【英文标准名称】:Specificationforconferencesystems:electricalandaudiorequirements
【原文标准名称】:会议系统规范.电气及音频要求
【标准号】:BS7154-1989
【标准状态】:作废
【国别】:英国
【发布日期】:1989-09-29
【实施或试行日期】:1989-09-29
【发布单位】:英国标准学会(GB-BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:阻抗;音频设备;传声器;尺寸;公共寻址系统;电子设备及元件;定义;性能;头戴送受话器;电驱动装置;通信设备;电性质和电现象;颜色;聚会设施;控制板;通信链路;信号失真;磁场效应;指示灯;频率响应;乱真信号;信噪比;电信;电信系统;灵敏度;通讯系统(建筑物);代表会议;声强;衰减;电压;电气公差;音频系统
【英文主题词】:Acousticengineering;Acousticequipment;Acousticpropertiesandphenomena;Acoustictesting;Acoustics;Acoustoelectricdevices;Audioequipment;Communicationtechnology;Conferencesystems;Conferences;Electricalengineering;Electricalequipment;Electricaltesting;Electroacoustics;Frequencyresponse;Headphones;Intelligibility;Interpretersbooths;Microphones;Performance;Specification(approval)
【摘要】:Describesdifferenttypesofsystemusingbothwiredandwirelesstransmissionandspecifiesbasicelectricalrequirementsplustheminimumrequirementsforauxiliaryequipmentusedwiththesystems.
【中国标准分类号】:M72
【国际标准分类号】:33_160_99
【页数】:50P.;A4
【正文语种】:英语


Product Code:SAE AIR1083
Title:Airborne Hydraulic and Control System Survivability for Military Aircraft
Issuing Committee:A-6a2 Military Aircraft Committee
Scope: This SAE Aerospace Information Report (AIR) provides the hydraulic system designer with the various design options and techniques currently available to enhance the survivability of hydraulic systems. A comprehensive knowledge of the hostile environment to which the air vehicle will be exposed will form form the basis upon which the overall design philosophy is formulated. The designer should strive to achieve at the absolute minimum acceptable flying quality level to complete the operational mission for which the aircraft is designed; i.e., the aircraft can be controlled and the mission terminated safely, including landing. This AIR will attempt to address the following threats: a. typical small arms fire (5,56, 7.62, 12.7 and 14.5 mm AP); b. cannon (20, 30, and 40 mm API/HEI);c. NBC/EMI/EMP/beamed particle; and d. chemical/biological. Protection against missiles is beyond the scope of this AIR. Except for electronic counter-measures or evasive maneuvers, no practice technology exists which allows a hydraulic system to survive a direct hit by a missile or large caliber anti-aircraft projectile. The AIR addresses the following major topics: a. design concepts and architecture; b. Design implementation; c. Subsystem mechanization; and d. Component design. gy exists which allows a hydraulic system to survive a direct hit by a missile or large caliber anti-aircraft projectile. The AIR addresses the following major topics: a. design concepts and architecture; b. Design implementation; c. Subsystem mechanization; and d. Component design.