A kind of method of work of string device for measuring force
Technical field
The present invention relates to a kind of method of works of string device for measuring force, belong to melody auxiliary implement technical field.
Background technology
The reason of stringed musical instrument used at present, such as guitar need frequent tuning, cause tuning, which is that string fluffs, makes
Into sound quality be not allowed, tuner in the market is all by sounding of manipulating the strings, and sound quality is adjusted by judging the frequency of sound, use
Product be " electronic tuning device ".
Invention content
The purpose of the present invention is to provide a kind of method of work of string device for measuring force, so as to preferably help to adjust
String makes its easy to operate clear, easy to use.
To achieve these goals, technical scheme is as follows.
A kind of string device for measuring force, including housing, wherein, setting is there are five case partition in housing, by housing cavity point
Six cavitys are cut into, there are six spring eyes for housing bottom setting, in six cavitys of housing, are respectively arranged with six pulling force bullets
Spring;Housing bottom is provided with string access aperture;Tension spring passes through the spring eye on housing, in housing;Tension spring
On be provided with pcb board, button cell, buzzer and displacement sensor are provided on pcb board;Tension spring is at the top of hull outside
It is provided with knob;Cover is provided on the outside of pcb board.
Further, tension spring is designed to S types, and there are upper boom and lower beam in centre.
Further, knob top is provided with screw thread, and lower part is provided with joystick knob.Knob is used to adjust tension spring position
It puts, is adjusted to be preferably directed to string.
Further, the probe of displacement sensor is arranged in the S types upper boom of tension spring or the cavity of lower beam side,
Displacement sensor is connected by circuit with buzzer, and displacement sensor is connected with button cell.
In the invention, tension spring has certain elastic force, can be deformed after under tension, elongated, pulling force used into S types
The diameter of spring material, pulling force, tensile strength determine that value of thrust manufactures corresponding ruler according to needed for tensing string by Experimental Comparison
Very little S type tension springs.The method of work of string device for measuring force, including:When tension spring by knob in the process tuned a stringed instrument
In, when being stretched to corresponding length, displacement sensor can send out corresponding electric signal, and circuit can be triggered, and buzzer can send out sound
Sound prompting is after the adjustment in place.
The advantageous effect of the invention is:Before the invention utilizes string sounding, need to tighten string, reach certain
During value, correct sound can be generated.Using the principle of tensile force, near string adjusting knob or the other end of string, if
Meter one electronics device for measuring force of installation, when string reaches certain pulling force, so that it may so that string sends out correct sound, reach
The effect of tuning.The existing mode for surveying string frequency of present invention difference, easy to adjust, using effect is simple and clear.
Description of the drawings
Fig. 1 is the Standard schematic diagram of the embodiment of the present invention;
Fig. 2 is vertical view after being assembled in the embodiment of the present invention;
Fig. 3 is middle casing structure diagram of the embodiment of the present invention;
Fig. 4 is tension spring structure diagram in the embodiment of the present invention;
Fig. 5 is tension spring front view in the embodiment of the present invention;
Fig. 6 is pcb board structure diagram in the embodiment of the present invention;
Fig. 7 is knob structure schematic diagram in the embodiment of the present invention;
Fig. 8 is use state diagram in the embodiment of the present invention;
Fig. 9 is pcb board upper-part connection diagram in the embodiment of the present invention;
Description of symbols in figure:1st, housing;2nd, tension spring;3rd, pcb board;4th, cover board;5th, knob;6th, displacement sensor;7、
Button cell;8th, buzzer;9th, string access aperture;10th, case partition;11st, spring eye;12nd, upper boom;13rd, lower beam;14th, screw thread;
15th, joystick knob;16th, base;17th, string.
Specific embodiment
The specific embodiment of the present invention is described with reference to the accompanying drawings and examples, to be better understood from this hair
It is bright.
Embodiment
One tensile test box is set in the position of scroll head, and box upper and lower side respectively stretches out six pulling force heads(Using guitar as
Example), the pulling force that string is subject to can be tested out by this pulling force box.
The string device for measuring force being illustrated in fig. 1 shown below including housing 1, is set in housing 1 there are five case partition 10, by shell
1 inner cavity of body is divided into six cavitys, and the setting of 1 bottom of housing is there are six spring eye 11, as shown in figure 3, in six cavitys of housing 1
In, six tension springs 2 are separately installed with, the specific pattern of tension spring 2 is shown in Fig. 4 and Fig. 5, is designed to S types, and there is upper boom in centre
12 and lower beam 13, bottom be provided with string access aperture 9;Tension spring 2 passes through the spring eye 11 on housing 1, mounted on housing 1
It is interior.
Tension spring 2 is provided with knob 5 in 1 outside top of housing, and the pattern of knob 5 is shown in Fig. 7, and 5 top of knob is provided with
Screw thread 14, lower part are provided with joystick knob 15.Knob 5 is for adjusting 2 position of tension spring, to be preferably directed to string tune
It is whole.
After tension spring 2 is set in housing 1, pcb board 3 on tension spring 2 is installed, knob is provided on pcb board 3
Battery 7, buzzer 8 and displacement sensor 6 are detained, as shown in Figure 6.The probe of displacement sensor 6 is arranged on the S types of tension spring 2
In the cavity of 13 side of upper boom 12 or lower beam, displacement sensor 6 is connected with arithmetic unit, and arithmetic unit is connected with buzzer 8,
Displacement sensor 6, arithmetic unit are connected with button cell 7, as shown in Figure 9.
It after installing tension spring 2, is provided with pcb board 3 and connects circuit, close cover board 4, the sample after box cover
Formula is shown in Fig. 2.Whole device is arranged in base 16, sees attached drawing 8.
Tension spring 2 has certain elastic force, can be deformed after under tension, elongated, 2 material of tension spring used into S types
Diameter, pulling force, tensile strength determined by Experimental Comparison, the S types of value of thrust manufacture corresponding size according to needed for tensing string
Tension spring 2.
When tension spring 2 by knob 5 during tuning a stringed instrument, when being stretched to corresponding length, 6 meeting of displacement sensor
Corresponding electric signal is sent out, displacement sensor 6 can receive the distortional elastomer signal of six roots of sensation string 17, and different distortion amount exports not
Same current value.This value, which is fed back in arithmetic unit, to be compared.When reaching preset value, arithmetic unit output signal, buzzer 8 is sent out
Sound has been prompted after the adjustment in place.
The above is the preferred embodiment of the present invention, it is noted that for those skilled in the art
For, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also considered as
Protection scope of the present invention.