ANSI IEEE 517 ERTA-2014 Errata to Specification Format Guide and Test Procedure for Single-Degree-of-Freedom Rate-Integrating Gyros.pdf

1、20 August 2014 Product STD5173E Copyright 2014 by The Institute of Electrical and Electronics Engineers, Inc. All rights reserved. Published 2014. Printed in the United States of America. This correction sheet may be freely reproduced and distributed in order to maintain the utility and currency of

2、the underlying Standard. This correction sheet may not be sold, licensed or otherwise distributed for any commercial purposes whatsoever. The content of this correction sheet may not be modified. 20 August 2014 Product STD5173E IEEE Std 517-1974 (R2005) Page 6, 3.3.14.2 Repeatability should be corre

3、cted to read as follows (Note that the sigma symbol was subscripted and should not be): _ rad/h, /h maximum spread, 1, _ . Page 24, 6.3 Model Equation (the 5th line of the equation) should be corrected to read as follows (Note that the word squared was missing from the parenthetical statement): (acc

4、eleration-squared-sensitive drift rate) Page 29, 10.1 Examination of Product (Mechanical) should be corrected to read as follows (Note that the word “determine” was incorrectly shorted to “mine”): The gyro shall be inspected visually and dimensionally for proper identification, surface finish, and f

5、or defects in workmanship to determine that it conforms to the requirements of Section _. Page 50, Figure 3 caption should be corrected to read as follows (Note that the word “or” was misspelled as “of”): Figure 3 Vibration Drift Test Orientations (Note: axes orientations are parallel or 45 to the a

6、cceleration vector within _.) IEEE Std 517-1974 (R2005) Errata Issued 26 April 2010 Page 65, Appendix and definition are spelled incorrectly in errata and should be corrected to read as follows: Page 65, Appendix B.2 Model Equation, the definition should be corrected to read as follows: Page 37, Pha

7、se is spelled incorrectly in errata and should be corrected to read as follows: Page 37, 10.6.3.2 Phase Shift and Electrical Null, the first paragraph should be corrected to read as follows: IEEE Standard Title, Test, Procedure and Integrating are spelled incorrectly in the title and should be corre

8、cted to read as follows: Errata to IEEE Standard Specification Format Guide and Test Procedure for Single-Degree-of-Freedom Rate-Integrating Gyros NOTE: Archival errata of 26 April 2010 for IEEE Std 517 -1974 (R2010) follows. IEEE Std 517-1974(R2005)Errata to IEEE Standard Specification Format Guide

9、 and Teste Procudure for Single-Degree-of-Freedom Rate- Intergating GyrosSponsorGyro and Accelerometer Panelof theIEEE Aerospace and Electronic Systems SocietyCorrection SheetIssued 26 April 2010Copyright 2010 by the Institute of Electrical and Electronics Engineers, Inc. All rights reserved. Publis

10、hed 2010.Printed in the United States of America.This correction sheet may be freely reproduced and distributed in order to maintain the utility and currency of theunderlying Standard. This correction sheet may not be sold, licensed or otherwise distributed for any commercialpurposes whatsoever. The

11、 content of this correction sheet may not be modified. Correction Sheet to IEEE Std 517-1974STDPD5173 26 April 2010Page 6, 3.3.14.1 Drift Rate should be corrected to read as follows:DF, 0 _ rad/h, /h.Page 25, 6.3 Model Equation the definition of DIOaIaS, should be corrected to read as follows:DIOaIa

12、S= drift rate attributable to the product of accelerations along the input axis and the spinaxis, where DISis a drift rate coefficient.Page 37, 10.6.3.2 PPhase Shift and Electrical Null, the first paragraph should be corrected to read asfollows:Using the torquer, rotate the gyro gimbal until the pic

13、koff output at the previously measured phase angle is aminimum. Record this voltage as the in-phase null, a voltage 90 out-of-phase with this voltage as thequadrature voltage, and the total voltage.Page 46, 10.12.3.3.2, the second paragraph (immediately after the text box) should be corrected toread

14、 as follows:Connect the table rate monitoring signal and the gyro pickoff output to the phase measuring equipment.Operate the oscillating rate table at an amplitude that is sufficient to generate an easily discernible signal fromthe pickoff, but not so high as to cause the gimbal to contact the stop

15、s. Vary the frequency of the table ratedrive until the phase measurement equipment indicates a phase difference of 45 _ . Record thetable drive frequency.Page 59, 10.15.3.3, the third paragraph should be corrected to read as follows:Remount the gyro in the fixture with the IRA axis parallel to table

16、 rotational axis within _ arcminutes. Operate the gyro in a rate-sensing mode (Section 8.2) in accordance with the standard testconditions of Section 9.1, connecting the gyro to torquer current measuring equipment. Orient the table sothat the gyro IRA is vertical within _ arc minutes and the ORA is

17、north within _ arcminutes. Rotate the table approximately _ toward the ORA east and allow _ minutesfor the gyro to stabilize. Rotate the table back to ORA north within arc minutes at a smooth rate of_ _ /s. Stop the table and record torquer current versus time until a final value isreached. Repeat t

18、he test by returning to north from the opposite direction.Page 59, 10.15.3.3, the fourth paragraph should be corrected to read as follows:Remount the gyro in the fixture with the SRA parallel to table rotational axis within _ arc minutes.Operate the gyro in a rate-sensing mode (Section 8.2) in accor

19、dance with the standard test conditions ofSection 9.1. Connect the gyro to torquer current recording equipment. Orient the table so that the gyro ORAis vertical within _ arc minutes and the SRA north within arc minutes. Rotate the table clockwiseapproximately 180 at a smooth rate of _ _ /s. Stop the

20、 table and record torquercurrent versus time until a final value is reached. Repeat the test by rotating counterclockwise to the originalposition.Page 65, Apendeix B.2 Model Equation, the DIIaI2 defintion should be corrected to read as follows:= drift rate attributable to the square of acceleration along the IA, where DIIis a drift rate coefficient.