1、_SAE Technical Standards Board Rules provide that: “This report is published by SAE to advance the state of technical and engineering sciences. The use of this report is entirely voluntary, and its applicability and suitability for any particular use, including any patent infringement arising theref
2、rom, is the sole responsibility of the user.” SAE reviews each technical report at least every five years at which time it may be reaffirmed, revised, or cancelled. SAE invites your written comments and suggestions. Copyright 2011 SAE International All rights reserved. No part of this publication ma
3、y be reproduced, stored in a retrieval system or transmitted, in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without the prior written permission of SAE. TO PLACE A DOCUMENT ORDER: Tel: 877-606-7323 (inside USA and Canada) Tel: +1 724-776-4970 (outside US
4、A) Fax: 724-776-0790 Email: CustomerServicesae.org SAE WEB ADDRESS: http:/www.sae.orgSAE values your input. To provide feedback on this Technical Report, please visit http:/www.sae.org/technical/standards/AS20708/17AAEROSPACESTANDARDAS20708/17A REV. A Issued 1999-07 Revised 2011-02Superseding AS2070
5、8/17 Synchro, Torque Differential Transmitter, Type 15TDX4C FSC 5990 RATIONALEThis Revision consists of a 5 (five) year review, which provides updates to current format and references NOTICEThis specification is approved for use by all Departments and Agencies of the Department of Defense. The requi
6、rements for acquiring the Synchros described herein shall consist of this specification and the latest issue of AS20708. TABLE 1 REQUIREMENTS REQUIREMENT VALUE UNIT TOLERANCE FrequencyPrimary Voltage Primary Current Primary Power Impedance:ZsoZrsImpedance Angle: ZsoZrsTransformation Ratio Phase Shif
7、t (Lead) Electrical Error Torque Gradient Friction Torque Radial Play End Play Temperature Rise Variation of Voltage (+10%) and Freq. (-5%) 40078 215.03.5 375 525 113 138 80.0 84.0 27.0 33.0 1.154 5.0 8.0 0.011 0.05 0.0006 0.0010 20.0 4.9HzVolts MilliampsWatts OhmsOhmsDegreesDegrees- - - - - - Degre
8、esMinutesOunce Inches Per Degree Ounce Inches InchesInchesDegrees C Watts 1 % 1 % MaximumMaximumMin. Max. Min. Max. Min. Max. Min. Max. 2 % MaximumMaximumMinimumMaximumMaximum 0.0005 MaximumMaximumCopyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or netw
9、orking permitted without license from IHS-,-,-SAE AS20708/17A Page 2 of 2TABLE 2 MILITARY PART NUMBER VARIANT CHARACTERISTICS Military Part No. 1/A .010 B .010 GMaximumShaftStyleTerminalEndU 2/+ .0000 - .0002 M20708/17-01CM20708/17-02CM20708/17-03C.555 .500 1.798 1.7981.536SplinedPlain & Slotted Pla
10、in & Slotted Terminal Board Terminal Board Wire Leads .18721/ Military part number M20708/17-01C shall be the NATO standard. 1/ The suffix letter following the numerical dash number corresponds to the latest modification letter in the type designation. 2/ The tolerance for plain and slotted shaft di
11、ameters is + .0000 and .0005. TABLE 3 MILITARY PART NUMBER CROSS-REFERENCES SUPERSEDED MILITARY PART NUMBERS NEW MILITARY PART NUMBERS SAE-AS20708/17AMIL-S-20708/17D MIL-S-20708/17C M20708/17D -001 M20708/17D -002 M20708/17D -003 M20708/17-001 M20708/17-01C M20708/17-02CM20708/17-03CNOTE: All line i
12、tems shown in table 3 refer to equivalent and interchangeable Synchros of the same type designation modification. Part number changes do not affect form, fit, or function of the Synchros listed therein. A change bar (|) located in the left margin is for the convenience of the user in locating areas
13、where technical revisions, not editorial changes, have been made to the previous issue of this document. An (R) symbol to the left of the document title indicates a complete revision of the document, including technical revisions. Change bars and (R) are not used in original publications, nor in documents that contain editorial changes only. PREPARED BY SAE COMMITTEE AE-7A - GENERATORS/CONTROLS/MAGNETIC DEVICES Copyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
