Accession Number:

AD0261660

Title:

LOW FREQUENCY GYRATOR DEVELOPMENT

Descriptive Note:

Corporate Author:

CLEVITE CORP CLEVELAND OHIO

Report Date:

1961-06-20

Pagination or Media Count:

1.0

Abstract:

Network synthesis of series and parallel neutralizing net orks is described and results presented. Effect of these networks on pass direceved by adding a single reactance in parallel or series with the EM gyrator. EM gyrators, each consisting of a magnetostrictive ferrite plate bonded to a piezoelectric plate, were designed using composite beam theory. These structures perform well in both flexural and longitudinal modes, and hence cover a wide fr tion insertion loss is examined theoretically.An efficient isolator, with a narrow band of rejection in the stop direction and low insertion loss in the pass direction, is achieved by adding a single reactance in parallel or series with the EM gyrator. EM gyrators, each consisting of a magnetostrictive ferrite plate bonded to a piezoelectric plate, were designed using composite beam theory. These structures perform well in both flexural and longitudinal modes, and hence cover a wide frequency range. In both cases, signal take-off from the magnetostrictive bar is effected by a coil wrapped either around the ferrite before bonding or around the composite structure. Optimum bias for the ferrite is provided by strategic location of a permanent magnetic. A second type of EM gyrator, consisting of an electrodynamic transducer coupled to a piezoelectric Bimorph, was investigated and found to be far less efficient than the piezoelectric-piezomagnetic system. Author

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE