Broadband waveguide
First Claim
1. A broadband waveguide configured to communicate a signal, comprising:
- a plurality of filaments each including a first end, a second end, and a length between the first and second ends, at least two filaments of the plurality of filaments having differing lengths;
a first matrix coupling the plurality of filaments to one another proximate the respective first ends thereof; and
a second matrix coupling the plurality of filaments to one another proximate an intermediate location between the first and second ends thereof, the first and second matrices configured to secure the filaments in a bundle, wherein the at least two filaments having differing lengths operate to suppress reflections of a signal introduced proximate the first matrix caused by the respective second ends.
2 Assignments
0 Petitions
Accused Products
Abstract
A broadband waveguide incorporates various reflection suppression techniques to reduce reflections in signals communicated thereby. The waveguide includes one or more filaments that each include a first and second end. A first matrix may be configured proximate the first end(s) while a second matrix may be configured proximate an intermediate location between the first and second ends. A damping material may cover a portion of the filament(s) that extends from the second matrix to the second end(s) (including the second end(s) themselves) and/or the second end(s) of the filament(s) is/are shaped to at least partially suppress reflections of the signal therefrom. When configured with multiple filaments, at least two of the filaments may have differing lengths that extend from the second matrix and also operate to at least partially suppress reflections of a signal.
49 Citations
77 Claims
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1. A broadband waveguide configured to communicate a signal, comprising:
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a plurality of filaments each including a first end, a second end, and a length between the first and second ends, at least two filaments of the plurality of filaments having differing lengths; a first matrix coupling the plurality of filaments to one another proximate the respective first ends thereof; and a second matrix coupling the plurality of filaments to one another proximate an intermediate location between the first and second ends thereof, the first and second matrices configured to secure the filaments in a bundle, wherein the at least two filaments having differing lengths operate to suppress reflections of a signal introduced proximate the first matrix caused by the respective second ends. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27)
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28. A broadband mechanical waveguide configured to communicate a stress wave, comprising:
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a filament including a first end, a second end, and a length between the first and second ends, the filament formed of a material that is transmissive of stress waves, the first end of the filament configured to be coupled to a structure that generates a stress wave indicative of vibration or pressure at the structure such that the stress wave is introduced proximate the first end of the filament for passive broadband measurement of the vibration or pressure proximate an intermediate location of the filament between the first and second ends; a matrix coupled to the intermediate location of the filament between the first and second ends thereof; and a damping material coupled between the intermediate location and the second end, the damping material configured to at least partially suppress reflections of the stress wave introduced proximate the first end caused by the second end. - View Dependent Claims (29, 30)
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31. A broadband mechanical waveguide configured to communicate a stress wave, comprising:
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a filament including a first end, a second end, and a length between the first and second ends, the filament formed of a material that is transmissive of stress waves, the first end of the filament configured to be coupled to a structure that generates a stress wave indicative of vibration or pressure at the structure such that the stress wave is introduced proximate the first end of the filament for passive broadband measurement of the vibration or pressure proximate an intermediate location of the filament between the first and second ends; a matrix coupled to the intermediate location of the filament between the first and second ends thereof, the second end shaped to at least partially suppress reflections of the stress wave introduced proximate the first end caused by the second end. - View Dependent Claims (32, 33, 34)
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35. A broadband mechanical waveguide configured to communicate a stress wave, comprising:
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a filament including a first end, a second end, and a length between the first and second ends, the filament formed of a material that is transmissive of stress waves, the first end of the filament configured to be coupled to a structure that generates a stress wave indicative of vibration or pressure at the structure such that the stress wave is introduced proximate the first end of the filament for passive broadband measurement of the vibration or pressure proximate an intermediate location of the filament between the first and second ends; a sensor coupled proximate the intermediate location of the filament between the first and second ends thereof to passively sense axial strain, radial strain or surface motion of the filament caused by the stress wave introduced proximate the first end and transmitted along the filament; and a damping material coupled between the intermediate location and the second end, the damping material configured to at least partially suppress reflections of the stress wave caused by the second end.
