerda; y para cada cuerda del instrumento musical de cuerdas, la capsula detectora, está constituido por un cilindro que sostiene el disco piezoeléctrico dividido en cuatro cuadrante, el cual tiene adosado en su superficie una base o muela la cual actúa como puente de la respectiva cuerda; las salidas de las señales eléctricas provenientes de cada una de los cuadrantes del piezoeléctrico están conectadas a los amplificadores diferenciales junto a su punto de tierra común. Además, la vibración de dicha cuerda puede ser separada en dos componentes, de igual frecuencia que difieren en su amplitud según la dirección del rasgueo o punteo. Y las dos señales de salida de cada cuerda pueden ser tratadas y/o distorsionadas con ayuda de equipos auxiliares, y de este modo la intención del punto o rasgueo en cierta dirección más que la otra, con lo cual puede controlar la distorsión de la señal proveniente de cada cuerda sin necesidad de utilizar pedales u otros dispositivos auxiliares. Así el intérprete tiene en las cuerdas el control de los efectos y/o distorsión del sonido proveniente del instrumento y con esto puede expandir las posibilidades en su interpretación musical. An objective of the invention is to have a detector capsule to detect the polarization of the waves that propagate in the strings of stringed musical instruments, comprising: For each string of the stringed musical instrument, the detector capsule is constituted by a disk piezoelectric divided into four quadrants, which supports the respective string as the bridge of the stringed musical instrument; When the string vibrates, the piezoelectric disk deforms, producing four electrical signals from from each of the quadrants, where the electrical signals from each of the opposite quadrants are subtracted by two differential amplifiers, thereby obtaining two output signals proportional to the polarization plane of the string; and for each string of the stringed musical instrument, the detector capsule is made up of a cylinder that supports the piezoelectric disk divided into four quadrant, which has a base or grinding wheel attached to its surface which acts as a bridge for the respective string; the outputs of the electrical signals coming from each of the piezoelectric quadrants are connected to the differential amplifiers near their common ground point. Furthermore, the vibration of said string can be separated into two components, of equal frequency that differ in their amplitude according to the direction of the strum or plucking. And the two output signals of each string can be processed and / or distorted with the help of auxiliary equipment, and thus the intention of the dot or strum in one direction more than the other, thereby controlling the distortion of the signal. from each string without using pedals or other auxiliary devices. Thus, the interpreter has control of the effects and / or distortion of the sound coming from the instrument on the strings and with this he can expand the possibilities in his musical interpretation.
Breve descripción de las figuras Brief description of the figures
La figura 1 ilustra un esquema de una capsula detectora de la invención junto a las conexiones eléctricas. Figure 1 illustrates a diagram of a detector capsule of the invention together with the electrical connections.
La figura 2 una vista de las partes de la capsula detectora. Figure 2 is a view of the parts of the detector capsule.
La figura 3 ilustra una vista lateral de la capsula detectora. Figure 3 illustrates a side view of the detector capsule.
La figura 4 ilustra una vista de las capsulas detectoras en un instrumento de cuerda. Figure 4 illustrates a view of the detector capsules on a string instrument.
La figura 5 ilustra una vista lateral de disposición de la capsula detectora dispuesta en un instrumento de cuerda. Descripción detallada de una realización preferida Figure 5 illustrates an arrangement side view of the detector capsule arranged on a string instrument. Detailed description of a preferred embodiment
