CN109391894A - The bearing calibration of speaker impedance curve, apparatus and system - Google Patents
The bearing calibration of speaker impedance curve, apparatus and system Download PDFInfo
- Publication number
- CN109391894A CN109391894A CN201811208803.0A CN201811208803A CN109391894A CN 109391894 A CN109391894 A CN 109391894A CN 201811208803 A CN201811208803 A CN 201811208803A CN 109391894 A CN109391894 A CN 109391894A
- Authority
- CN
- China
- Prior art keywords
- impedance
- peak
- speaker
- rlc resonant
- rlc
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R29/00—Monitoring arrangements; Testing arrangements
- H04R29/001—Monitoring arrangements; Testing arrangements for loudspeakers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R3/00—Circuits for transducers, loudspeakers or microphones
- H04R3/04—Circuits for transducers, loudspeakers or microphones for correcting frequency response
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Otolaryngology (AREA)
- Circuit For Audible Band Transducer (AREA)
Abstract
The present invention discloses a kind of speaker impedance curve bearing calibration, comprising: the impedance curve for obtaining speaker finds out the peak point of the impedance curve, and the Impedance Peak and the corresponding frequency of Impedance Peak for needing to correct are determined by the impedance curve；Establish RLC resonant network, the RLC resonant network includes several RLC resonant branch, by each RLC resonant branch in the RLC resonant network to the Impedance Peak of correction in need be corrected；It by needing the Impedance Peak corrected and frequency to determine capacitor value, reactor reactance value and resistor resistance value in each RLC branch, and then establishes target RLC resonant network, the Impedance Peak is corrected by the target RLC resonant network.The present invention is corrected speaker impedance curve, so that the load of the power amplifier in speaker is equivalent to a constant-resistance, the benefit and performance for improving speaker intermediate power amplifier, make speaker intermediate power amplifier be chronically at constant working condition, to improve the quality of sound.
Description
Technical field
The present invention relates to a kind of impedance correction technical fields, more particularly, to a kind of speaker impedance curve bearing calibration, dress
It sets and system and a kind of program product.
Background technique
It is well known that the working principle of loudspeaker is permanent magnet, upper conduction magnetic board, lower magnetic conductive board constitutes a magnetic loop,
The uniform magnetic air gap that a very little is formed between upper conduction magnetic board and lower magnetic conductive board pole piece, when thering is alternating current to flow through in voice coil
When, voice coil will move up and down, to push sound basin that air vibration is caused to make a sound.The voice coil of loudspeaker is one by enamel-cover
Coil made of line coiling, it not only has certain D.C. resistance, also with the inductance of itself.Voice coil moves in magnetic air gap,
Cutting magnetic line, like being generator, it can induce an induced voltage reversed with audio signal, can weaken in voice coil
Voice-frequency signalling current so that the impedance of voice coil increases, this increase can become to get over the rising of audio signal frequency
Come bigger.Speaker system impedance changes with audio signal frequency and the rule of variation, be exactly so-called impedance operator.
The single loudspeaker of the impedance ratio of speaker is much more complex, not only there is multiple speaker combinations, also with its cabinet and point
Frequency device is related, its impedance is not pure resistance, its modulus of impedance and impedance angle are all the functions of frequency, and the modulus value of impedance can be with
Frequency variation, when frequency is gradually increased from low frequency, impedance curve slowly rises.Different closed boxs and paraphase box structure are presented
Impedance curve out is different, and the impedance curve that different frequency-division filter orders is formed is also different.As shown in Figure 1, impedance
Fluctuation it is bigger, since the impedance of speaker is not a constant resistance value, the workload of power amplifier becomes very unstable
It is fixed, power amplifier working efficiency and performance are influenced, playback sound quality is caused to degenerate.
Summary of the invention
The present invention in the prior art the shortcomings that, provide a kind of speaker impedance curve bearing calibration, apparatus and system.
