AWA14423、AWA14425型电容传声器应用静电激励器法测试自由场频响的修正
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- 英文论文题名：Correctors of free-field response by electrostatic actuator method for measurement condenser microphone type AWA14423 and AWA14425
- 论文作者：张宁
- 英文论文作者：ZHANG Ning ; Sound and Vibration Lab ; Hangzhou aihua Instruments co. ; LTD
- 年：2016
- 作者机构：杭州爱华仪器有限公司声学振动实验室;
- 论文关键词：工程测量传声器 ; 自由场频率响应 ; 静电激励器法 ; 频响修正
- 英文论文关键词：project measurement microphone ; free-field response ; electrostatic actuator ; correctors of frequency response
- 会议召开时间：2016-08-21
- 会议录名称：2016’中国西部声学学术交流会论文集
- 语种：中文
- 分类号：TN641
- 学会代码：SXJS
- 会议名称：2016’中国西部声学学术交流会
- 会议地点：中国四川成都
- 主办单位：中国声学学会微声学分会、中国声学学会物理声学分会、陕西省声学学会、浙江省声学学会、山东省声学学会、上海市声学学会、黑龙江省声学学会、水声技术重点实验室、重庆市声学学会、西安市声学学会、四川省声学学会
- 学会名称：《声学技术》编辑部
- 页数：3
- 文件大小：342k
- 原文格式：D
- 会议级别：全国
摘要
用于工程噪声测量的电容传声器,频率响应特性是其重要的声学特性参数之一。杭州爱华仪器有限公司生产的AWA14423、AWA14425型自由场电容传声器根据其性能指标,符合工程1级测量传声器(PM2F)的要求(参照行业标准SJ/T 10724—2013~([1]))。主要配备在工程测试系统的数据采集前端,尤其是配置在声级计。获得这类传声器的自由场频率响应,最直接的方法是在自由场中,通过与标准传声器比对得到~([2])。但是,在实际测试过程中,自由场实现的设施建设是昂贵的,操作较为不便。因此,考虑使用静电激励器法~([3])或声校准器法进行间接测试。这里通过实验给出了AWA14423、AWA14425型传声器使用静电激励器法测试自由场频响所需的修正。
The frequency response characteristics of condenser microphone used for engineering tests is an important parameter. The free-field condenser microphone type AWA14423、AWA14425 which was made by Hangzhou aihua Instruments co.,LTD fully conform to the specifications of class 1 project measurement microphone given in the SJ/T 10724—2013~([1]).They are used as data acquiring ends in engineering tests, especially used as a key kit on the sound level meters. The directly access to verify the free-field response of these kinds of microphone is comparing with the standard microphone in the free-field~([2]). Actually, achieving free field need a big budge. And the work is overloaded. So the of electrostatic actuator method~([3]) or multi-functional sound calibrator method is used to verify the free-field response of microphones indirectly. We acclaim the correctors used for verifying free-field response of microphone of type AWA14423、AWA14425 by electrostatic actuator method.
The frequency response characteristics of condenser microphone used for engineering tests is an important parameter. The free-field condenser microphone type AWA14423、AWA14425 which was made by Hangzhou aihua Instruments co.,LTD fully conform to the specifications of class 1 project measurement microphone given in the SJ/T 10724—2013~([1]).They are used as data acquiring ends in engineering tests, especially used as a key kit on the sound level meters. The directly access to verify the free-field response of these kinds of microphone is comparing with the standard microphone in the free-field~([2]). Actually, achieving free field need a big budge. And the work is overloaded. So the of electrostatic actuator method~([3]) or multi-functional sound calibrator method is used to verify the free-field response of microphones indirectly. We acclaim the correctors used for verifying free-field response of microphone of type AWA14423、AWA14425 by electrostatic actuator method.
引文
[1]SJ/T 10724—2013测量电容传声器通用规范SJ/T10724—2013Electroacoustics—General specification of measurement condenser microphones
[2]JJG 188—2002声级计检定规程JJG 188—2002 Verification Regulation of Sound Level Meters
[3]JJF 175—2015工作标准传声器(静电激励器法)JJF 175—2015Verification Regulation of Working Standard Microphones(Electrostatic Actuator Method)
[4]IEC 61672-2:2013 Electroacoustics Sound Level Meters-Part 2:Pattern Evaluation Tests
[2]JJG 188—2002声级计检定规程JJG 188—2002 Verification Regulation of Sound Level Meters
[3]JJF 175—2015工作标准传声器(静电激励器法)JJF 175—2015Verification Regulation of Working Standard Microphones(Electrostatic Actuator Method)
[4]IEC 61672-2:2013 Electroacoustics Sound Level Meters-Part 2:Pattern Evaluation Tests