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| From the day on which Tonwel Company was established, to satisfy people's requirements for the high quality acoustics equipments has all along been regarded as the aim of the enterprise and the dependence on the advance of science and technology has been taken for the fundament of hers.
Throughout years of hard work, Tonwel has laid a firm foundation for hardware and software in the innovation of science and technology. Tonwel has built a largest anechoic chamber and a largest Acoustic Audition Room in East of China. Tonwel's Research & Development Center is equipped with almost all world-famous acoustic testing instruments such as Klippel, LMS, CLIO, SoundCheck and etc. In recent years, based on the international advanced technique--Virtual Instrument Technique, Tonwel has developed several loudspeaker-testing instruments such as ¡°The Compliance of Loudspeaker Spider and Cone Test System¡±, ¡°The Resonance Frequency of Loudspeaker Cone Test System¡±, ¡°Small Object Contour Line Measurement System¡±, ¡°Multichannel Loudspeaker Power Test System¡± and etc. |
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After several years' practice, Tonwel has formed a research and development team of 35 professional technicians with actual strength, in which there are 3 technology consultants who are professors, several engineers who has experience of acoustics work of over 20 years, and the rest has more than 5 years professional experience.
Now, the common loudspeaker sample can be made within 15 days and the new up-to-date loudspeaker sample can be designed and manufactured within 45 days.
In the year 2005, Tonwel was award as one of the Enterprises with New and Advanced Technology of Ningbo City. Tonwel's Research & Development Center was evaluated as the Mobile Loudspeaker Engineering Technology Development Center of Ningbo City. The new STX-123 loudspeaker system, which will be developed by Tonwel, has been listed in the state-level projects ¡°Torch Plans¡±. |
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Brief Introduction for some Loudspeaker Test Instruments |
| In last two years, based on the Virtual Instrument Technique, which is the most advanced and widely used in the nowadays world, our Research & Development Center had developed some special test instruments in succession. |
| 1¡¢¡¶The Compliance of Loudspeaker Spider and Cone Test System¡· |
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| It is mainly applied to measure the displacement of loudspeaker spider or cone when a force presses on them. This instrument not only can plot the curve of displacement versus force, but also can chart the curve of compliance versus displacement of spider or cone. Further, it can calculate the compliance of whole loudspeaker suspension components. These parameters are especially helpful when making high quality loudspeakers. |
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| 2¡¢¡¶Loudspeaker Parts Contour Line Measurement System¡· |
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| Many loudspeaker parts have a correspondingly small size, but a comparatively complicated shape and no any detail drawing with it. It is impossible to accurately measure such sample by using conventional measurement instruments. Our new measurement system solves the problem. It easily and accurately measure and chart the profile contour of the sample. |
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| 3¡¢¡¶The Resonance Frequency of Loudspeaker Cones Test System¡· |
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| The resonance frequency of loudspeakers¡¯ cone is extremely important for producing a high quality loudspeaker. For a long time, how to obtain the cone¡¯s resonance frequency obsessed many loudspeaker manufacturers. Now our test system has successfully solved this problem. |
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| 4¡¢¡¶Multichannel Loudspeaker Power Test System¡· |
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| This test system will automatically record each loudspeaker's data of power handing, such as the temperature raising of voice coil, the lifetime that shows the speakers ability to provide long service at rated power. |
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| 5¡¢¡¶Loudspeaker Spider Elasticity Measurement System¡· |
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| This instrument measures the elasticity of a spider when a force presses on the spider. It has become a convenient, quantitative prove-test tool for our Quality Control Department to examine spiders' quality. |
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