In order to solve the above-mentioned technical problem, the present invention is addressed by following technical proposals:
The present invention discloses following schemes:
A kind of speaker impedance curve bearing calibration, comprising the following steps:
The impedance curve for obtaining speaker, finds out the peak point of the impedance curve, determines to need by the impedance curve
The corresponding frequency of Impedance Peak and Impedance Peak to be corrected, and determine by the Impedance Peak quality factor of speaker；
RLC resonant network is established, the RLC resonant network includes several RLC resonant branch, the RLC resonant branch
Number is identical as the quantity of the Impedance Peak, by each RLC resonant branch in the RLC resonant network to institute school in need
Positive Impedance Peak carries out calibration；
By needing the Impedance Peak, quality factor and the frequency that correct to determine capacitor value, electricity in each RLC branch
Anti- device reactance value and resistor resistance value, and then establish target RLC resonant network, by the target RLC resonant network to institute
Impedance Peak is stated to be corrected.
As an embodiment, each RLC resonant branch includes resistor, reactor and capacitor, described
Reactor and capacitor and resistor are once connected, the other end ground connection of the resistor, reactance in each RLC resonant branch
The other end of device is parallel with one another, is formed in parallel between RLC resonant branch.
As an embodiment, the number at least two of the RLC resonant branch.
As an embodiment, frequency corresponding to the Impedance Peak that the RLC resonant branch needs to correct is from small
To being arranged successively greatly.
As an embodiment, described by needing the Impedance Peak, quality factor and the frequency that correct to determine often
Capacitor value, reactor reactance value and resistor resistance value in a RLC branch, specifically:
C=Δ F × Δ Z/2 π × F0 2×Z2, wherein C is capacitor value, and Δ F indicates resonance frequency impedance peak two sides when resistance
Anti- value drops to frequency difference when 0.707 times of maximum impedance value, i.e. f2-f1；When Δ Z indicates resonance frequency impedance peak maximum
The difference of impedance Z max and rated impedance of loudspeaker Z, F0Indicate the corresponding frequency of Impedance Peak, Z indicates the specified resistance of loudspeaker
It is anti-；
L=Z2/ 2 π × Δ F × Δ Z, wherein L is reactor reactance value, and Δ F indicates resonance frequency impedance peak two sides when resistance
Anti- value drops to frequency difference when 0.707 times of maximum impedance value, i.e. f2-f1；When Δ Z indicates resonance frequency impedance peak maximum
The difference of impedance Z max and rated impedance of loudspeaker Z, Z indicate the rated impedance of loudspeaker；
R=Z2/ Δ Z+Z, wherein R is resistor resistance value, and Δ Z indicates impedance Z max when resonance frequency impedance peak maximum and raises
The difference of sound device rated impedance Z, Z indicate the rated impedance of loudspeaker.
Invention further discloses:
A kind of speaker impedance curve means for correcting, including data establish module, network establishes module and network parameter is established
Module；
The data establish module and find out the peak point of the impedance curve for obtaining the impedance curve of speaker, pass through
The impedance curve determines the Impedance Peak and the corresponding frequency of Impedance Peak for needing to correct, and true by the Impedance Peak
Make the quality factor of speaker；
The network establishes module, and for establishing RLC resonant network, the RLC resonant network includes several RLC resonance branch
The number on road, the RLC resonant branch is identical as the quantity of the Impedance Peak, passes through each RLC in the RLC resonant network
Resonant branch to correction in need Impedance Peak carry out calibration；
The network parameter establishes module, for by needing the Impedance Peak, quality factor and the frequency that correct to determine
Capacitor value, reactor reactance value and resistor resistance value in each RLC branch, and then establish target RLC resonant network, lead to
The target RLC resonant network is crossed to be corrected the Impedance Peak.
As an embodiment, the network is established module and is arranged to:
Each RLC resonant branch includes resistor, reactor and capacitor, the reactor and capacitor and electricity
Resistance device is once connected, the other end ground connection of the resistor, and the other end of reactor is parallel with one another in each RLC resonant branch,
It is formed in parallel between RLC resonant branch.
As an embodiment, the network is established module and is arranged to:
The RLC resonant branch needs frequency corresponding to the Impedance Peak corrected to be arranged successively from small to large.
Invention further discloses:
A kind of speaker impedance curve correction system, including above-described speaker impedance curve means for correcting.
Invention further discloses:
A kind of computer readable storage medium, is stored with computer program, when which is executed by processor realize with
The step of upper the method.
The present invention is due to using above technical scheme, with significant technical effect:
The present invention is corrected speaker impedance curve, by established RLC resonant network so that the power in speaker
The load of amplifier is equivalent to a constant-resistance, improves the benefit and performance of speaker intermediate power amplifier, puts power in speaker
Big device is chronically at constant working condition, to improve the quality of sound.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention without any creative labor, may be used also for those of ordinary skill in the art
To obtain other drawings based on these drawings.
Fig. 1 is the speaker impedance curve schematic diagram before correcting；
Fig. 2 is method flow schematic diagram of the invention；
Fig. 3 is the device of the invention block schematic illustration；
Fig. 4 is RLC resonant network schematic diagram；
Fig. 5 is that RLC thanks to positive network diagram in other embodiments；
Fig. 6 is the corresponding specific RLC resonant network schematic diagram of specific embodiment；
Fig. 7 is using method of the invention to the impedance curve schematic diagram after the correction of speaker impedance curve；
Fig. 8 is a kind of speaker impedance curve correction system structure diagram according to an embodiment of the invention.
Specific embodiment
The present invention will be further described in detail below with reference to the embodiments, following embodiment be explanation of the invention and
The invention is not limited to following embodiments.
In the prior art, the single loudspeaker of the impedance ratio of speaker is much more complex, not only there is multiple speaker combinations, also with
Its cabinet is related with frequency divider, its impedance is not pure resistance, its modulus of impedance and impedance angle are all the function of frequency, impedance
Modulus value can change with frequency, when frequency is gradually increased from low frequency, impedance curve slowly rises.It different closed box and falls
The impedance curve that phase box structure shows is different, and the impedance curve that different frequency-division filter orders is formed is also different.It produces
Raw impedance curve is as shown in Figure 1, the fluctuation of impedance is bigger, since the impedance of speaker is not a constant resistance value, power
The workload of amplifier becomes very unstable, influences power amplifier working efficiency and performance, causes playback sound quality to degenerate, base
In disadvantage mentioned above, the present invention is corrected speaker impedance curve, by established RLC resonant network so that in speaker
The load of power amplifier is equivalent to a constant-resistance, improves the benefit and performance of speaker intermediate power amplifier, makes function in speaker
Rate amplifier is chronically at constant working condition, to improve the quality of sound.
Embodiment 1:
A kind of speaker impedance curve bearing calibration, as shown in Figure 2, comprising the following steps:
S100, the impedance curve for obtaining speaker, find out the peak point of the impedance curve, are determined by the impedance curve
The corresponding frequency of Impedance Peak and Impedance Peak for needing to correct out, and by the Impedance Peak determine the quality of speaker because
Number；
S200, RLC resonant network is established, the RLC resonant network includes several RLC resonant branch, the RLC resonance branch
The number on road is identical as the quantity of the Impedance Peak, by each RLC resonant branch in the RLC resonant network to all need
The Impedance Peak to be corrected carries out calibration；
S300, by needing the Impedance Peak, quality factor and the frequency that correct to determine the capacitor in each RLC branch
Value, reactor reactance value and resistor resistance value, and then establish target RLC resonant network, pass through the target RLC resonant network
The Impedance Peak is corrected.
