CN2398707Y

CN2398707Y - One-chip machine correcting and tuning apparatus

Info

Publication number: CN2398707Y
Application number: CN 99224915
Authority: CN
Inventors: 甘永光
Original assignee: Individual
Current assignee: Individual
Priority date: 1999-08-24
Filing date: 1999-08-24
Publication date: 2000-09-27
Anticipated expiration: 2009-08-24

Abstract

The utility model relates to a correcting and tuning apparatus for musical instruments. The correcting and tuning apparatus which is controlled by a single chip computer is composed of a single chip computer, sensor, an operational amplifier, a liquid crystal display, a speech circuit, a loudspeaker, a motor drive circuit, a stepping motor, a gear speed reducer, a tuning chuck, a sensor bracket, a tuning setting button, a reset button, a power switch button, a voltage stabilizing circuit, a battery and a controller shell. The device can be used for correcting and tuning pianos, dulcimers and other stringed instrument. The utility model has the advantages of convenient use and simple operation.

Description

Single-chip microcomputer tuner organ stop

The utility model relates to a kind of musical instrument tuner organ stop.

Since the dawn of human civilization stringed musical instruments such as piano are carried out tuner and this work of tuning is to rely on professional tuner to carry out with hearing and this classic method of experience of ear always, because the interpersonal otherness that exists, the height of music attainment, and each one is subjected to all multifactor influences such as physiology, psychology, environment, and each tuner can not guarantee the tuner that every musical instrument is carried out and the pin-point accuracy of tuning musical note.

The purpose of this utility model is to provide hearing and the experience of a kind of people of solution with ear to judge and adjust single-chip microcomputer tuner organ stop as the accuracy of musical instrument musical notes such as piano.

In order to achieve the above object, the technical solution adopted in the utility model is: Single-chip Controlling musical instrument tuner organ stop is made up of single-chip microcomputer, sensor, operational amplifier, LCD, sound circuit, loudspeaker, motor drive circuit, stepping motor, gear reducer, tuning dop, sensor stand, tuning setting button, reset key, power switch button, mu balanced circuit, battery, controller housing.

The utility model has the advantages that:

1, adopting single-chip microcomputer that musical instrument strings such as piano generation audio frequency vibration is accurately gathered with high speed analysis calculates, and the check and analysis result shown in the character graphics mode by LCD, and export with speech form by loudspeaker, single-chip microcomputer according to analyzing and testing as a result the control step motor by gear reducer and adjust the tension force that mechanical hook-up such as dop is adjusted string automatically, be the height that string sends musical note, thereby realize the robotization of tuner and tuning process.

2, use electromagnetic sensor that electromagnetic induction principle makes and vibrations of strings is directly changed into is electric signal, got rid of the interference that noises such as the partials in the testing process, reflection sound produce sound detection.

3, adopt quartz oscillator to provide high precision and high stability clock pulse, guarantee the pin-point accuracy and the stability of tuner tuning process for single-chip microcomputer.

4, used the low power consumption integrated circuit device, it is little to make that single-chip microcomputer tuner organ stop has a volume, characteristics such as energy consumption is low and be easy to carry about with one.

Description of drawings:

Fig. 1 is the utility model functional-block diagram;

Fig. 2 is the utility model circuit theory diagrams;

Fig. 3 is the sensor construction synoptic diagram;

Fig. 4 is the local enlarged diagram of sensor construction;

Fig. 5 is the sensor support structure synoptic diagram;

Fig. 6 is that sensor stand dop blind hole is the octagon synoptic diagram;

Fig. 7 is that sensor stand dop blind hole is the quadrilateral synoptic diagram;

Fig. 8 is the adjuster structural representation;

Fig. 9 is that adjustment dop blind hole is the octagon synoptic diagram;

Figure 10 is that adjustment dop blind hole is the quadrilateral synoptic diagram;

Figure 11 is the controller panel synoptic diagram;

Figure 12 is a controller top sensor installation jack adjuster jack synoptic diagram.

Below in conjunction with accompanying drawing embodiment of the present utility model is described in further detail.

By Fig. 1-Figure 12 as can be known, the utility model is that Single-chip Controlling musical instrument tuner organ stop is made up of single-chip microcomputer, sensor, operational amplifier, LCD, sound circuit, loudspeaker, motor drive circuit, stepping motor, gear reducer, tuning dop, sensor stand, tuning setting button, reset key, power switch button, mu balanced circuit, battery, controller housing.

Magnetic core 2 two ends protrude in betal can 4 surfaces in the described sensor 1.

Described motor-drive circuit IC ₃Output terminal 01,02,03,04 is by interface 16 and stepping motor 17 coil L ₁, L ₂, L ₃, L ₄Corresponding connection, single-chip microcomputer IC ₁Interface P ₁₄Be connected single-chip microcomputer IC with button 14 ₁Interface P ₁₅Be connected triode BG with button 15 ₁Collector is connected with button 11, and button 11 other ends are connected triode BG with battery E positive pole ₁Collector and resistance R ₉One end is connected, resistance R ₉The other end is connected single-chip microcomputer IC with battery E positive pole ₁Interface P ₁₆With resistance R ₁₂Be connected resistance R ₁₂The other end and triode BG ₁Base stage is connected, triode BG ₁Base stage is connected with button 12, sensor 1 is installed in socket 8 front ends, socket 8 is connected with coiled pipe 18 1 ends, coiled pipe 18 other ends are connected with curved frame 19 1 ends, curved frame 19 other ends are connected with fixed chuck 20, and fixed chuck 20 other ends offer the octagon blind hole, and stepping motor 17 rotating shafts are imported rotating shaft at a high speed with gear reducer 21 and are connected, gear reducer 21 low speed output revolving shafts are connected with string tuning dop 23, and string tuning dop 23 1 ends offer the octagon blind hole.

Leave slit 7 between magnetic core 2 two ends that are provided with in the described sensor 1.

The described blind hole that fixed chuck 20 1 ends are offered in the sensor stand assembly is a quadrilateral.

The described blind hole of offering at tuning dop 23 1 ends is a quadrilateral.

Describedly be provided with sensor gang socket 10 on controller housing 25 tops.

Describedly be provided with stepping motor gang socket 16 on controller housing 25 tops.

Described controller housing 25 front panels are provided with reset key 15, and

button

13,14 is set in tuning.

Described controller housing 25 front panels are provided with power connection button 11 and power remove button 12.

Described controller housing 25 front panels are provided with liquid crystal display displays window 23.

Describedly on controller housing 25 front panels, be provided with loudspeaker acoustic hole 24.

Magnetic core 2 is installed in sensor 1, is wound with solenoid 3 on magnetic core 2, magnetic core 2 is encapsulated in the betal can 4 with solenoid 3, and electromagnetism wire ring 3 two ends are through plug 5, socket 8, plug 9, socket 10, capacitor C ₁, resistance R ₁With operational amplifier F ₁Input end is connected, operational amplifier F ₁Output terminal and capacitor C ₃Be connected capacitor C ₃With resistance R ₅Be connected resistance R ₅With operational amplifier F ₂Input end is connected, operational amplifier F ₂Output terminal and single-chip microcomputer IC ₁Interface INTO is connected, single-chip microcomputer IC ₁Interface P ₁₀, P ₁₁, P ₁₂, P ₁₃With sound circuit IC ₂Input end is connected, sound circuit IC ₂Output terminal is connected with loudspeaker YS, single-chip microcomputer IC ₁Interface P0.0 is connected single-chip microcomputer IC with the RS end of LCD YJ ₁Interface P0.1 is connected single-chip microcomputer IC with the R/W end of LCD YJ ₁Interface P02 is connected single-chip microcomputer IC with the E end of LCD YJ ₁Interface P04, P05, P06, P07 hold corresponding connection, single-chip microcomputer IC with DB4, DB5, DB6, the DB7 of LCD YJ ₁Interface P20, P21, P22, P23 and motor-drive circuit IC ₃Input end I ₁, I ₂, I ₃, 1 ₄Corresponding connection, motor-drive circuit IC ₃Output terminal 01,02,03,04 is by interface 16 and stepping motor 17 coil L ₁, L ₂, L ₃, L ₄Corresponding connection, single-chip microcomputer IC ₁Interface P14 is connected with button 14, single-chip microcomputer IC ₁Interface P15 is connected with button 15, triode BG ₁Collector is connected with button (11), and button 11 other ends are connected triode BG with battery E positive pole ₁Collector and resistance R ₉One end is connected, resistance R ₉The other end is connected single-chip microcomputer IC with battery E positive pole ₁Interface P ₁₆With resistance R ₁₂Be connected resistance R ₁₂The other end and triode BG ₁Base stage is connected, triode BG ₁Base stage is connected with button 12, sensor 1 is installed in socket 8 front ends, socket 8 is connected with coiled pipe 18 1 ends, coiled pipe 18 other ends are connected with curved frame 19 1 ends, curved frame 19 other ends are connected with fixed chuck 20, and fixed chuck 20 other ends offer the octagon blind hole, and stepping motor 17 rotating shafts are imported rotating shaft at a high speed with gear reducer 21 and are connected, gear reducer 21 low speed output revolving shafts are connected with string tuning dop 23, and string tuning dop 23 1 ends offer the octagon blind hole.

