17.140.50 电声学 标准查询与下载
共找到 949 条与 电声学 相关的标准，共 64 页
Hearing aids — Part 2: Hearing aids with automatic gain control circuits
- ICS
- 17.140.50
- CCS
- 发布
- 2020-12-28
- 实施
Hearing aids — Part 14: Specification of a digital interface device
- ICS
- 17.140.50
- CCS
- 发布
- 2020-12-28
- 实施
Hearing aids — Part 10: Guide to hearing aid standards
- ICS
- 17.140.50
- CCS
- 发布
- 2020-12-28
- 实施
Hearing aids — Part 1: Hearing aids with induction pick-up coil input
- ICS
- 17.140.50
- CCS
- 发布
- 2020-12-28
- 实施
Hearing aids — Part 2: Hearing aids with automatic gain control circuits
- ICS
- 17.140.50
- CCS
- 发布
- 2020-12-28
- 实施
Hearing aids — Part 6: Characteristics of electrical input circuits for hearing aids
- ICS
- 17.140.50
- CCS
- 发布
- 2020-12-28
- 实施
Hearing aids — Part 9: Methods of measurement of characteristics of hearing aids with bone vibrator output
- ICS
- 17.140.50
- CCS
- 发布
- 2020-12-28
- 实施
Hearing aids — Part 11: Symbols and other markings on hearing aids and related equipment
- ICS
- 17.140.50
- CCS
- 发布
- 2020-12-28
- 实施
Ultrasonics — Pulsed Doppler diagnostic systems —Test procedures to determine performance
- ICS
- 17.140.50
- CCS
- 发布
- 2020-12-28
- 实施
Hearing aids — Part 10: Guide to hearing aid standards
- ICS
- 17.140.50
- CCS
- 发布
- 2020-12-28
- 实施
Hearing aids — Part 5: Nipples for insert earphones
- ICS
- 17.140.50
- CCS
- 发布
- 2020-12-28
- 实施
Ultrasonics — Pulsed Doppler diagnostic systems —Test procedures to determine performance
- ICS
- 17.140.50
- CCS
- 发布
- 2020-12-28
- 实施
本文件规定了个人声暴露计（以下简称声暴露计）的术语和定义、基本要求、技术要求、试验方法、检验规则、标志、包装、运输、贮存和质量承诺。 本文件适用于测量稳态的、间断的、波动的、不规则的或脉冲声的 A 计权声暴露的仪器，符合本标准规范的仪器指定佩带于人体上测量声暴露。
Personal sound exposure meters
- ICS
- 17.140.50
- CCS
- C401
- 发布
- 2020-12-23
- 实施
- 2020-12-31
Electroacoustics -- Octave-band and 1/N (fractional) -octave-band filters -- Part 1: Specifications
- ICS
- 17.140.50
- CCS
- A47
- 发布
- 2020-12-21
- 实施
Ultrasonics - Transducers - Definitions and measurement methods regarding focusing for the transmitted fields
- ICS
- 17.140.50
- CCS
- 发布
- 2020-12-15
- 实施
本文件规定了精密多功能数字声级计（以下简称声级计）的术语和定义、基本要求、技术要求、试验方法、检验规则、标志、包装、运输、贮存和质量承诺。 本文件适用于性能等级为 1 级，频率范围为 10Hz～20kHz 的声级计，内含噪声统计分析仪、倍频程滤波器和/或 1/3 倍频程滤波器等功能。
Multifunctional and digital precision sound level meters
- ICS
- 17.140.50
- CCS
- C401
- 发布
- 2020-11-30
- 实施
- 2020-12-31
Electroacoustics – Audiometric equipment – Part 3: Test signals of short duration
- ICS
- 17.140.50
- CCS
- 发布
- 2020-11-20
- 实施
- 2020-11-20
Scales and sizes for plotting frequency characteristics and polar diagrams (IEC 60263:2020)
- ICS
- 17.140.50
- CCS
- 发布
- 2020-11-16
- 实施
- 2020-11-16
Measurement method for assistive listening functionality (TA 16) (IEC 100/3479/CDV) (english version)
- ICS
- 17.140.50
- CCS
- 发布
- 2020-11-15
- 实施
- 2020-11-15
Ultrasonics－Focusing transducers－Definitions and measurement methods for the transmitted fields
- ICS
- 17.140.50
- CCS
- 发布
- 20201014
- 实施
- 20201014