By established RLC resonant network, speaker impedance curve is corrected, so that the power amplifier in speaker
Load be equivalent to a constant-resistance, improve the benefit and performance of speaker intermediate power amplifier, keep speaker intermediate power amplifier long
Phase is in constant working condition, to improve the quality of sound.
Further, each RLC resonant branch include resistor, reactor and capacitor, the reactor and
Capacitor and resistor are once connected, the other end ground connection of the resistor, and reactor is another in each RLC resonant branch
Hold parallel with one another, parallel connection between formation RLC resonant branch.Also, the number at least two of the RLC resonant branch.Reference
Attached drawing 4 and Fig. 5 establish the RLC resonant network of 4 RLC resonant branch and the RLC Resonance Neural Network of 3 RLC resonant branch respectively
The number of network, these RLC resonant branch needs the number of the Impedance Peak corrected with needs identical, also, more for calibration result
Good, in all embodiments, the RLC resonant branch needs frequency corresponding to the Impedance Peak corrected successively to arrange from small to large
Column, in this way, can be only achieved best calibration result, if be not arranged successively from big to small, the subsequent each RLC of establishment
It just will appear data deviation when capacitor value, reactor reactance value and resistor resistance value in resonant branch, cause entire RLC humorous
The parameter inaccuracy of vibrating network, directly resulting in subsequent correction also will appear problem.
Impedance Peak, quality factor and the frequency corrected by needs determines the capacitor in each RLC branch
Value, reactor reactance value and resistor resistance value, specifically:
C=Δ F × Δ Z/2 π × F0 2×Z2, wherein C is capacitor value, and Δ F indicates resonance frequency impedance peak two sides when resistance
Anti- value drops to frequency difference when 0.707 times of maximum impedance value, i.e. f2-f1；When Δ Z indicates resonance frequency impedance peak maximum
The difference of impedance Z max and rated impedance of loudspeaker Z, F0Indicate the corresponding frequency of Impedance Peak, Z indicates the specified resistance of loudspeaker
It is anti-；
L=Z2/ 2 π × Δ F × Δ Z, wherein L is reactor reactance value, and Δ F indicates resonance frequency impedance peak two sides when resistance
Anti- value drops to frequency difference when 0.707 times of maximum impedance value, i.e. f2-f1；When Δ Z indicates resonance frequency impedance peak maximum
The difference of impedance Z max and rated impedance of loudspeaker Z, Z indicate the rated impedance of loudspeaker；
R=Z2/ Δ Z+Z, wherein R is resistor resistance value, and Δ Z indicates impedance Z max when resonance frequency impedance peak maximum and raises
The difference of sound device rated impedance Z, Z indicate the rated impedance of loudspeaker.
By determining capacitor value, reactor reactance value and resistor resistance value in each RLC resonant branch, by these
Accurate value is updated to established RLC resonant network, is corrected to speaker impedance curve, so that the power amplification in speaker
The load of device is equivalent to a constant-resistance, improves the benefit and performance of speaker intermediate power amplifier, makes speaker intermediate power amplifier
It is chronically at constant working condition, to improve the quality of sound.
Referring to attached drawing 4, attached drawing 4 is to the corrected curve of attached drawing 1, and in fig. 1, abscissa indicates frequency, left side
Ordinate indicates that impedance value, right side ordinate indicate sound size, and unit is decibel, it can be seen from the figure that Impedance Peak point
26Hz, 74Hz, 1700Hz and 5000Hz, and the corresponding impedance value of available each Impedance Peak point are not appeared in, are led to
Impedance Peak and corresponding frequency values are crossed, capacitor value, reactor reactance value and electricity in each RLC resonant branch can be calculated
Device resistance value is hindered, the RLC resonant network set up by calculated capacitor value, reactor reactance value and resistor resistance value is as schemed
Shown in 6, speaker impedance curve is corrected again using RLC resonant network shown in fig. 6, such as Fig. 7 of the impedance curve after correction
Shown, impedance curve fluctuates very little at this time, so that speaker intermediate power amplifier is chronically at constant working condition, thus raising sound
The quality of sound.
