Numerical simulation analysis method for basic characteristics of moving-iron loudspeaker
A technology of numerical simulation and analysis method, applied in special data processing applications, instruments, sensors, etc., can solve the problems of high development cost and imperfect design theory, and achieve the effect of improving product performance, shortening research and development cycle, and low cost
Active Publication Date: 2019-11-08
ZHEJIANG ELECTRO ACOUSTIC R&D CENT CAS
View PDF6 Cites 4 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0005]
The purpose of the invention is to design a numerical simulation method for the basic characteristics of a moving iron loudspeaker. The present invention solves the imperfect design theory of the current moving iron loudspeaker product, and the method of designing and improving the moving iron loudspeaker is still a traditional empirical method, developed high cost
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0078] The present invention will be further described below in conjunction with accompanying drawings and examples of implementation.
[0079] Taking a moving iron loudspeaker as an example, the basic characteristics of the loudspeaker in magnetic field, structural mechanics and sound field are analyzed by using the numerical simulation method disclosed in the present invention.
[0080] figure 1 It is the implementation flowchart of the present invention, and the simulation analysis process of this implementation case is divided into two parts altogether: the displacement of the first part simulates the influence of the displacement of the balance armature on the electromotive force on the coil and the electromagnetic force on the armature; the second part is the basis of the first part In the above, the basic characteristics such as the sound pressure level, frequency response and impedance curve of the moving iron loudspeaker are simulated and analyzed. The following will...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses a numerical simulation analysis method for basic characteristics of a moving-iron loudspeaker. The method is divided into two parts. The first part is to simulate and analyze the magnetic field change caused by the position change of the balance armature, and the magnetic field change can cause the change of electromotive force and electromagnetic force. In the first part,the change relationship between the electromotive force on the coil and the electromagnetic force on the armature along with the displacement of the armature is calculated; the second part is based onthe first part, basic characteristics of the moving-iron loudspeaker are simulated and analyzed, and the basic characteristics comprise an impedance curve, a sound pressure level frequency response curve, sound pressure, sound pressure level distribution and the like of the loudspeaker. Two parts of the method respectively comprise six main steps of (1) establishing a geometric model, (2) settinga physical field and boundary conditions, (3) defining material parameters, (4) setting grid types and sizes and dividing grids, (5) carrying out solving calculation, and (6) carrying out result post-processing.
Description
technical field [0001] The invention belongs to the field of moving iron loudspeakers, and relates to a numerical simulation analysis method involving electromagnetism, structural mechanics and acoustics. By adopting the numerical simulation analysis method disclosed by the invention, the sound pressure level frequency response curve, impedance curve, sound pressure and sound pressure level distribution of the moving iron loudspeaker can be obtained. These simulation analysis results can be used to guide the structural design and improvement of the moving iron loudspeaker to improve its performance. Background technique [0002] The moving iron speaker is also called the balanced armature (Balanced Armature) speaker, which has the advantages of small size, high electro-acoustic conversion efficiency and high sensitivity. Compared with traditional moving coil speakers, moving iron speakers also have high resolution, which can truly restore the details of the original signal;...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More IPC IPC(8): G06F17/50H04R31/00
CPCH04R31/00
Inventor 陆晓徐楚林温周斌李陆化岳磊计敏君
Owner ZHEJIANG ELECTRO ACOUSTIC R&D CENT CAS