Gyro apparatus with a vibration portion
First Claim
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1. A gyro apparatus comprising:
- (a) a base table;
(b) a vibration member having a vibration portion with a circular-shaped cross-section;
(c) a support provided in said base table for supporting one end of said vibration member so as to vibrate said vibration portion of said vibration member relative to said base table;
(d) a drive apparatus fixed to said base table for vibrating said vibration portion in a direction in a manner such that said direction of vibration of said vibration portion is conserved to be constant with respect to inertial space regardless of the existence or absence of angular rotation which is applied to said base table around an axis direction (0-0'"'"') of said vibration member;
(e) a displacement detecting apparatus for detecting displacements of said vibration portion in two mutually perpendicular x and y directions which are both perpendicular to said axis direction (0-0'"'"') of said vibration member; and
(f) a computing apparatus which is supplied with an output signal from said displacement detecting apparatus which computes a vibrating direction of said vibration portion relative to said base table.
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Abstract
A gyro apparatus includes a support in a base table for supporting one end of a vibrating member which has a circular cross-section and which is driven by a drive apparatus mounted on the base table to vibrate it in the longitudinal or axial direction. The vibrating member may be light conducting and a light source sends light through it which is projected onto a light detector so as to detect vibrations perpendicular to the axis direction of the vibrating member.
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Citations
13 Claims
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1. A gyro apparatus comprising:
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(a) a base table; (b) a vibration member having a vibration portion with a circular-shaped cross-section; (c) a support provided in said base table for supporting one end of said vibration member so as to vibrate said vibration portion of said vibration member relative to said base table; (d) a drive apparatus fixed to said base table for vibrating said vibration portion in a direction in a manner such that said direction of vibration of said vibration portion is conserved to be constant with respect to inertial space regardless of the existence or absence of angular rotation which is applied to said base table around an axis direction (0-0'"'"') of said vibration member; (e) a displacement detecting apparatus for detecting displacements of said vibration portion in two mutually perpendicular x and y directions which are both perpendicular to said axis direction (0-0'"'"') of said vibration member; and (f) a computing apparatus which is supplied with an output signal from said displacement detecting apparatus which computes a vibrating direction of said vibration portion relative to said base table. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A gyro apparatus comprising:
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(a) a base table; (b) a vibration portion formed so as to become symmetrical with respect to a central axis thereof; (c) a support with a flexible portion for supporting said vibration portion relative to said base table such that said vibration portion is allowed to be angularly moved around an arbitrary axis perpendicular to said central axis; (d) a displacement detecting apparatus for detecting an angular displacement of said vibration portion around two axes perpendicular to said central axis and which are perpendicular to each other; (e) a drive apparatus for applying a torque from said base table to said vibration portion around said two axes; and (f) a computing apparatus for receiving an output signal from said displacement detecting apparatus and for computing the direction of vibration of said vibration portion relative to said base table. - View Dependent Claims (8, 9, 10, 11, 12, 13)
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Specification