BS G 122-1949 Specification for aircraft magnetic compass remote-reading (gyro-stabilized)《航空用遥控读数(陀螺稳定的)磁罗盘规范》.pdf

上传人:wealthynice100 文档编号:582808 上传时间:2018-12-15 格式:PDF 页数:8 大小:240.34KB
下载 相关 举报
BS G 122-1949 Specification for aircraft magnetic compass remote-reading (gyro-stabilized)《航空用遥控读数(陀螺稳定的)磁罗盘规范》.pdf_第1页
第1页 / 共8页
BS G 122-1949 Specification for aircraft magnetic compass remote-reading (gyro-stabilized)《航空用遥控读数(陀螺稳定的)磁罗盘规范》.pdf_第2页
第2页 / 共8页
BS G 122-1949 Specification for aircraft magnetic compass remote-reading (gyro-stabilized)《航空用遥控读数(陀螺稳定的)磁罗盘规范》.pdf_第3页
第3页 / 共8页
BS G 122-1949 Specification for aircraft magnetic compass remote-reading (gyro-stabilized)《航空用遥控读数(陀螺稳定的)磁罗盘规范》.pdf_第4页
第4页 / 共8页
BS G 122-1949 Specification for aircraft magnetic compass remote-reading (gyro-stabilized)《航空用遥控读数(陀螺稳定的)磁罗盘规范》.pdf_第5页
第5页 / 共8页
亲,该文档总共8页,到这儿已超出免费预览范围,如果喜欢就下载吧!
资源描述

1、BRITISH STANDARD BSG122:1949 Specification for Aircraft magnetic compass Remote-reading (gyro-stabilized)BSG122:1949 This BritishStandard, having been approved by the Aircraft Industry Standards Committee and endorsed by the Chairman ofthe Engineering Divisional Council, was published under theautho

2、rity of the General Council ofthe Institution on 15December1949 BSI 02-2000 ISBN 0 580 34522 X A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does

3、not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, pagesi andii, pages1 and2 and a back cover. This standard has been updated (see copyright date) and may have had amendments incorporated. This will be indicated in the

4、 amendment table on the inside front cover. Amendments issued since publication Amd. No. Date CommentsBSG122:1949 BSI 02-2000 i Contents Page 1 Definition 1 2 General construction 1 3 Detailed construction 1 4 Operating conditions 2 5 Accuracy 2 6 Vibration 2ii blankBSG122:1949 BSI 02-2000 1 Preferr

5、ed maximum size: Designs incorporating a gyroscope of the direction indicator type for mounting on the flight instrument panel. Fixing holes: Four fixing holes spaced4.75in. vertically and4.5in. horizontally. 1 Definition For the purpose of this BritishStandard the term “remote-reading magnetic comp

6、ass (gyro-stabilized)” denotes apparatus for indicating the heading of the aircraft, utilizing the magnetic meridian as a datum, of the type in which virtually dead-beat indications are obtained on a master indicator (and repeater indicators, if any), by gyroscopic means, whether by stabilizing the

7、magnetic detector element or by employing this element to monitor the gyroscope or the transmission therefrom. 2 General construction The construction of the instrument shall be mechanically sound, suitable for its purpose, and in accordance with the requirements laid down in BSG100 “General require

8、ments for indicating instruments and electrical apparatus” 1) , with respect to climatic proofing, temperature performance and ability to withstand aircraft vibration. 3 Detailed construction a) The detailed construction of the apparatus shall be in accordance with the relevant requirements laid dow

9、n in BSG100. b) The apparatus shall have a magnetic detector element designed for mounting in a favourable magnetic location, e.g.the wing or tail of the aircraft, and capable of transmitting data to an indicator or indicators suitably placed in the aircraft. c) The combination of the magnetic eleme

10、nt, gyroscope and transmission system shall be such that errors due to acceleration or attitude of the aircraft are effectively reduced, thus affording a sensibly dead-beat and accurate indication on compass indicators provided in the system. d) The apparatus shall be driven electrically. The power

11、supply shall be400cycles,115volts. A.C.nominal. Alternatively or additionally, D.C. power may be used from a nominal24-volt supply. e) The gyroscope shall start and run at a power supply of80per cent of normal voltage. f) The gyroscope shall possess a freedom of 85 in pitch or roll. g) The control p

