Compact vibration isolation system for an inertial sensor assembly
First Claim
1. A vibration isolation system for mounting an inertial sensor assembly to a support that is subject to shock and vibration, comprising:
- an inertial measurement unit housing comprising a plurality of parts which are sealed together, thereby enclosing the inertial sensor assembly, wherein the housing is mounted to the support;
an annular elastomeric member;
an annular outer member encircling the elastomeric member and being fixed thereto, the outer member disposed within the housing and adapted to be secured to the housing; and
an annular inner member encircled by the elastomeric member and being fixed thereto, the inner member adapted to be secured to the inertial sensor assembly.
1 Assignment
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Accused Products
Abstract
Disclosed is a compact vibration isolation system for mounting an inertial sensor assembly (ISA) to an Inertial Measurement Unit (IMU) housing. The housing is mounted to a support that is subjected to shock and vibration. The vibration isolator assembly includes a ring shaped elastomeric member laminated between a ring shaped inner member and a ring shaped outer member. The inner member is securely mounted to the ISA, and the outer member is mounted to a support of the IMU housing. Because of the compact size of this system, the IMU housing contains and protects the elastomeric member from potential contamination and damage, as well as eliminates the need for delicate mechanical and electrical interfaces. The elastomeric member of the system isolates the ISA from shock, vibration, and acoustic energy that may otherwise be transmitted from the support to the ISA.
57 Citations
12 Claims
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1. A vibration isolation system for mounting an inertial sensor assembly to a support that is subject to shock and vibration, comprising:
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an inertial measurement unit housing comprising a plurality of parts which are sealed together, thereby enclosing the inertial sensor assembly, wherein the housing is mounted to the support;
an annular elastomeric member;
an annular outer member encircling the elastomeric member and being fixed thereto, the outer member disposed within the housing and adapted to be secured to the housing; and
an annular inner member encircled by the elastomeric member and being fixed thereto, the inner member adapted to be secured to the inertial sensor assembly. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 10, 12)
a cover member;
a base member; and
an interface ring which seals the cover member and base member together.
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10. The vibration isolation system of claim 1 in which the annular elastomeric member comprises a concentric cutout region along an external surface of the member.
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12. The vibration isolation system of claim 1 in which the annular outer member and annular inner member are manufactured of an aluminum alloy material.
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9. A vibration isolation system for mounting an inertial sensor assembly to a support that is subject to shock and vibration, comprising;
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a housing that contains the inertial sensor assembly and is mounted to the support;
an annular elastomeric member comprising a concentric, internal pocket;
an annular outer member encircling the elastomeric member and being fixed thereto, the outer member adapted to be secured to and within the housing; and
an annular inner member encircled by the elastomeric member and being fixed thereto, the inner member adapted to he secured to the inertial sensor assembly.
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11. A vibration isolation system for mounting an inertial sensor assembly to a support that is subject to shock and vibration, comprising:
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a housing that contains the inertial sensor assembly and is mounted to the support;
an annular elastomeric member comprising;
a concentric, internal pocket; and
a concentric, cutout region along an external surface of the member;
an annular outer member encircling the elastomeric member and being fixed thereto, the outer member adapted to be secured to and within the housing; and
an annular inner member encircled by the elastomeric member and being fixed thereto, the inner member adapted to be secured to the inertial sensor assembly.
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Specification