La presente invención corresponde a una capsula detectora (100) para detectar la polarización de las ondas que se propagan en las cuerdas (40) de los instrumentos musicales de cuerdas con la finalidad de otorgar efectos y/o distorsión al sonido desde el mismo punteo o rasgueo de la cuerda (40). Las ondas que se propagan en las cuerdas (40) son ondas transversales y presentan la propiedad denominada polarización, que corresponde al plano por el cual vibra la cuerda (40). Este plano de polarización puede ser definido según la dirección del punteo de la cuerda (40). Y puede ser usado para otorgar distorsiones y/o efectos preestablecido al sonido de la cuerda (40) desde el mismo punteo o rasgueo de la cuerda (40). The present invention corresponds to a detector capsule (100) to detect the polarization of the waves that propagate in the strings (40) of stringed musical instruments in order to give effects and / or distortion to the sound from the same plucking or strumming the string (40). The waves that propagate in the strings (40) are transverse waves and have the property called polarization, which corresponds to the plane through which the string (40) vibrates. This plane of polarization can be defined according to the plucking direction of the string (40). And it can be used to give distortions and / or preset effects to the sound of the string (40) from the same plucking or strumming of the string (40).
Para cada cuerda (40) del instrumento, la capsula detectora (100) está constituido por un disco piezoeléctrico (10) de cuatro cuadrantes (20), que sostiene la respectiva cuerda (40) como puente del instrumento. Al vibrar la cuerda (40) el disco piezoeléctrico (10) se deforma, produciéndose cuatro señales eléctricas. Las señales eléctricas provenientes de los cuadrantes (20) opuestos, al ser restadas mediante dos amplificadores diferenciales (50) y (60), se obtienen dos señales de salida proporcionales al plano de polarización de la cuerda (40). Con lo cual la vibración de dicha cuerda (40) puede ser separada en dos componentes, de igual frecuencia que difieren en su amplitud según la dirección del rasgueo o punteo. El par de señales de salida de cada cuerda (40) pueden ser tratadas y/o distorsionadas con ayuda de equipos auxiliares, y de este modo la intención del punto o rasgueo en cierta dirección más que la otra, con lo cual puede controlar la distorsión de la señal proveniente de cada cuerda (40) sin necesidad de utilizar pedales u otros dispositivos auxiliares. De esta forma el intérprete tiene en las mismas cuerdas (40) el control de los efectos y/o distorsión del sonido proveniente del instrumento y con esto puede expandir las posibilidades en su interpretación musical. Para cada cuerda (40) del instrumento, la capsula detectora (100), está constituido por un cilindro (90) que sostiene un disco piezoeléctrico (10) dividido en cuatro cuadrante (20), el cual tiene adosado en su superficie una base o muela (30) la cual actúa como puente de la respectiva cuerda (40). Las salidas eléctricas de los cuadrantes del piezoeléctrico (20) están conectadas a los amplificadores diferenciales (50) y (60) junto a su punto de tierra común (70). For each string (40) of the instrument, the detector capsule (100) is constituted by a piezoelectric disk (10) with four quadrants (20), which supports the respective string (40) as the bridge of the instrument. When the string (40) vibrates, the piezoelectric disk (10) deforms, producing four electrical signals. The electrical signals coming from the opposite quadrants (20), when subtracted by two differential amplifiers (50) and (60), two output signals proportional to the plane of polarization of the string (40) are obtained. With which the vibration of said string (40) can be separated into two components, of equal frequency that differ in their amplitude according to the direction of the strum or plucking. The pair of output signals of each string (40) can be treated and / or distorted with the help of auxiliary equipment, and thus the intention of the dot or strum in one direction more than the other, with which you can control the distortion of the signal coming from each string (40) without using pedals or other auxiliary devices. In this way, the interpreter has control of the effects and / or distortion of the sound coming from the instrument on the same strings (40) and with this he can expand the possibilities in his musical interpretation. For each string (40) of the instrument, the detector capsule (100) is made up of a cylinder (90) that supports a piezoelectric disk (10) divided into four quadrant (20), which has a base or base attached to its surface. grinding wheel (30) which acts as a bridge of the respective chord (40). The electrical outputs of the piezoelectric quadrants (20) are connected to the differential amplifiers (50) and (60) together with their common ground point (70).

