指向性检测

T/SUCA 030-2022 可变指向性扬声器系统主要性能技术要求

可变指向性扬声器系统可以按需改变指向特性，目前已越来越多的运用于各类声学场景，需要明确这类扬声器系统的技术要求，以使其使用更加合理规范

Technical Requirements for Main Characteristics of Directivity-changeable Loudspeaker Systems

T/SUCA 029-2022 可变指向性扬声器系统主要性能测量方法

可变指向性扬声器系统可以按需改变指向特性，目前已越来越多的运用于各类声学场景，需要明确这类扬声器系统的主要性能测量方法，以使其使用更加合理规范

Methods of Measurement for Main Characteristics of Directivity-changeable Loudspeaker Systems

NF C93-903-20-2004 纤维光学互连设备和源元件.基本试验和测量过程.第3-20部分:检验和测量.光纤分支设备的指向性

Fibres optic interconnecting devices and passive components - Basic test and measurement procedures - Part 3-20 : examinations and measurements - Directivity of fibre optic branching devices.

BS EN 61300-3-20-2002 光纤互联装置和源部件.基本试验和测量程序.检验和测量.光纤分路器的指向性

The purpose of this part of IEC 61300 is to measure the directivity of light between channels of a multiport non-wavelength-selective MxN fibre optic

Fibre optic interconnecting devices and passive components - Basic test and measurement procedures - Examinations and measurements - Directivity of fibre optic branching devices

DIN EN 61300-3-20-2002 纤维光学互连器件和源元件.基本试验和测量程序.第3-20部分:检查和测量.光纤分路设备的指向性

The purpose of this procedure is to measure the directivity of light between channels of a multiport non-wavelength selective MxN fibre optic

Fibre optic interconnecting devices and passive components - Basic test and measurement procedures - Part 3-20: Examinations and measurements; Directivity of fibre optic branching devices (IEC 61300-3-20:2001); German version EN 61300-3-20:2001

T/CAB CSISA0013-2019 人工环境舒适性产品 第2部分：指向性送风型房间空气调节器

规定了通过空调出风端滑动机构的布置，对密闭空间、房间或区域进行任意出风角度的送风、迅速调节室温的指向性送风型房间空气调节器的技术要求及测评方法

Products for the Comfort of the Artificial Environment – Part 2: Directional Air Delivery Room Air Conditioner

EN 15723-2010 轨道交通.抵御环境影响的负载保护装置的关闭和锁定设备.耐用性,操控性,指向性,维修及回收的要求

This European Standard applies to new and upgraded freight wagons where an approval is required. These protecting devices are classified into two

Railway applications - Closing and locking devices for payload protecting devices against environmental influences - Requirements for durability, operation, indication, maintenance, recycling

JJF 1468-2014 指向性声源校准规范

本规范适用于建筑声学等领域测试用的指向性声源的校准

Calibration Specification for Omnidirectional Sound Sources

KS C IEC 61300-3-20:2020 光纤互连器件和源器件 - 基本测试和测量程序 - 第3-20部分:检查和测量 - 光纤分支器件的指向性

Fibre optic interconnecting devices and passive components — Basic test and measurement procedures — Part 3-20: Examinations and measurements — Directivity of fibre optic branching devices

IEC 61300-3-20-2001 光纤互连器件和源器件 - 基本测试和测量程序 - 第3-20部分:检查和测量 - 光纤分支器件的指向性

Fibre optic interconnecting devices and passive components - Basic test and measurement procedures - Part 3-20: Examinations and measurements - Directivity of fibre optic branching devices

T/SUCA 030-2022 可变指向性扬声器系统主要性能技术要求

可变指向性扬声器系统可以按需改变指向特性，目前已越来越多的运用于各类声学场景，需要明确这类扬声器系统的技术要求，以使其使用更加合理规范

Technical Requirements for Main Characteristics of Directivity-changeable Loudspeaker Systems

T/SUCA 029-2022 可变指向性扬声器系统主要性能测量方法

可变指向性扬声器系统可以按需改变指向特性，目前已越来越多的运用于各类声学场景，需要明确这类扬声器系统的主要性能测量方法，以使其使用更加合理规范

Methods of Measurement for Main Characteristics of Directivity-changeable Loudspeaker Systems

NF C93-903-20-2004 纤维光学互连设备和源元件.基本试验和测量过程.第3-20部分:检验和测量.光纤分支设备的指向性

Fibres optic interconnecting devices and passive components - Basic test and measurement procedures - Part 3-20 : examinations and measurements - Directivity of fibre optic branching devices.

BS EN 61300-3-20-2002 光纤互联装置和源部件.基本试验和测量程序.检验和测量.光纤分路器的指向性

The purpose of this part of IEC 61300 is to measure the directivity of light between channels of a multiport non-wavelength-selective MxN fibre optic

Fibre optic interconnecting devices and passive components - Basic test and measurement procedures - Examinations and measurements - Directivity of fibre optic branching devices

DIN EN 61300-3-20-2002 纤维光学互连器件和源元件.基本试验和测量程序.第3-20部分:检查和测量.光纤分路设备的指向性

The purpose of this procedure is to measure the directivity of light between channels of a multiport non-wavelength selective MxN fibre optic

Fibre optic interconnecting devices and passive components - Basic test and measurement procedures - Part 3-20: Examinations and measurements; Directivity of fibre optic branching devices (IEC 61300-3-20:2001); German version EN 61300-3-20:2001

T/CAB CSISA0013-2019 人工环境舒适性产品 第2部分：指向性送风型房间空气调节器

规定了通过空调出风端滑动机构的布置，对密闭空间、房间或区域进行任意出风角度的送风、迅速调节室温的指向性送风型房间空气调节器的技术要求及测评方法

Products for the Comfort of the Artificial Environment – Part 2: Directional Air Delivery Room Air Conditioner

EN 15723-2010 轨道交通.抵御环境影响的负载保护装置的关闭和锁定设备.耐用性,操控性,指向性,维修及回收的要求

This European Standard applies to new and upgraded freight wagons where an approval is required. These protecting devices are classified into two

Railway applications - Closing and locking devices for payload protecting devices against environmental influences - Requirements for durability, operation, indication, maintenance, recycling

JJF 1468-2014 指向性声源校准规范

本规范适用于建筑声学等领域测试用的指向性声源的校准

Calibration Specification for Omnidirectional Sound Sources

KS C IEC 61300-3-20:2020 光纤互连器件和源器件 - 基本测试和测量程序 - 第3-20部分:检查和测量 - 光纤分支器件的指向性

Fibre optic interconnecting devices and passive components — Basic test and measurement procedures — Part 3-20: Examinations and measurements — Directivity of fibre optic branching devices

IEC 61300-3-20-2001 光纤互连器件和源器件 - 基本测试和测量程序 - 第3-20部分:检查和测量 - 光纤分支器件的指向性

Fibre optic interconnecting devices and passive components - Basic test and measurement procedures - Part 3-20: Examinations and measurements - Directivity of fibre optic branching devices