Z-axis vibration gyroscope
First Claim
Patent Images
1. An angular velocity sensor comprising:
- a sensing element;
a pair of drive elements defining at least one vibrational node, each of the drive elements being coupled to the sensing element at its respective vibrational node; and
wherein the drive element oscillates about an axis and comprises an inertial mass configured to generate Coriolis forces which are measured by the sensor, and wherein the sensor is vibrationally decoupled from the sensing element.
4 Assignments
0 Petitions
Accused Products
Abstract
An angular velocity sensor is disclosed having a sensing element and a pair of driven mass drive elements. The driven mass drive elements have a support structure which defines at least one vibrational node. the driven mass drive element drive elements are coupled to the sensing element at the node so as to allow the driven mass drive elements to oscillate about an axis to generate Coriolis forces, which are measured by the sensing element.
87 Citations
19 Claims
-
1. An angular velocity sensor comprising:
-
a sensing element;
a pair of drive elements defining at least one vibrational node, each of the drive elements being coupled to the sensing element at its respective vibrational node; and
wherein the drive element oscillates about an axis and comprises an inertial mass configured to generate Coriolis forces which are measured by the sensor, and wherein the sensor is vibrationally decoupled from the sensing element. - View Dependent Claims (2, 3, 4, 5, 6)
-
-
7. An angular velocity sensor comprising:
-
a sensing element;
a pair of driven mass drive elements, said driven mass drive elements having a support structure which defines at least one vibrational node;
wherein the driven mass drive elements are coupled to the sensing element at the vibrational node so as to allow the driven mass drive elements to oscillate about an axis to generate Coriolis forces which are measured by the sensing element. - View Dependent Claims (8, 9)
-
-
10. An angular velocity sensor comprising:
-
a support frame;
a plurality of drive elements each having a support element defining at least one vibrational node, the drive elements being coupled to the support frame at the vibrational node;
a sensing element coupled to the support frame; and
wherein the drive elements oscillate about an axis and comprises an inertial mass configured to generate Coriolis forces. - View Dependent Claims (11, 12, 13, 14, 15, 16)
-
-
17. An angular velocity sensor comprising:
-
a pair of drive elements each having a support element defining at least one vibrational node, the drive elements being coupled to the support frame at the vibrational node;
a sensing element coupled to the drive elements;
a single support member coupled to the sensing and drive elements; and
wherein the drive elements oscillate about an axis and comprises an inertial mass configured to generate Coriolis forces.
-
-
18. An angular velocity sensor comprising:
-
a means for generating Coriolis forces;
a means for sensing Coriolis forces;
a means for coupling said means for generating Coriolis forces and said means for sensing Coriolis forces, said means for coupling having a vibrational node, the vibrational node being disposed between said means for generating Coriolis forces and said means for sensing Coriolis forces. - View Dependent Claims (19)
-
Specification