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US 2022/0018872 A1Published application
Accelerometer including rectangular coil and rectangular pole piece
AssigneeHoneywell International Inc.
InventorPaul W. Dwyer
Life of this patent
Estimating the term…
Abstract
This disclosure is related to devices, systems, and techniques for determining an acceleration. For example, an accelerometer system includes a proof mass, a pole piece connected to the proof mass, and a coil disposed around the pole piece and connected to the proof mass, where the coil is rectangular in shape. Additionally, the accelerometer system includes circuitry configured to deliver an electrical signal to the coil in order to maintain the proof mass at a null position and determine an electrical current value corresponding to the electrical signal. Additionally, the circuit is configured to identify, based on the electrical current value, an acceleration of the accelerometer system.
Claims20
An accelerometer system comprising:
- a proof mass;
- a pole piece that extends along a longitudinal axis, wherein the pole piece is connected to the proof mass, wherein a cross section of the pole piece is rectangular in shape, wherein the cross section of the pole piece represents a cross section that is perpendicular to the longitudinal axis of the pole piece, and wherein the pole piece comprises a first pole piece outer side, a second pole piece outer side, a third pole piece outer side opposite the first pole piece outer side, and a fourth pole piece outer side opposite the second pole piece outer side;
- a coil having a cross section that is rectangular in shape, wherein the cross section of the coil is perpendicular to the longitudinal axis of the pole piece,
- wherein the coil comprises a first coil inner side, a second coil inner side, a third coil inner side opposite the first coil inner side, and a fourth coil inner side opposite the second coil inner side,
- wherein the coil is disposed around the pole piece so that a first space exists between the first pole piece outer side and the first coil inner side, a second space exists between the second pole piece outer side and the second coil inner side, a third space exists between the third pole piece outer side and the third coil inner side, and a fourth space exists between the fourth pole piece outer side and the fourth coil inner side, wherein the coil is connected to the proof mass;
- and
- circuitry configured to:
- deliver an electrical signal to the coil in order to maintain the proof mass at a null position;
- determine an electrical current value corresponding to the electrical signal;
- and
- identify, based on the electrical current value, an acceleration of the accelerometer system.
8 more elements
(canceled)
A method comprising:
- delivering, by circuitry of an accelerometer system, an electrical signal to a coil in order to maintain a proof mass at a null position, wherein the accelerometer system comprises:
- the proof mass;
- a pole piece that extends along a longitudinal axis, wherein the pole piece is connected to the proof mass, wherein a cross section of the pole piece is rectangular in shape, wherein the cross section of the pole piece represents a cross section that is perpendicular to the longitudinal axis of the pole piece, and wherein the pole piece comprises a first pole piece outer side, a second pole piece outer side, a third pole piece outer side opposite the first pole piece outer side, and a fourth pole piece outer side opposite the second pole piece outer side;
- the coil having a cross section that is rectangular in shape, wherein the cross section of the coil is perpendicular to the longitudinal axis of the pole piece, wherein the coil comprises a first coil inner side, a second coil inner side, a third coil inner side opposite the first coil inner side, and a fourth coil inner side opposite the second coil inner side,
- wherein the coil is disposed around the pole piece so that a first space exists between the first pole piece outer side and the first coil inner side, a second space exists between the second pole piece outer side and the second coil inner side, a third space exists between the third pole piece outer side and the third coil inner side, and a fourth space exists between the fourth pole piece outer side and the fourth coil inner side, wherein the coil is connected to the proof mass;
- and
- the circuitry;
- determining, by the circuitry, an electrical current value corresponding to the electrical signal;
- and
- identifying, by the circuitry based on the electrical current value, an acceleration of the accelerometer system.
7 more elements
(canceled)
An accelerometer system comprising:
- a coil disposed around a pole piece that extends along a longitudinal axis, wherein the coil is connected to a proof mass, wherein a cross section of the pole piece is rectangular in shape, wherein the cross section of the pole piece represents a cross section that is perpendicular to the longitudinal axis of the pole piece, and wherein the pole piece comprises a first pole piece outer side, a second pole piece outer side, a third pole piece outer side opposite the first pole piece outer side, and a fourth pole piece outer side opposite the second pole piece outer side,
- wherein the coil comprises a cross section that is rectangular in shape, wherein the cross section of the coil is perpendicular to the longitudinal axis of the pole piece,
- wherein the coil comprises a first coil inner side, a second coil inner side, a third coil inner side opposite the first coil inner side, and a fourth coil inner side opposite the second coil inner side,
- wherein the coil is disposed around the pole piece so that a first space exists between the first pole piece outer side and the first coil inner side, a second space exists between the second pole piece outer side and the second coil inner side, a third space exists between the third pole piece outer side and the third coil inner side, and a fourth space exists between the fourth pole piece outer side and the fourth coil inner side;
- and circuitry configured to:
- deliver an electrical signal to the coil in order to maintain the proof mass at a null position;
- determine an electrical current value corresponding to the electrical signal;
- and
- identify, based on the electrical current value, an acceleration of the accelerometer system.
6 more elements
Dependencies are inferred from the claim text.