Gunhard shock isolation system
First Claim
Patent Images
1. An inertial measurement unit (IMU) comprising:
- a container;
a sensor suite having a housing with at least one inertial sensor;
at least one isolator coupled between the container and the sensor suite, wherein the at least one isolator provides sway space between the sensor suite and the container; and
a dampening material applied to at least a portion of the housing.
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Abstract
An inertial measurement unit (IMU) is provided that includes a container that defines a cavity. A sensor suit or ISA having a housing is provided in the container of the IMU. A dampening material is provided between the housing of the ISA and the container of the IMU. The dampening material may be applied by coating, spraying, or dipping, or may be separately molded and then inserted, if desired. A sway space may also be provided between the ISA and the IMU container.
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Citations
23 Claims
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1. An inertial measurement unit (IMU) comprising:
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a container; a sensor suite having a housing with at least one inertial sensor; at least one isolator coupled between the container and the sensor suite, wherein the at least one isolator provides sway space between the sensor suite and the container; and a dampening material applied to at least a portion of the housing. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. An inertial measurement unit (IMU) comprising:
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an IMU container having a cavity with cavity defining walls; a sensor suite having a housing with outer walls, the housing having at least one inertial sensor therein and separated from the IMU container by sway space; and a dampening material provided between the outer walls of the housing and the cavity defining walls of the IMU container, wherein the dampening material attenuates external forces experienced at the sensor suite as the sensor suite reduces the sway space and engages an adjacent portion of the IMU container during a high impact event. - View Dependent Claims (9, 10, 11)
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12. An inertial measurement unit (IMU) comprising:
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a container having a cavity there between; a sensor suite situated inside the cavity of the container; and a sway space situated between at least a portion of the sensor suite and at least a portion of the container. - View Dependent Claims (13, 14, 15, 16, 17)
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18. A method of dampening an inertial measurement unit (IMU) having a container that defines a cavity, the method comprising:
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providing an inertial sensor assembly (ISA) in the cavity, the ISA having a housing with an outer surface; providing a sway space between the outer surface of the housing of the ISA and the container of the IMU to separate the housing of the ISA from the container of the IMU; and providing a dampening material between at least a portion of the outer surface of the housing of the ISA and the container of the IMU, wherein the dampening material attenuates external forces experienced at the sensor suite as the sensor suite substantially eliminates the sway space to engage an adjacent portion of the container of the IMU during a high impact event. - View Dependent Claims (19, 20, 21, 22, 23)
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Specification