Embodiment 2:
A kind of speaker impedance curve means for correcting, as shown in figure 3, including that data establish module 100, network establishes module
200 and network parameter establish module 300；
The data establish module 100, for obtaining the impedance curve of speaker, find out the peak point of the impedance curve,
The Impedance Peak and the corresponding frequency of Impedance Peak for needing to correct are determined by the impedance curve, and pass through the impedance peak
Value determines the quality factor of speaker；
The network establishes module 200, and for establishing RLC resonant network, the RLC resonant network includes several RLC humorous
Shake branch, and the number of the RLC resonant branch is identical as the quantity of the Impedance Peak, by every in the RLC resonant network
A RLC resonant branch to correction in need Impedance Peak carry out calibration；
The network parameter establishes module 300, determines for the Impedance Peak, quality factor and frequency by needing to correct
Capacitor value, reactor reactance value and resistor resistance value in each RLC branch out, and then establish target RLC resonant network,
The Impedance Peak is corrected by the target RLC resonant network.
The network is established module 200 and is arranged to: each RLC resonant branch includes resistor, reactor and electricity
Container, the reactor and capacitor and resistor are once connected, the other end ground connection of the resistor, each RLC resonance
The other end of reactor is parallel with one another in branch, is formed in parallel between RLC resonant branch.
Further, the network is established module 200 and is arranged to: the RLC resonant branch needs the impedance corrected
Frequency corresponding to peak value is arranged successively from small to large.
The design of device in embodiment 2 is identical as the method concept in embodiment 1, and details are not described herein, passes through implementation
The device of example 2 is corrected speaker impedance curve, also by established RLC resonant network so that in speaker
The load of power amplifier is equivalent to a constant-resistance, improves the benefit and performance of speaker intermediate power amplifier, makes function in speaker
Rate amplifier is chronically at constant working condition, to improve the quality of sound.
Embodiment 3:
A kind of speaker impedance curve correction system, as shown in figure 8, including above-described speaker impedance curve means for correcting
1。
Embodiment 4:
A kind of computer readable storage medium, is stored with computer program, when which is executed by processor realize with
The step of upper the method.
For device embodiment, since it is basically similar to the method embodiment, related so being described relatively simple
Place illustrates referring to the part of embodiment of the method.
All the embodiments in this specification are described in a progressive manner, the highlights of each of the examples are with
The difference of other embodiments, the same or similar parts between the embodiments can be referred to each other.
It should be understood by those skilled in the art that, the embodiment of the present invention can provide as method, apparatus or computer program
Product.Therefore, complete hardware embodiment, complete software embodiment or reality combining software and hardware aspects can be used in the present invention
Apply the form of example.Moreover, it wherein includes the computer of computer usable program code that the present invention, which can be used in one or more,
The computer program implemented in usable storage medium (including but not limited to magnetic disk storage, CD-ROM, optical memory etc.) produces
The form of product.
The present invention be referring to according to the method for the present invention, the flow chart of terminal device (system) and computer program product
And/or block diagram describes.It should be understood that each process in flowchart and/or the block diagram can be realized by computer program instructions
And/or the combination of the process and/or box in box and flowchart and/or the block diagram.It can provide these computer programs to refer to
Enable the processor of general purpose computer, special purpose computer, Embedded Processor or other programmable data processing terminal devices with
A machine is generated, so that generating by the instruction that computer or the processor of other programmable data processing terminal devices execute
For realizing the function of being specified in one or more flows of the flowchart and/or one or more blocks of the block diagram
Device.
These computer program instructions, which may also be stored in, is able to guide computer or other programmable data processing terminal devices
In computer-readable memory operate in a specific manner, so that instruction stored in the computer readable memory generates packet
The manufacture of command device is included, which realizes in one side of one or more flows of the flowchart and/or block diagram
The function of being specified in frame or multiple boxes.
