| 全数控听觉测试仪的研制 |
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| 引用本文： | 陈龙聪,刘改琴,刘亚涛,高斌,甘平.全数控听觉测试仪的研制[J].中国医学物理学杂志,2006,23(3):224-226,165. |
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| 作者姓名： | 陈龙聪 刘改琴 刘亚涛 高斌 甘平 |
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| 作者单位： | 1. 重庆医科大学生物医学工程研究室,重庆,400016
2. 重庆工学院数理学院应用物理系,重庆,400050 |
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| 摘 要： | 本文提出了一种以单片机和高性能芯片为核心研制的全数控听觉测试仪。它输出的高精度频率和高纯度正弦信号，在频率和幅度上均采用数控。并利用单片机对耳机本身频率响应进行修正，使得显示的分贝数即为实际的分贝数。另外，各按钮均采用触摸式按钮，使得其操作简单、方便。适合于各种听觉方面的测试和教学。尤其是在医学中，对人耳频率特性和人体阻抗特性的研究和教学极为方便。
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| 关 键 词： | 单片机 数控 听觉 |
| 文章编号： | 1005-202X（2006）03-0224-03 |
| 收稿时间： | 2005-10-31 |
| 修稿时间： | 2005-10-31 |
Development of Digital-Controlled Instrument for Measure Hearing |
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| CHEN Long-cong,LIU Gai-qin,LIU Ya-tao,GAO Bin,GAN Ping.Development of Digital-Controlled Instrument for Measure Hearing[J].Chinese Journal of Medical Physics,2006,23(3):224-226,165. |
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| Authors: | CHEN Long-cong LIU Gai-qin LIU Ya-tao GAO Bin GAN Ping |
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| Institution: | 1.Department of Biomedicine Engineering, Chongqing University of Medical Sciences, Chongqing, 400016,China; 2.Department of Applied Physics, School of Mathematica Scientia, Chongqing Institute of technology, Chongqing, 400050, China |
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| Abstract: | A digital-controlled measuring instrument for hearing, which is based on a single-chip microcomputer and highly integrated device, is introduced in this paper. It may output highly accurate and purified sine signal whose frequency and amplitude are controlled by digital. Specially, the displaying number of decibel is equal to actual number of decibel, because frequency response of earphone is corrected by software of microchip. Besides, touching buttons, which is simple and convenience for users, is selected. So this instrument is convenient to measure and teach about hearing, specially, research and study on frequency characteristic of human ear and impedance characteristic of human body in medical science. |
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| Keywords: | Single Chip Microcomputer digital-controlled hearing |
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