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US5476007A
Expired / Lapsed
US
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Vibrating gyroscope
Assignee: Murata Manufacturing Co Ltd
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Filing: 1993-10-29
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Granted: 1995-12-19
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Expires: 2013-10-29
Abstract
Abstract A vibrating gyroscope includes a vibrating body which is formed into, for example, a square loop. A section of the vibrating body is formed into, for example, a square. Driving piezoelectric elements are formed on upper and lower faces of one piece of the vibrating body. Detecting piezoelectric elements are formed on outer and inner side faces of a piece of the vibrating body whereon the driving piezoelectric element is formed. On a piece adjoining the piece whereon the driving piezoelectric element is formed, the detecting piezoelectric elements are formed. By applying a signal to the driving piezoelectric elements, the vibrating body is subjected to bending vibration, and by measuring an output voltage of the detecting piezoelectric elements, a rotational angular velocity is detected.
Inventors
- 👤 Takeshi Nakamura
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 12:50
CPC Classifications
G; G01; G01C; G01C19/00; G01C19/56; G01C19/5642
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
71 words
A vibrating gyroscope comprising: a vibrating body including a plural number of axial directions wherein said vibrating body is formed into a loop; a driving piezoelectric element for giving bending vibration to said vibrating body; and detecting piezoelectric elements formed along the plural number of axial directions of said vibrating body, and disposed so as not to intersect at right angles with a vibrating direction at non-rotation of said vibrating body.
Claim 2
Dependent Claim
71 words
A vibrating gyroscope comprising: a vibrating body including a plural number of axial directions wherein said vibrating body is formed into a loop; a driving piezoelectric element for giving bending vibration to said vibrating body; and detecting piezoelectric elements formed along the plural number of axial directions of said vibrating body, and disposed so as not to intersect at right angles with a vibrating direction at non-rotation of said vibrating body.
Claim 3
Dependent Claim
61 words
A vibrating gyroscope in accordance with claim 1, wherein said vibrating body is formed into a square loop having a square section, said driving piezoelectric element is formed on, at least, either of upper and lower faces of said vibrating body, and said detecting piezoelectric elements are formed on, at least, either of outer and inner faces of said vibrating body.
Claim 4
Dependent Claim
62 words
A vibrating gyroscope in accordance with claim 1, wherein said vibrating body is formed into a square loop having a square section, said driving piezoelectric element is formed on, at least, either of outer and inner side faces of said vibrating body, and said detecting piezoelectric elements are formed on, at least, either of upper and lower faces of said vibrating body.
Claim 5
Dependent Claim
66 words
A vibrating gyroscope in accordance with claim 1, wherein said vibrating body is formed into a square loop having a triangular section, detecting piezoelectric elements are formed on respective two side faces of one piece and another piece of said vibrating body, and the detecting piezoelectric elements formed on two side faces of one piece of said vibrating body serve also as said driving piezoelectric element.
Claim 6
Dependent Claim
62 words
A vibrating gyroscope in accordance with claim 1, wherein said vibrating body is formed into a square loop having an L-shaped section, said driving piezoelectric element is formed on, at least, either of upper and lower faces of said vibrating body, and said detecting piezoelectric elements are formed on, at least, either of outer and inner side faces of said vibrating body.
Claim 7
Dependent Claim
61 words
A vibrating gyroscope in accordance with claim 1, wherein said vibrating body is formed into a square loop, and respective pieces of said vibrating body are formed into plates having faces which intersect at opposite angle portions of said loop, and said driving piezoelectric element and said detecting piezoelectric elements are respectively formed on the intersecting faces of said vibrating body.
Claim 8
Dependent Claim
120 words
A vibrating gyroscope comprising: a vibrating body including a plural number of axial directions; a driving piezoelectric element for giving bending vibration to said vibrating body; and detecting piezoelectric elements formed along the plural number of axial directions of said vibrating body; and disposed so as not to intersect at right angles with a vibrating direction at non-rotation of said vibrating body, wherein said vibrating body is formed into a shape where end portions of two opposite L-shaped pieces are connected, said detecting piezoelectric elements are formed on three pieces of said vibrating body extending in different directions, and said driving piezoelectric element is formed on a face intersecting with said detecting piezoelectric elements forming faces of said vibrating body.
Claim 9
Dependent Claim
120 words
A vibrating gyroscope comprising: a vibrating body including a plural number of axial directions; a driving piezoelectric element for giving bending vibration to said vibrating body; and detecting piezoelectric elements formed along the plural number of axial directions of said vibrating body; and disposed so as not to intersect at right angles with a vibrating direction at non-rotation of said vibrating body, wherein said vibrating body is formed into a shape where end portions of two opposite L-shaped pieces are connected, said detecting piezoelectric elements are formed on three pieces of said vibrating body extending in different directions, and said driving piezoelectric element is formed on a face intersecting with said detecting piezoelectric elements forming faces of said vibrating body.
References Cited (Backward Citations)
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