Principle of work of the present utility model:

When stringed musical instrument is carried out tuner and tuning, fixed chuck on the sensor stand is inserted in string to be adjusted on the post, make sensor magnetic core end face and tested string at a distance of the 1-2 millimeter, the button of pressing on the tuning CALIBRATION shell 26 11 is connected the organ stop power supply, by the

button

20 and 21 on the tuning CALIBRATION outer 26, set the standard musical note that to adjust string, an end that tuning dop 23 on the string adjusting mechanism is had the octagon blind hole is inserted on the string adjustment post of the tuning of wanting, knock string then and make its vibration sounding, because vibrations of strings, make magnetic core 2 two ends in the sensor 1 and the distance between the string constantly change with vibrations of strings, thereby cause the respective change of magnetic induction density in the magnetic core 2, can produce and the corresponding to induction electromotive force of string vibration frequency in the solenoid 3 on the magnetic core 2 as can be known by electromagnetic induction principle, be ac signal, the electric signal that produces at solenoid 3 two ends is through plug S and socket 8 and shielded conductor L and capacitor C ₁And resistance R ₁Be sent to operational amplifier F ₁Inverting input, through operational amplifier F ₁Electric signal after the amplification passes through capacitor C ₃And resistance R ₅Be sent to operational amplifier F ₂Inverting input, through operational amplifier F ₂Electric signal after the amplification is sent to single-chip microcomputer IC ₁The INTO port, single-chip microcomputer IC ₁To operational amplifier F ₂The electric signal of output carries out timing acquiring, and the scale data of being gathered be stored in single-chip microcomputer IC ₁Inner standard pronunciation exponent number is according to comparing analysis, single-chip microcomputer IC ₁The result of comparative analysis is passed through data-interface P ₀₄, P ₀₅, P ₀₆, P ₀₇Be sent to the DB of LCD YJ ₀₄, DB ₀₅, DB ₀₆, DB ₀₇Input end shows testing result in the character graphics mode, single-chip microcomputer IC ₁By data-interface P ₁₀, P ₁₁, P ₁₂End will detect data and be sent to sound circuit IC ₂Input end, sound circuit IC ₂Drive loudspeaker YS with speech form output single-chip microcomputer IC ₁Testing result, single-chip microcomputer 1C simultaneously ₁According to testing result, by data-interface P ₂₀, P ₂₁, P ₂₂, P ₂₃Control signal is delivered to motor-drive circuit IC ₃I ₁, I ₂, I ₃, I ₄Input end, motor-drive circuit IC ₃By winding L in 01,02,03, the 04 output terminal control step motor 17 ₁, L ₂, L ₃, L ₄Power-up sequence, make the sense of rotation of stepper motor 17 rotating shafts and the anglec of rotation with single-chip microcomputer IC ₁Output control signal and decide, pass through gear reducer 21 and tuning dop 23 by the angular displacement that stepper motor 17 rotating shafts produce, drive string tuning post rotates thereupon, thereby changed by the size of tuning string tension force, promptly changed the height of being transferred the string musical note, realized the string audio frequency vibration being detected, the data that detect have been compared analysis by single-chip microcomputer, carry out character graphics and show and voice output, and the whole process that the control mechanical hook-up is calibrated automatically to the string musical note is controlled automatically.

