CN209197952U - The measuring device that piano key sinks with rise load - Google Patents
The measuring device that piano key sinks with rise load Download PDFInfo
- Publication number
- CN209197952U CN209197952U CN201822174755.XU CN201822174755U CN209197952U CN 209197952 U CN209197952 U CN 209197952U CN 201822174755 U CN201822174755 U CN 201822174755U CN 209197952 U CN209197952 U CN 209197952U
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- China
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- pressure
- detecting device
- cradling piece
- measuring device
- piano key
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Abstract
A kind of measuring device that piano key sinks with rise load, including cradling piece and pressure-detecting device, cradling piece is equipped with pressure-detecting device, cradling piece both ends are equipped with claw, claw is mounted on piano rib, and this method utilizes acoustic apparatus and pressure-detecting device, to replace placement and the human ear of traditional counterweight come at the time of judging that hammer slightly strikes string, the measurement accuracy of key sinking load not only can be improved, but also measurement efficiency can be improved.
Description
Technical field
The utility model relates to pianos to debug field, and in particular to a kind of measurement dress of piano key sinking and rise load
It sets.
Background technique
The traditional measurement method of key sinking load is as follows: stepping on Sustain, gradually increases in the front end of key to be measured and put
Counterweight, until the key at the uniform velocity sinks, is connected with the key hammer slightly strikes corresponding string and makes a sound.This
When, the total weight of the counterweight on the key to be measured is the sinking load of the key, the traditional measurement method of key sinking load
Dependent on the skill of the power of hearing and placement counterweight of adjusting stringed-instrument player, the placement of counterweight also will affect the measurement of key sinking load.And it adjusts
The power of hearing of stringed-instrument player varies with each individual.In addition, human ear is also different for the sensitivity of high pitch and bass, and environment is made an uproar
Sound will affect the capture for adjusting stringed-instrument player for qin sound.Therefore, qin sound is listened attentively to based on human ear to judge whether hammer slightly strikes string
Conventional method when measuring key sinking load, there are certain errors, and can make to adjust stringed-instrument player is more tired, measuring speed compared with
Slowly.
Utility model content
The utility model provides a kind of measuring device that piano key sinks with rise load, and this method utilizes acoustic apparatus
And pressure-detecting device, at the time of judging that hammer slightly strikes string, not only may be used to replace placement and the human ear of traditional counterweight
To improve the measurement accuracy of key sinking load, and measurement efficiency can be improved.
In order to solve the above technical problems, the technical scheme adopted by the utility model is:, and a kind of piano key sinks and returns
The measuring device of load up, it is characterized in that: including cradling piece and pressure-detecting device, cradling piece is equipped with pressure-detecting device,
Cradling piece both ends are equipped with claw, and claw is mounted on piano rib；
The pressure-detecting device includes shell, pressure axis and electronics pressure sensitivity meter, and the pressure axis passes through shell, pressure axis
Test side is equipped with electronics pressure sensitivity meter, and electronics pressure sensitivity meter is equipped with rubber top cover, and the driving end outer surface of pressure axis is equipped with fixed block,
Press belt is fixed on fixed block, the other end of press belt is connect with wheel disc, and wheel disc is mounted on servo motor；
The pressure-detecting device shell is equipped with sound pick up equipment.
In preferred embodiment, pressure-detecting device is connect by sliding slot with cradling piece.
In preferred embodiment, the pressure-detecting device case surface is equipped with display screen and control button.
In preferred embodiment, the cradling piece is scalable.
The measuring device that a kind of piano key provided by the utility model sinks with rise load, according to sound principle and pressure
Force checking device detects the sinking load of key, using cradling piece come fixation pressure detection device, the pressure of pressure-detecting device
Power shaft end portion is equipped with electronics pressure sensitivity meter, replaces the measurement method of traditional counterweight, and electronics pressure sensitivity is calculated as the inspection of precise electronic pressure sensitivity meter
It surveys precision and is not less than 0.0002N, axially piano key direction to be measured is mobile by Serve Motor Control pressure, until piano issues
Sound, sound pick up equipment receive signal, and the sound that when impact is issued is easy to be detected by sound pick up equipment, and sound pick up equipment generates
Signal, which controls servo motor, to be stopped, and replaces human ear come at the time of judging that hammer slightly strikes string using acoustic apparatus, Ke Yi great
It is big to improve measurement efficiency, reduce the fatigue for adjusting stringed-instrument player.
Detailed description of the invention
Fig. 1 is the measuring device main view of rise load；
Fig. 2 is the pressure-detecting device structure chart of the measuring device of rise load；
Fig. 3 is the pressure-detecting device test side structure chart of the measuring device of rise load；
Fig. 4 is the pressure-detecting device left view of the measuring device of rise load；
Fig. 5 is the pressure-detecting device back structure chart of the measuring device of rise load；
Fig. 6 is that the measuring device of rise load uses schematic enlarged-scale view；
Fig. 7 is the measuring device integral installation structure chart of rise load；
In figure: piano rib 1；White key 2；Claw 3；Cradling piece 4；Pressure-detecting device 5；Pressure axis 51；Gu
Determine block 52；Press belt 53；Wheel disc 54a；Servo motor 54b；Display screen 55；Control button 56；Electronics pressure sensitivity meter 57；Rubber top cover
58；Shell 59；Sliding slot 6；Sound pick up equipment 7.
