It is concluded that the acoustic impedance matching criteria are of great value in layer thickness measurement using ultrasonic interferometry. 针对超声干涉法测量薄层厚度的原理,讨论了薄层及与其相邻介质声阻抗匹配分别满足界面声压反射系数|R1|<1/2或|R1|>1/2时回波信号的选取原则,并以薄层声压反射系数谱为...
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What middle ear parameters tell about impedance matching and high frequency hearing. Hear Res. 1995; 85 :31–44. [ PubMed ]Hemila, S., Nummela, S., & Reuter, T. (1995). What middle ear parameters tell about impedance matching and high frequency hearing. Hearing Research, 85, 31-44....
例句 释义: 全部,声阻抗匹配 更多例句筛选 1. Effect of Acoustic impedance matching of laminate armor material on its ballistic capability 叠层装甲材料的声阻抗匹配与抗弹性能的关系研究 service.ilib.cn 2. Acoustic impedance matching of middle ear 中耳声阻抗匹配 fanyibao.vicp.cc隐私...
3) acoustic impedance matching of middle ear 中耳声阻抗匹配4) tympanometry 声导抗测量 1. The tympanometry on ear system is a new developmental impersonal method to examine thefunction of middle ear in recent years. 耳声导抗测量技术是近年来发展起来的一种中耳功能检测的客观方法。
2) acoustic impedance matching of middle ear 中耳声阻抗匹配3) rayl [reil] 雷[耳](声阻[抗]率的值)4) anti-noise ear-phone 抗噪声耳机5) acoustic impedance 声阻抗 1. Application of acoustic impedance in quality evaluation on well cementation by foamed cement.; 声阻抗技术在泡沫水泥固井...
Pure tone audiometry has hitherto been employed as the sole means of indentifying ear pathology. During the last decade it has been demonstrated that even hearing which is normal according to pure tone sweep check screening audiometry (20 dB) can be associated with middle ear pathology. With th...
Guts: One of the problems the middle ear has to overcome is the mismatch inimpedancebetween air and the cochlea, but impedance matching by the middle ear results in only a 30 dB increase in sound energy transmitted to the inner ear. ...
Impedance at the eardrum, middle-ear transmission, and equal loudness. Acoustic impedance at the eardrum was measured on three subjects as a function of frequency (20 cps to about 1000 cps) and intensity (minimum 65 dB SPL; ma... Ross,Strange - 《Journal of the Acoustical Society of ...
Although the middle ear is often called an impedance matching device, published measurements of the load impedance presented by the cochlea are not extensi... TJ Lynch,V Nedzelnitsky,WT Peake - 《Acoustical Society of America Journal》 被引量: 9发表: 1976年 Low-frequency auditory characteristics...