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Acoustic evaluation method for cello resonator based on impedance technology, and experiment device

An evaluation method and technology of experimental devices, applied in measuring devices, using electrical devices, measuring ultrasonic/sonic/infrasonic waves, etc., to achieve the effect of reasonable design, simple structure, and overcoming human factors

Inactive Publication Date: 2017-12-05
ANHUI UNIV OF SCI & TECH
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Problems solved by technology

Traditional musical instrument acoustic evaluation needs to be carried out in a professional acoustic laboratory. Players are required to play cello music, and judges sitting in different positions in the acoustic laboratory make evaluations. It can be seen that there are human factors in the evaluation

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  • Acoustic evaluation method for cello resonator based on impedance technology, and experiment device
  • Acoustic evaluation method for cello resonator based on impedance technology, and experiment device
  • Acoustic evaluation method for cello resonator based on impedance technology, and experiment device

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Embodiment Construction

[0013] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, and are not intended to limit the present invention.

[0014] see figure 1 , figure 2 , image 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 .

[0015] The acoustic evaluation method of cello resonance box of technology, the experimental device that described method uses comprises, impedance analyzer (1), cello resonance box (2), first piezoelectric sensor (3), second piezoelectric sensor (4) , the third piezoelectric sensor (5), the fourth piezoelectric sensor (6), a computer and its software processing system (8), the first piezoelectric sensor (3) includes a first base (9), a first A piezoelectric ceramic sheet (13), th...

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Abstract

The invention discloses an acoustic evaluation method and experimental device for a cello resonance box based on impedance technology, and is characterized in that: the experimental device includes an impedance analyzer, a cello resonance box, a first piezoelectric sensor, and a second piezoelectric sensor , the 3rd piezoelectric sensor, the 4th piezoelectric sensor, computer and software processing system thereof, test experiment device and evaluation method of the present invention, need not player to play cello, directly use impedance analyzer to cello resonant box in low range, Alto zone, treble zone 1, treble zone 2 carry out frequency sweep, test out the impedance spectrogram of described cello resonance box in the scanning frequency range, then judge the quality of cello resonance box according to the impedance spectrogram of cello resonance box. The invention has simple structure and reasonable design, overcomes the artificial factors in evaluating the timbre of the cello in the traditional method, objectively evaluates the timbre of the cello resonance box, and provides a brand-new cello evaluation method for cello manufacturers.

Description

technical field [0001] The invention relates to the fields of impedance technology and cello production technology, in particular to an acoustic evaluation method and experimental device for a cello resonance box based on impedance technology. Background technique [0002] First of all, the cello resonance box is one of the key components of the cello. The resonance box is the pronunciation amplifier of the cello, and it is an important component related to the volume and tone of the cello. The quality of the cello resonance box is directly related to the quality of the cello. The resonance box of the cello is mainly composed of a panel, a bottom plate, a side plate, an f-shaped sound hole, a sound column, and a bass beam. In the vibration of the cello, the vibration energy from the strings is transmitted to the piano board, the body and the nearly closed resonance box through the bridge, and the sound waves are transmitted through the resonance box. There are not only the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01H11/08G01N29/09G10D3/02
CPCG01H11/08G01N29/09G01N2291/018G01N2291/269G10D3/02
Inventor 张军汤红梅张泽宇李宪华赵义黎俊楠袁翔陆俊峰王古超张继明
Owner ANHUI UNIV OF SCI & TECH
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