Specific embodiment
In Fig. 1 ~ 7, a kind of measuring device that piano key sinks with rise load, it is characterized in that: including 4 He of cradling piece
Pressure-detecting device 5, cradling piece 4 are equipped with pressure-detecting device 5, and 4 both ends of cradling piece are equipped with claw 3, and claw 3 is mounted on piano
On rib 1；The pressure-detecting device 5 includes shell 59, pressure axis 51 and electronics pressure sensitivity meter 57, and the pressure axis 51 passes through outer
Shell 59,51 test side of pressure axis are equipped with electronics pressure sensitivity meter 57, and electronics pressure sensitivity meter 57 is equipped with rubber top cover 58, the drive of pressure axis 51
Moved end outer surface is equipped with fixed block 52, and press belt 53 is fixed on fixed block 52, and the other end and wheel disc 54a of press belt 53 connect
It connects, wheel disc 54a is mounted on servo motor 54b, and 5 shell 59 of pressure-detecting device is equipped with sound pick up equipment 7, is thus tied
Structure replaces traditional measurement method, removes the measurement method of counterweight, and piano key is measured using electronics pressure sensitivity meter and sinks and gos up
The numerical value of load is capable of the sinking load of more accurate key at the time of judging that hammer strikes string using acoustic apparatus
Measurement accuracy.
In preferred embodiment, pressure-detecting device 5 is connect by sliding slot 6 with cradling piece 4, can detecte entire piano key
The measurement accuracy of the sinking load of key.
In preferred embodiment, 5 shell of pressure-detecting device, 59 surface is equipped with display screen 55 and control button 56, accurately
It shows pressure data, can more preferably be manipulated.
In preferred embodiment, the cradling piece 4 is scalable, adapts to different piano rib width and length.
In use, the both ends of cradling piece 4 are stuck on the piano rib 1 of piano by claw 3, and pressure detecting is filled
The position for setting 5 rubber top cover 58 is adjusted at 18 ~ 25cm of front end of key to be measured, is stepped on piano Sustain, is pressed pressure
The control button 56 of detection device 5, servo motor 54b are started turning, and press belt 53 makes pressure under the driving of servo motor 54b
Axis 51 moves down, and rubber top cover 58 presses down on key, and until piano makes a sound, sound pick up equipment 7 receives signal, and
It controls servo motor 54b by route to stop, at this point, 5 screen upper end numerical value of pressure-detecting device is the sinking load of the key
Value, after being measured, presses control button 56, is classified as pressure-detecting device 5, adjusts the position of pressure-detecting device 5 again,
Carry out next round detection.
The above embodiments are only the optimal technical scheme of the utility model, and are not construed as the limit for the utility model
System, the technical solution that the protection scope of the utility model should be recorded with claim, the technical solution recorded including claim
The equivalents of middle technical characteristic are protection scope.Equivalent replacement i.e. within this range is improved, also in the utility model
Protection scope within.
Claims (4)
- The measuring device with rise load 1. a kind of piano key sinks, it is characterized in that: including that cradling piece (4) and pressure detecting fill It sets (5), cradling piece (4) is equipped with pressure-detecting device (5), and cradling piece (4) both ends are equipped with claw (3), and claw (3) is mounted on steel On qin rib (1)；The pressure-detecting device (5) includes shell (59), pressure axis (51) and electronics pressure sensitivity meter (57), the pressure axis (51) Across shell (59), pressure axis (51) test side is equipped with electronics pressure sensitivity meter (57), and electronics pressure sensitivity meter (57) is equipped with rubber top cover (58), the driving end outer surface of pressure axis (51) is equipped with fixed block (52), is fixed with press belt (53), pressure on fixed block (52) The other end of band (53) is connect with wheel disc (54a), and wheel disc (54a) is mounted on servo motor (54b)；Pressure-detecting device (5) shell (59) is equipped with sound pick up equipment (7).
- 2. a kind of measuring device of piano key sinking and rise load according to claim 1, it is characterized in that: pressure detecting Device (5) is connect by sliding slot (6) with cradling piece (4).
- 3. a kind of measuring device of piano key sinking and rise load according to claim 2, it is characterized in that: the pressure Detection device (5) shell (59) surface is equipped with display screen (55) and control button (56).
- 4. a kind of measuring device of piano key sinking and rise load according to claim 2, it is characterized in that: the bracket Bar (4) is scalable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822174755.XU CN209197952U (en) | 2018-12-24 | 2018-12-24 | The measuring device that piano key sinks with rise load |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822174755.XU CN209197952U (en) | 2018-12-24 | 2018-12-24 | The measuring device that piano key sinks with rise load |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209197952U true CN209197952U (en) | 2019-08-02 |
Family
ID=67430231
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822174755.XU Active CN209197952U (en) | 2018-12-24 | 2018-12-24 | The measuring device that piano key sinks with rise load |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209197952U (en) |
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2018
- 2018-12-24 CN CN201822174755.XU patent/CN209197952U/en active Active
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