11.180.15 标准查询与下载

NF C97-621/A1:1999 NF EN 60118-1-1995的修改件1

Modification 1 of NF EN 60118-1-1995

NF C97-624:1998 助听器.第4部分:助听器用音频感应回路中的磁场强度

Hearing aids. Part 4 : magnetic field strength in audio-frequency induction loops for hearing aid purposes.

NF C97-624/A1:1998 NF EN 60118-4-1998的修改件1

Modification 1 of NF EN 60118-4-1998

BS EN 60118-4:1998 助听器.助听用音频感应环路的磁场强度

Gives a standard value of magnetic field strength in audio-frequency induction loops for hearing aid purposes that will give an adequate signal-to-noise ratio without overloading the hearing aid.

Hearing aids - Magnetic field strength in audio-frequency induction loops for hearing aid purposes

DS/EN 60118-14:1998 助听器 第14部分：数字接口规范

This standard specifies the electrical and mechanical requirements for an interface device, to allow a general purpose device such as a desktop computer to connect to hearing aids, for the purpose of electrical setting of their operating parameters.

Hearing aids - Part 14: Specification of a digital interface

DIN EN 60118-14:1998 助听器.第14部分:数字接口的规范

The document specifies the electrical and mechanical requirements for an interface device to allow a general-purpose control device such as a desktop computer to be connected to hearing aids, for the purpose of electrical setting of their parameters. It is restricted to the digital interface between the control device and the hearing aid. The specifications are for use in connection with hearing aids with parameters set by a direct electrical connection using a cable. They do not cover hearing aids with parameters controlled by radio frequency or infrared transmission, or any other wireless method of control.

Hearing aids - Part 14: Specification of a digital interface (IEC 60118-14:1998); German version EN 60118-14:1998

IEC 60118-1:1995/AMD1:1998 助听器.第1部分:感应拾音线圈输入的助听器.补充件1

This standard is Hearing aids - Part 1: Hearing aids with induction pick-up coil input; Amendment 1.

Hearing aids - Part 1: Hearing aids with induction pick-up coil input; Amendment 1

BS EN 60118-14:1998 助听器 数字接口设备的规范

Restricted to digital interface between control device and hearing aid with parameters set by direct electrical connection using a cable.

Hearing aids. Specification of a digital interface device

IEC 60118-4/AMD1:1998 助听器 第4部分:助听器的声频感应线圈中的磁场强度 修改1

Hearing aids - Part 4: Magnetic field strength in audio-frequency induction loops for hearing aid purposes; Amendment 1

DS/EN 60118-2/A2:1998 助听器 第2部分：带自动增益控制电路的助听器

The Standard gives uniform methods for specifying dynamic and static performance characteristics of hearing aids with automatic gain control circuits together with the relevant methods of measurement for these characteristics.

Hearing aids - Part 2: Hearing aids with automatic gain control circuits

DIN EN 60118-2:1998 助听器.第2部分:带自动增益控制电路的助听器

The document aims at the use of broad band input signals for the measurement of the characteristics of hearing aids employing automatic gain control. For this purpose, the characteristics of stochastic signals and test conditions are specified and the required measurements are described.#,,#

Hearing aids - Part 2: Hearing aids with automatic gain control circuits (IEC 60118-2:1983 + A1:1993 + A2:1997); German version EN 60118-2:1995 + A2:1997

IEC 60118-14:1998 助听器 第14部分:数字接口装置的规范

This part of IEC 60118 specifies the electrical and mechanical requirements for an interface device to allow a general-purpose control device such as a desktop computer to be connected to hearing aids, for the purpose of electrical setting of their operating parameters. There is no specification of anything within the hearing aid, such as types of parameters and their signal processing characteristics, nor is there any specification of the parameter setting procedure - the method used to determine which settings are most appropriate to the person wearing the hearing aid. This standard is restricted to the digital interface between the control device and the hearing aid. This standard provides a specification such that all hearing aids which can be programmed by the specified digital interface may have their parameters set by a single control device and interface device. The specifications of this standard are for use in connection with hearing aids with parameters set by a direct electrical connection using a cable. They do not cover hearing aids with parameters controlled by radio frequency or infrared transmission, or any other "wireless" method of control.

Hearing aids - Part 14: Specification of a digital interface device

NF C97-622/A2:1997 NF EN 60118-2-1996的修改件2

Modification 2 of NF EN 60118-2-1996

IEC 60118-2:1983/AMD2:1997 助听器 第2部分:自动增益控制电路的助听器 修改2

This standard is Hearing aids - Part 2: Hearing aids with automatic gain control circuits; Amendment 2.

Hearing aids - Part 2: Hearing aids with automatic gain control circuits; Amendment 2

DS/EN 60118-12:1997 助听器 第12部分：电连接器系统的尺寸

This International Standard applies to plugs and connector systems for hearing aids and specifies the dimensions and their tolerances essential for ensuring interchangeability.

Hearing aids - Part 12: Dimensions of electrical connector systems

BS EN 60118-2:1996 助听器.第2部分:带自动增益控制电路助听器电声特性测量方法

1 This standard applies to the hearing aids of any type with automatic gain control (AGC) circuits. This standard gives uniform methods for specifying dynamic and static performance characteristics of hearing aids with AGC circuits together with the relevant methods of measurement for these charac-teristics. This standard is confined to a description of the different characteristics and the relevant methods of measurement. It does not attempt to specify performance requirements. 2 This standard includes devices which have compression and/or limiting properties with respect to the envelope of the input signal. Devices which control the long-term average output level are also included. a) AGC is employed to obtain compression, or the reduction of the dynamic range of the sound at the output, with the object of preserving the integrity of the input waveform. b) AGC circuits instead of clipping devices are often used for limiting purposes. A limiting effect occurs when the input/output characteristic flattens out at higher input levels. Limiting action is mainly used as a means of preventing excessive output sound from the hearing aid from reaching the listener's ear. 3 This standard does not include: a) Expanders. b) Clipping devices, which cut off the signal peaks above a certain level; such devices differ basically from AGC circuits, which, in a steady state, tend to preserve the waveform of the input signal. Note. - An AGC circuit with very short recovery time may cause considerable distortion, especially in the low-frequency range. This should be given special attention.

Hearing aids - Methods for measurement of electroacoustical characteristics of hearing aids with automatic gain control circuits

IEC 60118-12:1996 助听器 第12部分:电连接器系统的尺寸

This International Standard applies to plugs and connector systems for hearing aids and specifies the dimensions and their tolerances essential for ensuring interchangeability.

Hearing aids - Part 12: Dimensions of electrical connector systems

DS/EN 60118-2:1996 助听器 第2部分：带自动增益控制电路的助听器

Gives uniform methods for specifying dynamic and static performance characteristics of hearing aids with automatic gain control circuits together with the relevant methods of measurement for these characteristics.

Hearing aids - Part 2: Hearing aids with automatic gain control circuits

DS/EN 60118-0+A1:1996 助听器 第0部分：电声特性的测量

Defines the measurement of physical performance characteristics of air-conduction hearing aids based on a free-field technique and measured with an ear simulator. Describes methods of measurement for evaluation of the electroacoustical characteristics of hearing aids.

Hearing aids - Part 0: Measurement of electroacoustical characteristics

NF C97-622:1996 助听器.第2部分:带自动增益控制电路的助听器

Hearing aids. Part 2 : hearing aids with automatic gain control circuits.