Accession Number:

AD0269249

Title:

COMPENSATION OF A DIGITAL INTEGRATING ACCELEROMETER

Descriptive Note:

Corporate Author:

MASSACHUSETTS INST OF TECH CAMBRIDGE INSTRUMENTATION LAB

Personal Author(s):

Report Date:

1959-06-01

Pagination or Media Count:

1.0

Abstract:

Compensation of a Digital Integrating Accelerometer, necessitated by the unusual moding behavior of a nonlinear sampled-data system, is presented. With the system compensated, highest frequency limit cycles are established and system errors are minimized. A new configuration is proposed using a conventional torque generator microsyn as both a torquing and sensing device. The microsyn is commanded by a flip-flop. This pulsed microsyn also presents a convenient and easy method for attaining the compensation. REAC simulation is used to demonstrate the effect of the compensation and to illustrate the systems dynamic behavior. Cross-coupling error is investigated to determine if any appreciable error is introduced. A pure sampled-data approach is presented to show a new method of analysis. The nonlinear difference equation of the compensated system is derived. Acceleration commands are given to the system with and without compensation and the resultant error in the indicated velocity is plotted. Author

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE