AN EVALUATION OF A NEW ARTIFICIAL MASTOID AS AN INSTRUMENT FOR THE CALIBRATION OF AUDIOMETER BONE-CONDUCTION SYSTEMS.
AN EVALUATION OF A NEW ARTIFICIAL MASTOID AS AN INSTRUMENT FOR THE CALIBRATION OF AUDIOMETER BONE-CONDUCTION SYSTEMS.
复制标题
对新型人工乳突作为听力计骨传导系统校准仪器的评估。
DOI：
10.1121/1.2142784
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发表时间：
1963
期刊：
影响因子：
--
通讯作者：
W. Olsen
中科院分区：
文献类型：
--
作者：
J. W. Sanders;W. Olsen
在纯音听力测定中获得可靠的骨导阈值的一个基本问题是实现系统振动输出的客观测量。过去，已经报道了几种不同的人工乳突设计，但没有一种被证明是完全令人满意的标准校准仪器，这主要是因为设计一种稳定且可重复的方法来终止具有模拟普通人类乳突机械阻抗的骨振动器的问题。在本研究中，分析了一种新型人工乳突 Beltone model 4 的响应稳定性及其作为校准仪器的潜在用途。使用两个骨振动器在一段时间内重复测量，以确定测量仪器的可靠性和线性度。然后从正常听力受试者的合适样本中得出其中一种振动器的标准数据。然后，这些数据通过人工乳突传输到相同类型的其他振动器，并测量正常听力受试者和感音神经性听力障碍受试者的标准样本的骨传导阈值。结果表明，新型人工乳突具有良好的稳定性，并且作为骨导听力计校准仪器显示出良好的前景。
A basic problem in obtaining dependable bone‐conduction thresholds in pure‐tone audiometry has been the attainment of an objective measure of the vibrational output of the system. In the past, several different artificial‐mastoid designs have been reported, but none has proved entirely satisfactory as a standard calibration instrument, largely because of the problems involved in devising a stable and reproducible method of terminating the bone vibrator with a mechanical impedance that simulates that of the average human mastoid. In the present study, a new artificial mastoid, Beltone model 4, was analyzed for stability of response and for its potential use as a calibration instrument. Two bone vibrators were used for repeated measurements over a period of time to establish the reliability and linearity of the measuring instrument. Normative data were then derived from a suitable sample of normal‐hearing subjects for one of the vibrators. These data were then transferred to other vibrators of the same type via the artificial mastoid, and bone‐conduction thresholds were measured for the criterion sample of normal‐hearing subjects and for subjects with sensorineural hearing impairments. Results suggest that the new artificial mastoid has good stability and that it shows excellent promise as an instrument for the calibration of bone‐conduction audiometers.