Claims

REIVINDICACIONES
1. Una capsula detectora (100) para detectar la polarización de las ondas que se propagan en las cuerdas (40) de instrumentos musicales de cuerdas, CARACTERIZADA porque comprende: 1. A detector capsule (100) to detect the polarization of the waves that propagate in the strings (40) of stringed musical instruments, CHARACTERIZED because it comprises:
Para cada cuerda (10) del instrumento musical de cuerdas (40), la capsula detectora (100) está constituido por un disco piezoeléctrico (10) dividido en cuatro cuadrantes (20), que sostiene la respectiva cuerda (40) como puente del instrumento musical de cuerdas (40); For each string (10) of the stringed musical instrument (40), the detector capsule (100) is made up of a piezoelectric disk (10) divided into four quadrants (20), which supports the respective string (40) as the bridge of the instrument. string musical (40);
Al vibrar la cuerda (40) el disco piezoeléctrico (10) se deforma, produciéndose cuatro señales eléctricas provenientes de cada una de los cuadrantes (20), en donde las señales eléctricas provenientes de cada una de los cuadrantes (20) opuestos, son restadas mediante dos amplificadores diferenciales (50) y (60), con lo cual se obtienen dos señales de salida proporcionales al plano de polarización de la cuerda (40); y When the string (40) vibrates, the piezoelectric disk (10) is deformed, producing four electrical signals from each of the quadrants (20), where the electrical signals from each of the opposite quadrants (20) are subtracted by means of two differential amplifiers (50) and (60), with which two output signals proportional to the plane of polarization of the string (40) are obtained; Y
Para cada cuerda (40) del instrumento musical de cuerdas (40), la capsula detectora (100), está constituido por un cilindro (90) que sostiene el disco piezoeléctrico (10) dividido en cuatro cuadrante (20), el cual tiene adosado en su superficie una base o muela (30) la cual actúa como puente de la respectiva cuerda (40); las salidas de las señales eléctricas provenientes de cada una de los cuadrantes del piezoeléctrico (10) están conectadas a los amplificadores diferenciales (50) y (60) junto a su punto de tierra común (70). For each string (40) of the stringed musical instrument (40), the detector capsule (100) is made up of a cylinder (90) that supports the piezoelectric disk (10) divided into four quadrant (20), which has attached on its surface a base or grinding wheel (30) which acts as a bridge for the respective chord (40); the outputs of the electrical signals from each of the piezoelectric quadrants (10) are connected to the differential amplifiers (50) and (60) together with their common ground point (70).
2. La capsula detectora (100), la reivindicación 1 , CARACTERIZADA porque la vibración de dicha cuerda (40) puede ser separada en dos componentes, de igual frecuencia que difieren en su amplitud según la dirección del rasgueo o punteo. 2. The detector capsule (100), claim 1, CHARACTERIZED in that the vibration of said string (40) can be separated into two components, of equal frequency that differ in their amplitude according to the direction of the strum or plucking.
3. La capsula detectora (100), la reivindicación 1 , CARACTERIZADA porque las dos señales de salida de cada cuerda (40) pueden ser tratadas y/o distorsionadas con ayuda de equipos auxiliares, y de este modo la intención del punto o rasgueo en cierta dirección más que la otra, con lo cual puede controlar la distorsión de la señal proveniente de cada cuerda (40) sin necesidad de utilizar pedales u otros dispositivos auxiliares; así el intérprete tiene en las cuerdas (40) el control de los efectos y/o distorsión del sonido proveniente del instrumento y con esto puede expandir las posibilidades en su interpretación musical. 3. The detector capsule (100), claim 1, CHARACTERIZED in that the two output signals of each string (40) can be treated and / or distorted with the help of auxiliary equipment, and thus the intention of the point or strum in one direction more than the other, thereby controlling the distortion of the signal coming from each string (40) without need to use pedals or other auxiliary devices; Thus, the interpreter has control of the effects and / or distortion of the sound coming from the instrument on the strings (40) and with this he can expand the possibilities in his musical interpretation.
PCT/CL2020/050047 2019-05-02 2020-04-29 Sensor capsule for sensing the polarisation of waves propagated in the strings of stringed musical instruments WO2020220148A1 (en)

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CL2019001211A CL2019001211A1 (en) 2019-05-02 2019-05-02 A detector capsule to detect the polarization of the waves that propagate in the strings of stringed musical instruments.
CL1211-2019 2019-05-02

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PCT/CL2020/050047 WO2020220148A1 (en) 2019-05-02 2020-04-29 Sensor capsule for sensing the polarisation of waves propagated in the strings of stringed musical instruments

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4491051A (en) * 1980-02-22 1985-01-01 Barcus Lester M String instrument pickup system
US4944209A (en) * 1986-04-28 1990-07-31 Fishman Lawrence R Stringed instrument piezoelectric transducer
US5078041A (en) * 1990-06-04 1992-01-07 Schmued Laurence C Suspension bridge pickup for guitar
US5153363A (en) * 1989-05-15 1992-10-06 Fishman Lawrence R Stringed instrument piezoelectric transducer

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4491051A (en) * 1980-02-22 1985-01-01 Barcus Lester M String instrument pickup system
US4944209A (en) * 1986-04-28 1990-07-31 Fishman Lawrence R Stringed instrument piezoelectric transducer
US5153363A (en) * 1989-05-15 1992-10-06 Fishman Lawrence R Stringed instrument piezoelectric transducer
US5078041A (en) * 1990-06-04 1992-01-07 Schmued Laurence C Suspension bridge pickup for guitar

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