主题：寻找助听功能HAC受话器磁感应测试配件

有谁知道能够搭配BK2012   BK3560C或CLIO 8.0可测试助听功能受话器电磁感应的配件厂商或型号？

这些品牌都没有此功能，最好配阳光210+154F,就可以测试HAC,生产线测试配人工耳142EA-S和142F就可以.

Hearing Aid Compatibility Probe

HAC-100, $495.00 - Hearing Aid Compatibility Probe

The Hearing-Aid Compatibility Act of 1988 requires that telephone sets be compatible with hearing aids. CCL has developed a measurement probe to assist in the making of magnetic field intensity measurements as required by the FCC and Canada. The specified pick-up coil has been mounted in a probe that places the pick-up coil in the axial and radial orientations at the proper distances from the telephone set receiver. The model HAC 100 includes an Axial Test Probe, a Radial Test Probe, Instruction Manual and Storage Bag.

Communication
Certification Laboratory
1940 West Alexander St
Salt Lake City, UT 84119

Tel: 801.972.6146
Fax: 801.972.8432
Email: info@cclab.com

测试无线话机的垂直与横向方向的磁场特性

 

由于2007年3月份美国通信工业协会（TIA）发布了一项新标准TIA-1083“电话终端设备电话听筒磁性测量程序和性能要求”。

该标准定义了有线电话中电话听筒产生的声频磁性噪音的测量程序和性能要求。它处理的是FCC法规中第68部分以外的磁性干扰问题。

针对新标准TIA-1083：2007，台湾阳光电子开发一产品Model-254F HAC Probe 磁场传感器及 Model-254AP HAC Preamplifier 前置放大器，配套1700系列电话分析仪可用来测试无线话机的垂直(Perpendicular Orientation) 与横置(Transverse Orientation)方向的磁场特性,以符合TIA-1083的规范。

以下是 TIA-1083的规范测试项目及要求:

l         Perpendicular Orientation:

1.Perpendicular Field Intensity @ 1KHz ; >= -22dB(A/m).

2.Perpendicular THD @ 1KHz ; <= 10%.

3.Perpendicular Induced Voltage Frequency Response.

4.Perpendicular A-weighted Noise ; <= -40dB(A/m).

5.Perpendicular Signal-to-Noise Ratio ; >= 45dB.

l         Transverse Orientation:

1.Transsverse Field Intensity @ 1KHz ; >= -27dB(A/m).

2.Transsverse THD @ 1KHz ; <= 10%

3.Transsverse A-weighted Noise ; <= -40dB(A/m).

4.Transsverse Signal-to-Noise Ratio ; >= 45dB.

   此项新产品 Model-254F HAC Probe 磁场传感器及 Model-254AP HAC Preamplifier 前置放大器，交货给负责台湾电子产品进口检验,出口检验以及委托测试的最专业机构：台湾电子检验中心.，IECQ TAF 认可的实验室，同时也接受台湾商品检验局的委托,负责多种电子产品的进口检验,为消费者的使用安全提供保证.

台湾电子检验中心也是多家知名公司认可的测试实验室,如:Motorola,Thomson...; Model-254F及Model-254AP Thomson 公司已定购使用, 而台湾电子检验中心是 Thomson 公司的全球唯一授权做此项测试认证的机构.

CCLAB 可以搭配CLIO使用吗？

http://www.szblst.com/news001.asp?id=165   怎么这么熟悉，主要是针对成品机测试，单体受话器不合适．测试时还需要配1700使用.

一个都测试不准确！！IEEE63.19去年就规定不可以用手工的PROBE来测试HAC！
因为感应线圈的太小，位置偏移点测试结果和标准的相差很大！
RIM  SONYERRISION 都是用的机械手

此主题相关图片如下：003.jpg


这种怎样?

Model - 154F     H. A. C. Test Fixture

用以測定 電話機 (或Receiver 單體) 的軸向、徑向磁場強度及頻響曲線，可測試美國 EIA RS 504 及 ITU-T、CSA、FCC、ETS 等五種國家標準。

Model - 154F     H. A. C. Test Fixture

此主题相关图片如下：hac.jpg

什么是HAC测试？
手机和助听设备同时使用时会产生相互干扰，因此，联邦通信委员会（FCC）要求测试手机和助听设备的兼容性，使用助听的两种模式：microphone模式和telecoil模式的兼容性都需测量， FCC设定等级以计算干扰的风险：
M rating指 microphone模式
T rating指 telecoil模式
美国国家标准局（ANSI）在2001年采用ANSI C63.19标准，根据联邦通信委员会（FCC）的规定，每个厂商所生产的大部分手机都必须符合HAC兼容（M3-4和T3-4）。

如何定义HAC?
HAC rating测试分为两步：
RF 测试（HA microphone 模式）：使用E场和H场的微型探头测试手机所发出的近场的电场和磁场。
音频测试（HA telecoil 模式）：测试使用T线圈探头测试手机所发出的磁场

文件编号:	IEEE Std (ANSI) C63.19:2007
参考名称:	Methods of Measurement of Compatibility Between Wireless Communication Devices and Hear ring Aids IEEE C63.19 , ANSI C63.19 , ANSI-C63.19

此标准不知谁有?

The Working Group will maintain the HACTS document. This document is a composite
of the wireless manufacturers/labs test efforts based the latest version of the C63.19
standard. Attached to this specification as an appendix is the C63.19 standard reflecting
the most recent changes initiated by the Working Group. Changes made to the HACTS
document are tracked and given to the IEEE C63.19 Working Group as a contribution for
change. Future changes to the standard will result from lessons learned during the round
robin test efforts and implemented in the HACTS document using the fast track process.

Elimination of the simulated ear in T-coil test process: The C63.19 standard
was based on the work that had been done on landline phones. A landline phone is
sealed against the ear when in use. Thus, a sealed ear was specified in performing
the T-Coil test. Wireless phones do not typically seal to the ear when in use and
the use of the sealed ear in the T-coil test was inducing errors. There are at least
four (4) different types of simulated ears that could be needed to match the
different types of wireless devices. The Working Group members came up with
an alternative test method that eliminates the need for simulated ears in the T-coil
test. The new method is far less error prone than the old method and should result
in a more consistent T-coil test. This change has subsequently been accepted in
the latest version of the C63.19 standard.

到目前为止，我只看见过深圳有一家公司有这种系统，价格相当昂贵，需要100W左右,好像常州有一家电声厂也有.中小型企业根本不敢想象.

测受话器的话，阳光的够了吧，不一定要这么烧钱买这台！

此主题相关图片如下：

看到过三维的测试图,可惜找不到原文了.

磁场H的分布,是三维的,跟距离和方向都有关系,且不成线性关系.