12、recession rates of the gyroscope shall normally be not more than8 per minute and should be as low as possible consistent with a high degree of reliability. h) In systems which utilize a directional gyro, provision shall be made for switching off the monitoring control at will. Indication shall be gi

13、ven of absence of monitoring control due to switching off or to failure of control in normal operation. A switch shall be provided to isolate the monitoring system leading the power supply to the directional gyro unit alone. In systems which utilize a vertical gyroscope, means shall be provided for

14、clamping the gyroscope in the normal attitude for level flight and an indication of this condition shall be provided for the pilot. j) The course indicating dial(s) shall be calibrated over a range of360 azimuth with markings at the intervals shown below, according to the size of the dial: The treat

15、ed dial markings shall satisfy the requirements of BSG100. k) A settable course-marker for the pilots compass dial shall be provided to indicate the course to be flown; and the preferred presentation shall be a vertical dial with a moving compass card. l) Means shall be provided for correcting the d

16、eviations of the compass. m) Electrical connections to instrument units shall be taken through suitable plugs and sockets, and the case shall either be hermetically sealed or provided with adequate filtered vent holes. Means shall be provided for preventing misting of the inner surface of cover glas

17、ses. n) The apparatus shall be so designed that shock loads, giving an acceleration of50g, in any direction, do not cause permanent derangement of the mechanism. Height 5: in. Width 5in. Overall length 8in. 1) In course of preparation. Navigators indicator, 1 or2 intervals. Pilots indicator, 2 or5 i

18、ntervals,BSG122:1949 2 BSI 02-2000 4 Operating conditions The apparatus shall function without derangement and to the limits of accuracy specified in Clause5 over the ranges of temperature and on the varying supply conditions specified in BSG100. 5 Accuracy The following performance requirements sha

19、ll be maintained with nominal power supply(400cycles,115volts,A.C.;24volts D.C.), and throughout the following temperature range: At nominal power supply conditions and earths field strength of0.18 oersted horizontal and0.43 oersted vertical component, the pilots indicator shall have no errors great

20、er than1; on any heading. At the extreme conditions of power supply and at field strength0.08 oersted horizontal and0.88 oersted vertical component, the errors shall not exceed3 on any heading. Corresponding errors at the navigators indicator shall not exceed1 and2 respectively. 6 Vibration The appa

21、ratus shall show no errors outside the tolerance specified in Clause5 when subjected to the varying frequency vibration tests relevant to its installation position in the aircraft laid down in BSG100, and any pointer oscillation shall be within the limits permitted therein. The instrument shall also

22、 withstand the appropriate endurance vibration test laid down in the same standard without damage or derangement. Magnetic detector unit, 70 to+70 C. Other units, 20 to+50 C.blankBSG122:1949 BSI 389 Chiswick High Road London W4 4AL BSIBritishStandardsInstitution BSI is the independent national body

23、responsible for preparing BritishStandards. It presents the UK view on standards in Europe and at the international level. It is incorporated by Royal Charter. Revisions BritishStandards are updated by amendment or revision. Users of BritishStandards should make sure that they possess the latest ame

24、ndments or editions. It is the constant aim of BSI to improve the quality of our products and services. We would be grateful if anyone finding an inaccuracy or ambiguity while using this BritishStandard would inform the Secretary of the technical committee responsible, the identity of which can be f

25、ound on the inside front cover. Tel:02089969000. Fax:02089967400. BSI offers members an individual updating service called PLUS which ensures that subscribers automatically receive the latest editions of standards. Buying standards Orders for all BSI, international and foreign standards publications

26、 should be addressed to Customer Services. Tel:02089969001. Fax:02089967001. In response to orders for international standards, it is BSI policy to supply the BSI implementation of those that have been published as BritishStandards, unless otherwise requested. Information on standards BSI provides a

27、 wide range of information on national, European and international standards through its Library and its Technical Help to Exporters Service. Various BSI electronic information services are also available which give details on all its products and services. Contact the Information Centre. Tel:020899

28、67111. Fax:02089967048. Subscribing members of BSI are kept up to date with standards developments and receive substantial discounts on the purchase price of standards. For details of these and other benefits contact Membership Administration. Tel:02089967002. Fax:02089967001. Copyright Copyright su

29、bsists in all BSI publications. BSI also holds the copyright, in the UK, of the publications of the international standardization bodies. Except as permitted under the Copyright, Designs and Patents Act 1988 no extract may be reproduced, stored in a retrieval system or transmitted in any form or by

30、any means electronic, photocopying, recording or otherwise without prior written permission from BSI. This does not preclude the free use, in the course of implementing the standard, of necessary details such as symbols, and size, type or grade designations. If these details are to be used for any other purpose than implementation then the prior written permission of BSI must be obtained. If permission is granted, the terms may include royalty payments or a licensing agreement. Details and advice can be obtained from the Copyright Manager. Tel:02089967070.