After a tuning process finishes, single-chip microcomputer IC ₁Enter the time-delay waiting status, single-chip microcomputer IC ₁After delay waiting process finishes, with the feed circuit of automatic cutout single-chip microcomputer tuner organ stop, make single-chip microcomputer tuner organ stop be in power down mode, to save the power consumption of battery, at single-chip microcomputer IC ₁Enter the time-delay waiting time, can press the button 15 on control device 5 surfaces, control tuner organ stop carries out the tuner and the tuning process of a new round, also can be by the power remove button 12 on movement controller 25 surfaces, turn-off the power supply of single-chip microcomputer tuner organ stop, finish tuner tuning work.

Claims

1, a kind of Single-chip Controlling musical instrument tuner organ stop, be made up of single-chip microcomputer, sensor, operational amplifier, it is characterized in that: Single-chip Controlling musical instrument tuner organ stop is made up of single-chip microcomputer, sensor, operational amplifier, LCD, sound circuit, loudspeaker, motor drive circuit, stepping motor, gear reducer, tuning dop, sensor stand, tuning setting button, reset key, power switch button, mu balanced circuit, battery, controller housing.

2, according to the described Single-chip Controlling musical instrument of claim 1 tuner organ stop, it is characterized in that: magnetic core (2) two ends that are provided with in the sensor (1) protrude in betal can (4) surface.

3, according to the described Single-chip Controlling musical instrument of claim 1 tuner organ stop, it is characterized in that: described motor-drive circuit IC ₃Output terminal 01,02,03,04 is by interface (16) and stepping motor (17) coil L ₁, L ₂, L ₃, L ₄Corresponding connection, single-chip microcomputer IC ₁Interface P ₁₄Be connected single-chip microcomputer IC with button (14) ₁Interface P ₁₅Be connected triode BG with button (15) ₁Collector is connected with button (11), and button (11) other end is connected triode BG with battery E positive pole ₁Collector and resistance R ₉One end is connected, resistance R ₉The other end is connected single-chip microcomputer IC with battery E positive pole ₁Interface P ₁₆With resistance R ₁₂Be connected resistance R ₁₂The other end and triode BG ₁Base stage is connected, triode BG ₁Base stage is connected with button (12), sensor (1) is installed in socket (8) front end, socket (8) is connected with coiled pipe (18) one ends, coiled pipe (18) other end is connected with curved frame (19) one ends, curved frame (19) other end is connected with fixed chuck (20), fixed chuck (20) other end offers the octagon blind hole, stepping motor (17) rotating shaft is imported rotating shaft at a high speed with gear reducer (21) and is connected, gear reducer (21) low speed output revolving shaft is connected with string tuning dop (23), and string tuning dop (23) one ends offer the octagon blind hole.

4, according to the described Single-chip Controlling tuner of claim 1 organ stop, it is characterized in that: sensor (1), magnetic core (2) leave slit (7) between the two ends.

5, according to the described Single-chip Controlling tuner of claim 1 organ stop, it is characterized in that: the blind hole that fixed chuck (20) one ends are offered in the sensor stand assembly is a quadrilateral.

6, according to the described single-chip microcomputer tuner of claim 1 organ stop, it is characterized in that: the blind hole of offering at tuning dop (23) one ends is a quadrilateral.

7, single-chip microcomputer tuner organ stop according to claim 1 is characterized in that: be provided with sensor gang socket (10) on controller housing (25) top.

8, single-chip microcomputer tuner organ stop according to claim 1 is characterized in that: be provided with stepping motor gang socket (16) on controller housing (25) top.

9, according to the described single-chip microcomputer tuner of claim 1 organ stop, it is characterized in that: controller housing (25) front panel is provided with reset key (15), and button (13), (14) are set in tuning.

10, according to the described single-chip microcomputer tuner of claim 1 organ stop, it is characterized in that: controller housing (25) front panel is provided with power connection button (11) and power remove button (12).

11, according to the described single-chip microcomputer tuner of claim 1 organ stop, it is characterized in that: controller housing (25) front panel is provided with liquid crystal display displays window (23).

12,, it is characterized in that on controller housing (25) front panel, being provided with loudspeaker acoustic hole (24) according to the described single-chip microcomputer tuner of claim 1 organ stop.