US 11,852,483 B1Granted

Dither motor apparatus with pickoff embedded drives for ring laser gyroscope

AssigneeHoneywell International Inc.

InventorsJens M Henrickson, Lori J Armon, Robert Alan Martinson, Rory J. Balzar, Steven Edward Peter

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Abstract

Drive-embedded dither pickoff embodiments for a dither motor of a ring laser gyroscope are disclosed. In one embodiment, an apparatus comprises a dither motor comprising an outer rim; a hub section; and a plurality of reeds that couple the hub section with the outer rim. A first pickoff embedded drive transducer is mounted on a first side of at least one reed. The first pickoff embedded drive transducer includes a first pickoff section, and a first drive section that is separated from the first pickoff section by a first insulative gap. A second pickoff embedded drive transducer is mounted on a second side of the at least one reed in a back-to-back relationship with the first pickoff embedded drive transducer. The second pickoff embedded drive transducer includes a second pickoff section, and a second drive section that is separated from the second pickoff section by a second insulative gap.

Claims20

Dependent claims

An apparatus comprising:

a dither motor configured for at least one ring laser gyroscope (RLG), the dither motor comprising:
an outer rim;
a hub section within the outer rim;
a plurality of reeds that couple the hub section with the outer rim, the reeds each having a first side and an opposing second side;
a first pickoff embedded drive piezoelectric transducer mounted on the first side of at least one reed, the first pickoff embedded drive piezoelectric transducer including a first pickoff section, and a first drive section that is separated from the first pickoff section by a first insulative gap;
and
a second pickoff embedded drive piezoelectric transducer mounted on the second side of the at least one reed in a back-to-back relationship with the first pickoff embedded drive piezoelectric transducer, the second pickoff embedded drive piezoelectric transducer including a second pickoff section, and a second drive section that is separated from the second pickoff section by a second insulative gap;
wherein the first and second pickoff embedded drive piezoelectric transducers operatively work together to reduce second harmonic noise.

5 more elements

Dependencies are inferred from the claim text.