These computer program instructions can also be loaded into computer or other programmable data processing terminal devices, so that
Series of operation steps are executed on computer or other programmable terminal equipments to generate computer implemented processing, thus
The instruction executed on computer or other programmable terminal equipments is provided for realizing in one or more flows of the flowchart
And/or in one or more blocks of the block diagram specify function the step of.
It should be understood that
" one embodiment " or " embodiment " mentioned in specification means the special characteristic described in conjunction with the embodiments, structure
Or characteristic is included at least one embodiment of the present invention.Therefore, the phrase " reality that specification various places throughout occurs
Apply example " or " embodiment " the same embodiment might not be referred both to.
Although preferred embodiments of the present invention have been described, it is created once a person skilled in the art knows basic
Property concept, then additional changes and modifications can be made to these embodiments.So it includes excellent that the following claims are intended to be interpreted as
It selects embodiment and falls into all change and modification of the scope of the invention.
In addition, it should be noted that, the specific embodiments described in this specification, the shape of parts and components are named
Title etc. can be different.The equivalent or simple change that all structure, feature and principles described according to the invention patent design are done, is wrapped
It includes in the scope of protection of the patent of the present invention.Those skilled in the art can be to described specific implementation
Example is done various modifications or additions or is substituted in a similar manner, and without departing from structure of the invention or surmounts this
Range as defined in the claims, is within the scope of protection of the invention.
Claims (10)
1. a kind of speaker impedance curve bearing calibration, which comprises the following steps:
The impedance curve for obtaining speaker, finds out the peak point of the impedance curve, determines to need school by the impedance curve
The positive corresponding frequency of Impedance Peak and Impedance Peak, and determine by the Impedance Peak quality factor of speaker；
RLC resonant network is established, the RLC resonant network includes several RLC resonant branch, the number of the RLC resonant branch
It is identical as the quantity of the Impedance Peak, by each RLC resonant branch in the RLC resonant network to correction in need
Impedance Peak carries out calibration；
By needing the Impedance Peak, quality factor and the frequency that correct to determine capacitor value, reactor in each RLC branch
Reactance value and resistor resistance value, and then establish target RLC resonant network, by the target RLC resonant network to the resistance
Anti-peaking value is corrected.
2. speaker impedance curve bearing calibration according to claim 1, which is characterized in that each RLC resonant branch
Comprising resistor, reactor and capacitor, the reactor and capacitor and resistor are once connected, the resistor it is another
One end is grounded, and the other end of reactor is parallel with one another in each RLC resonant branch, is formed in parallel between RLC resonant branch.
3. speaker impedance curve bearing calibration according to claim 2, which is characterized in that of the RLC resonant branch
Number at least two.
4. speaker impedance curve bearing calibration according to claim 1, which is characterized in that the RLC resonant branch needs
Frequency corresponding to the Impedance Peak of correction is arranged successively from small to large.
5. speaker impedance curve bearing calibration according to claim 2, which is characterized in that the resistance by needing to correct
Anti-peaking value, quality factor and frequency determine capacitor value, reactor reactance value and resistor resistance value in each RLC branch,
Specifically:
C=Δ F × Δ Z/2 π × F0 2×Z2, wherein C is capacitor value, and Δ F indicates that impedance value is worked as in resonance frequency impedance peak two sides
Drop to frequency difference when 0.707 times of maximum impedance value, i.e. f2-f1；Δ Z indicates impedance when resonance frequency impedance peak maximum
The difference of Zmax and rated impedance of loudspeaker Z, F0Indicate the corresponding frequency of Impedance Peak, Z indicates the rated impedance of loudspeaker；
L=Z2/ 2 π × Δ F × Δ Z, wherein L is reactor reactance value, and Δ F indicates resonance frequency impedance peak two sides when under impedance value
Frequency difference when being down to 0.707 times of maximum impedance value, i.e. f2-f1；Δ Z indicates impedance when resonance frequency impedance peak maximum
The difference of Zmax and rated impedance of loudspeaker Z, Z indicate the rated impedance of loudspeaker；
R=Z2/ Δ Z+Z, wherein R is resistor resistance value, and Δ Z indicates impedance Z max and loudspeaker when resonance frequency impedance peak maximum
The difference of rated impedance Z, Z indicate the rated impedance of loudspeaker.
6. a kind of speaker impedance curve means for correcting, which is characterized in that establish module including data, network establishes module and network
Parameter establishes module；
The data establish module and the peak point of the impedance curve are found out, by described for obtaining the impedance curve of speaker
Impedance curve determines the Impedance Peak and the corresponding frequency of Impedance Peak for needing to correct, and is determined by the Impedance Peak
The quality factor of speaker；
The network establishes module, and for establishing RLC resonant network, the RLC resonant network includes several RLC resonant branch,
The number of the RLC resonant branch is identical as the quantity of the Impedance Peak, humorous by each RLC in the RLC resonant network
Shake branch to institute correction in need Impedance Peak progress calibration；
The network parameter establishes module, for each by needing the Impedance Peak, quality factor and the frequency that correct to determine
Capacitor value, reactor reactance value and resistor resistance value in RLC branch, and then establish target RLC resonant network, pass through institute
Target RLC resonant network is stated to be corrected the Impedance Peak.
7. speaker impedance curve means for correcting according to claim 6, which is characterized in that the network is established module and set
It is set to:
Each RLC resonant branch includes resistor, reactor and capacitor, the reactor and capacitor and resistor
The other end of primary series connection, the resistor is grounded, and the other end of reactor is parallel with one another in each RLC resonant branch, is formed
It is in parallel between RLC resonant branch.
8. speaker impedance curve means for correcting according to claim 6, which is characterized in that the network is established module and set
It is set to:
The RLC resonant branch needs frequency corresponding to the Impedance Peak corrected to be arranged successively from small to large.
9. a kind of speaker impedance curve corrects system, which is characterized in that including described in any one of claim 6-8 claim
Speaker impedance curve means for correcting.
10. a kind of computer readable storage medium, is stored with computer program, which is characterized in that the program is held by processor
The step of claim 1-5 any one the method is realized when row.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811208803.0A CN109391894A (en) | 2018-10-17 | 2018-10-17 | The bearing calibration of speaker impedance curve, apparatus and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811208803.0A CN109391894A (en) | 2018-10-17 | 2018-10-17 | The bearing calibration of speaker impedance curve, apparatus and system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109391894A true CN109391894A (en) | 2019-02-26 |
Family
ID=65427425
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811208803.0A Pending CN109391894A (en) | 2018-10-17 | 2018-10-17 | The bearing calibration of speaker impedance curve, apparatus and system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109391894A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5119022A (en) * | 1991-06-03 | 1992-06-02 | Center For Innovative Technology | Tank circuit sensor for monitoring resin graphite composite fiber densities |
| US5504425A (en) * | 1993-05-25 | 1996-04-02 | Gebhard Balluff Fabrik Feinmechanischer Erzeugnisse Gmbh & Co. | Inductive sensor responsive to the distance to a conductive or magnetizable object |
| US20080152162A1 (en) * | 2006-06-30 | 2008-06-26 | Pericles Nicholas Bakalos | Passive Headphone Equalizing |
| CN105260558A (en) * | 2015-10-28 | 2016-01-20 | 许继电气股份有限公司 | Broadband model modeling method for high-voltage direct current converter valve component |
| CN106063294A (en) * | 2014-03-05 | 2016-10-26 | 万络机电公司 | Device and method for filtering the resonance peak in a circuit for supplying at least one loud speaker upstream of the latter |
| CN107706908A (en) * | 2017-09-15 | 2018-02-16 | 浙江大学 | A kind of electric power system alternating current network frequency-division section equivalence method based on the matching of port Impedance zero pole point |
| CN108282028A (en) * | 2017-12-29 | 2018-07-13 | 上海广为美线电源电器有限公司 | The tuning methods and system of resonance type wireless electric energy transmission based on current amplitude |
-
2018
- 2018-10-17 CN CN201811208803.0A patent/CN109391894A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5119022A (en) * | 1991-06-03 | 1992-06-02 | Center For Innovative Technology | Tank circuit sensor for monitoring resin graphite composite fiber densities |
| US5504425A (en) * | 1993-05-25 | 1996-04-02 | Gebhard Balluff Fabrik Feinmechanischer Erzeugnisse Gmbh & Co. | Inductive sensor responsive to the distance to a conductive or magnetizable object |
| US20080152162A1 (en) * | 2006-06-30 | 2008-06-26 | Pericles Nicholas Bakalos | Passive Headphone Equalizing |
| CN106063294A (en) * | 2014-03-05 | 2016-10-26 | 万络机电公司 | Device and method for filtering the resonance peak in a circuit for supplying at least one loud speaker upstream of the latter |
| CN105260558A (en) * | 2015-10-28 | 2016-01-20 | 许继电气股份有限公司 | Broadband model modeling method for high-voltage direct current converter valve component |
| CN107706908A (en) * | 2017-09-15 | 2018-02-16 | 浙江大学 | A kind of electric power system alternating current network frequency-division section equivalence method based on the matching of port Impedance zero pole point |
| CN108282028A (en) * | 2017-12-29 | 2018-07-13 | 上海广为美线电源电器有限公司 | The tuning methods and system of resonance type wireless electric energy transmission based on current amplitude |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10623865B2 (en) | System and method for applying a sound signal to a multi coil electrodynamic acoustic transducer | |
| US20160134982A1 (en) | System and method for estimating the displacement of a speaker cone | |
| CN105490592B (en) | Linear electric machine Phase synchronization control system and its control method | |
| KR101172646B1 (en) | Driving control circuit of vibration speaker | |
| US9100759B2 (en) | Loudspeaker driver with sensing coils for sensing the position and velocity of a voice-coil | |
| CN108668206B (en) | Method, circuit and system for avoiding diaphragm excursion of electrokinetic acoustic transducer | |
| US20170111019A1 (en) | Low frequency equalization for loudspeaker system | |
| CN108292843A (en) | Voltage source converter with active damping（VSC）Control system | |
| CN109040936A (en) | The tuning method and loudspeaker test device of loudspeaker | |
| US20220201386A1 (en) | Nonlinear port parameters for vented box modeling of loudspeakers | |
| EP2247120A2 (en) | Passive group delay beam forming | |
| CN109391894A (en) | The bearing calibration of speaker impedance curve, apparatus and system | |
| JP6452207B2 (en) | Apparatus and method for filtering a resonance peak in a power supply circuit of at least one speaker upstream of the speaker | |
| CN206533538U (en) | Loudspeaker | |
| CN106792400A (en) | Loudspeaker and the method for reducing loudspeaker total harmonic distortion | |
| CN105373675B (en) | A kind of SRM stator modes finite element modeling method | |
| US2302983A (en) | Reciprocating motor | |
| JP6374976B2 (en) | Apparatus and method for filtering resonance peaks in a power supply circuit of at least one speaker | |
| CN204887440U (en) | Miniature sounder | |
| CN204993851U (en) | But moving -iron sound generating mechanism of timing and earphone thereof | |
| GB2473921A (en) | Compensation of rising frequency response in passive current-driven loudspeakers | |
| CN111669050B (en) | Compensation method and device for Buck circuit and Buck circuit | |
| US20070172082A1 (en) | Low frequency equalization for loudspeaker system | |
| US1682505A (en) | Telephone instrument | |
| May et al. | LR and LCR Circuits |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190226 |
|
| RJ01 | Rejection of invention patent application after publication |