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Improving the High-Frequency Response of PEI-Based Earphone with Sodium Copper Chlorophyllin
The polyetherimide diaphragm, sodium copper chlorophyllin (SCC), and copper ion coating composite used on earphones were observed to improve the high-frequency (10k–14k Hz) performance. This reinforcement phenomenon was expected to make the sound experience brighter and more diverse. By SEM observat...
| Autores principales: | , , , |
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| Formato: | Online Artículo Texto |
| Lenguaje: | English |
| Publicado: |
MDPI
2020
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| Materias: | |
| Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6983146/ https://www.ncbi.nlm.nih.gov/pubmed/31948101 http://dx.doi.org/10.3390/molecules25010219 |