17.140.50 电声学 标准查询与下载
共找到 948 条与 电声学 相关的标准，共 64 页
Ultrasonics - Pulse-echo scanners - Part 1: Techniques for calibrating spatial measurement systems and measurement of system point-spread function response
- ICS
- 17.140.50
- CCS
- C41
- 发布
- 2017-07-01
- 实施
- 2017-07-18
Electroacoustics - Sound level meters - Part 3: Periodic tests (IEC 61672-3:2013); German version EN 61672-3:2013
- ICS
- 17.140.50
- CCS
- N65
- 发布
- 2017-05
- 实施
This document@ which is a Technical Report@ gives recommendations for and guidance on the design@ planning@ installation@ testing@ operation and maintenance of a hearing-loop system (HLS) intended for communicating speech@ music and/or other signals. It is mainly concerned with HLS for hearing enhancement@ in which the signals are communicated to users of hearing aids equipped with magnetic pick-up coils. This document does not apply to induction-loop systems which use a carrier frequency@ nor to other systems for hearing enhancement purposes which do not use magnetic induction.
Code of practice for hearing-loop systems (HLS)
- ICS
- 17.140.50
- CCS
- 发布
- 2017-04-10
- 实施
- 2017-04-12
Amendment 1 - Electroacoustics - Octave-band and fractional-octave band filters - Part 2: Pattern evaluation tests
- ICS
- 17.140.50
- CCS
- 发布
- 2017-04-07
- 实施
Electroacoustics - Octave-band and fractional-octave band filters - Part 2: Pattern evaluation tests
- ICS
- 17.140.50
- CCS
- 发布
- 2017-04-07
- 实施
Electroacoustics - Specifications for personal sound exposure meters
- ICS
- 17.140.50
- CCS
- 发布
- 2017-04-06
- 实施
Electroacoustics - Specifications for personal sound exposure meters
- ICS
- 17.140.50
- CCS
- 发布
- 2017-04-06
- 实施
Electroacoustics - Sound level meters - Part 2: Pattern evaluation tests
- ICS
- 17.140.50
- CCS
- 发布
- 2017-04-04
- 实施
Electroacoustics - Sound level meters - Part 2: Pattern evaluation tests; Amendment 1
- ICS
- 17.140.50
- CCS
- L31
- 发布
- 2017-04
- 实施
- 2017-04-07
This document specifies the relevant characteristics and properties of hydrophones in the frequency range 1 Hz to 500 kHz, and specifies how to report these characteristics. It does not cover performance requirements for specific hydrophone types, or for specific hydrophone applications. However, guidance on the choice of a hydrophone with appropriate performance for a specific application is given in an informative annex. This document is applicable to: hydrophones employing piezoelectric sensor elements, designed to respond to sound pressure in water and measure underwater acoustical signals; hydrophones with or without an integral pre-amplifier.
Underwater acoustics - Hydrophones - Properties of hydrophones in the frequency range 1 Hz to 500 kHz
- ICS
- 17.140.50
- CCS
- N92;N65
- 发布
- 2017-04
- 实施
- 2017-04-12
Ultrasonics - Hydrophones - Part 2: Calibration for ultrasonic fields up to 40 MHz
- ICS
- 17.140.50
- CCS
- 发布
- 2017-03-22
- 实施
Electroacoustics - Audiometric equipment - Part 1: Equipment for pure-tone and speech audiometry
- ICS
- 17.140.50
- CCS
- 发布
- 2017-03-14
- 实施
Sound system equipment: headphones and earphones associated with personal music players - maximum sound pressure level measurement methodology - Part 3: measurement method for sound dose management
- ICS
- 17.140.50
- CCS
- 发布
- 2017-02-01
- 实施
Electroacoustic. Simulators of human head and ear. Part 4. Occluded-ear simulator for the measurement of earphones coupled to the ear by means of ear inserts
- ICS
- 17.140.50
- CCS
- 发布
- 2017-00-00
- 实施
- 2019-01-01
Electroacoustics - Octave-band and fractional-octave band filters - Part 2: Pattern evaluation tests
- ICS
- 17.140.50
- CCS
- 发布
- 2017
- 实施
- 0000-00-00
Electroacoustics - Sound level meters - Part 2: Pattern evaluation tests
- ICS
- 17.140.50
- CCS
- 发布
- 2017
- 实施
- 0000-00-00
Electroacoustics. Measurement microphones. Methods for pressure calibration of working standard microphones by comparison
- ICS
- 17.140.50
- CCS
- L31
- 发布
- 2016-09-30
- 实施
- 2016-09-30
Electroacoustics. Hearing aids. Method for measuring electroacoustic performance up to 16 kHz
- ICS
- 17.140.50
- CCS
- L31
- 发布
- 2016-09-30
- 实施
- 2016-09-30