展开阅读全文
相关资源
  • BS ISO IEC 29150-2011 Information technology Security techniques Signcryption《信息技术 安全技术 签密》.pdfBS ISO IEC 29150-2011 Information technology Security techniques Signcryption《信息技术 安全技术 签密》.pdf
  • BS ISO IEC 15408-1-2009 Information technology - Security techniques - Evaluation criteria for IT Security - Introduction and general model《信息技术 安全技术 IT安全评价准则 一.pdfBS ISO IEC 15408-1-2009 Information technology - Security techniques - Evaluation criteria for IT Security - Introduction and general model《信息技术 安全技术 IT安全评价准则 一.pdf
  • BS ISO 7295-1988+A1-2014 Tyre valves for aircraft Interchangeability dimensions《飞机轮胎汽门嘴 互换性尺寸》.pdfBS ISO 7295-1988+A1-2014 Tyre valves for aircraft Interchangeability dimensions《飞机轮胎汽门嘴 互换性尺寸》.pdf
  • BS ISO 15118-1-2013 Road vehicles Vehicle to grid communication interface General information and use-case definition《道路车辆 车辆到电力通讯接口 通用信息和使用案例定义》.pdfBS ISO 15118-1-2013 Road vehicles Vehicle to grid communication interface General information and use-case definition《道路车辆 车辆到电力通讯接口 通用信息和使用案例定义》.pdf
  • BS ISO 13765-2-2004 Refractory mortars - Determination of consistency using the reciprocating flow table method《耐熔灰浆 使用往复流动表法测定一致性》.pdfBS ISO 13765-2-2004 Refractory mortars - Determination of consistency using the reciprocating flow table method《耐熔灰浆 使用往复流动表法测定一致性》.pdf
  • BS ISO 10998-2008+A1-2014 Agricultural tractors Requirements for steering《农业拖拉机 操纵要求》.pdfBS ISO 10998-2008+A1-2014 Agricultural tractors Requirements for steering《农业拖拉机 操纵要求》.pdf
  • BS Z 9-1998 Space data and information transfer systems - Advanced orbiting systems - Networks and data links - Architectural specification《空间数据和信息传输系统 高级轨道系统 网络和数据链接 结构规范》.pdfBS Z 9-1998 Space data and information transfer systems - Advanced orbiting systems - Networks and data links - Architectural specification《空间数据和信息传输系统 高级轨道系统 网络和数据链接 结构规范》.pdf
  • BS Z 7-1998 Space data and information transfer systems - ASCII encoded English《空间数据和信息传输系统 ASCII 编码英语》.pdfBS Z 7-1998 Space data and information transfer systems - ASCII encoded English《空间数据和信息传输系统 ASCII 编码英语》.pdf
  • BS Z 5-1997 Space data and information transfer systems - Standard formatted data units - Control authority procedures《航天数据和信息发送系统 标准格式数据单元 控制授权程序》.pdfBS Z 5-1997 Space data and information transfer systems - Standard formatted data units - Control authority procedures《航天数据和信息发送系统 标准格式数据单元 控制授权程序》.pdf
  • BS Z 4-1997 Space data and information transfer systems - Standard formatted data units - Structure and construction rules《航天数据和信息传输系统 标准格式数据单元 结构和构造规则》.pdfBS Z 4-1997 Space data and information transfer systems - Standard formatted data units - Structure and construction rules《航天数据和信息传输系统 标准格式数据单元 结构和构造规则》.pdf
  • 猜你喜欢
    相关搜索

    当前位置:首页 > 标准规范 > 国际标准 > BS

    copyright@ 2008-2019 麦多课文库(www.mydoc123.com)网站版权所有
    备案/许可证编号:苏ICP备17064731号-1