ACOUSTICAL POWER FLOW AS AN AUDIOLOGICAL TOOL

声学功率流作为听力工具

• 批准号: 2801447
• 负责人: PATRICIA S JENG
• 金额: $ 50.66万
• 依托单位: MIMOSA ACOUSTICS
• 依托单位国家: 美国
• 财政年份: 1996
• 资助国家: 美国
• 起止时间: 1996-09-01 至 2002-05-31
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/2801447
• 关键词: audiometry; biomedical equipment development; clinical biomedical equipment; diagnosis design /evaluation; ear disorder diagnosis; hearing tests; middle ear disorder; sound; sound frequency; sound impedance

Description: (From the applicant's abstract) A Power Flow analyzer (PFA) will be developed that will measure relative power absorption, pressure reflectance (magnitude and phase) and normalized acoustic impedance (both resistive and reactive components) of the human ear canal over a frequency range from 200 to 8,000 Hz. The accuracy of the PFA is expected to be within 2 dB of the reference values obtained by Voss and Allen (J. Acoust. Am. 95 372-384, 1994). Normative data for hearing screening will be obtained on neonates, infants, children and adults. The diagnostic potential of the device for evaluation of middle-ear pathologies will also be investigated. PROPOSED COMMERCIAL APPLICATION: NOT AVAILABLE

描述：（从申请人的摘要中）电源流分析仪（PFA）将 开发将测量相对功率吸收，压力反射率 （大小和相）和标准化的声阻抗（电阻和 频率范围从200到200 8,000 Hz。 PFA的准确性预计将在2 dB之内 Voss and Allen获得的参考值（J.Acoust。Am。65372-384，1994）。 用于听力筛查的规范数据将在新生儿，婴儿， 儿童和成人。该设备评估的诊断潜力 还将研究中耳病。 拟议的商业应用程序：不可用