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36. A broadband mechanical waveguide configured to communicate a stress wave, comprising:
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a filament including a first end, a second end, and a length between the first and second ends, the filament formed of a material that is transmissive of stress waves, the first end of the filament configured to be coupled to a structure that generates a stress wave indicative of vibration or pressure at the structure such that the stress wave is introduced proximate the first end of the filament for passive broadband measurement of the vibration or pressure proximate an intermediate location of the filament between the first and second ends; a sensor coupled proximate the intermediate location of the filament between the first and second ends thereof to passively sense axial strain, radial strain or surface motion of the filament caused by the stress wave introduced proximate the first end and transmitted along the filament, the second end shaped to at least partially suppress reflections of the stress wave caused by the second end. - View Dependent Claims (37)
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38. A broadband mechanical waveguide configured to communicate a stress wave, comprising:
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a plurality of filaments each including a first end, a second end, and a length between the first and second ends; a first matrix coupling the plurality of filaments to one another proximate the respective first ends thereof; and a second matrix coupling the plurality of filaments to one another proximate an intermediate location between the first and second ends thereof, the first and second matrices configured to secure the filaments in a bundle, wherein the second end of at least one of the plurality of filaments is shaped to at least partially suppress reflections of the stress wave therefrom.
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39. A broadband mechanical waveguide configured to communicate a stress wave, comprising:
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a plurality of filaments each including a first end, a second end, and a length between the first and second ends, each filament formed of a material that is transmissive of stress waves; a first matrix coupling the plurality of filaments to one another proximate the respective first ends thereof; a second matrix coupling the plurality of filaments to one another proximate an intermediate location between the first and second ends thereof, the first and second matrices configured to secure the filaments in a bundle; and a damping material engaging at least a portion of the plurality of filaments between the intermediate location and the respective second ends thereof to at least partially suppress reflections of a stress wave introduced proximate the first matrix caused by the respective second ends. - View Dependent Claims (40)
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41. A method of assembling a broadband mechanical waveguide of the type that includes a plurality of filaments each including a first end, a second end, and a length between the first and second ends, at least two filaments of the plurality of filaments having differing lengths, and the plurality of filaments formed of a material that is transmissive of stress waves, the method comprising:
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coupling the plurality of filaments to one another proximate the respective first ends; and coupling the plurality of filaments to one another proximate an intermediate location between the first and second ends thereof such that the at least two filaments having differing lengths have respective second ends that extend differing distances from the intermediate location along a longitudinal direction of the at least two filaments to suppress reflections of a stress wave introduced proximate the first matrix caused by the respective second ends. - View Dependent Claims (42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62)
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63. A method of assembling a broadband mechanical waveguide of the type that includes a filament that in turn includes a first end, a second end, and a length between the first and second ends, the filament formed of a material that is transmissive of stress waves, the method comprising:
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coupling a matrix proximate an intermediate location between the first and second ends; coupling the first end of the filament to a structure that generates a stress wave indicative of vibration or pressure at the structure such that the stress wave is introduced proximate the first end of the filament for passive broadband measurement of the vibration or pressure proximate the intermediate location between the first and second ends; and coupling a damping material proximate the second end to at least partially suppress reflections of the stress wave introduced proximate the first end caused by the second end. - View Dependent Claims (64, 77)
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65. A method of assembling a broadband mechanical waveguide of the type that includes a filament that in turn includes a first end, a second end, and a length between the first and second ends, the filament formed of a material that is transmissive of stress waves, the method comprising:
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coupling a matrix proximate an intermediate location between the first and second ends; coupling the first end of the filament to a structure that generates a stress wave indicative of vibration or pressure at the structure such that the stress wave is introduced proximate the first end of the filament for passive broadband measurement of the vibration or pressure proximate the intermediate location between the first and second ends; and configuring the second end to at least partially repress reflections of the stress wave introduced proximate the first end caused by the second end. - View Dependent Claims (66, 67, 68)
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69. A method of assembling a broadband mechanical waveguide of the type that includes a filament that in turn includes a first end, a second end, and a length between the first and second ends, the filament formed of a material that is transmissive of stress waves, the method comprising:
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coupling the first end of the filament to a structure that generates a stress wave indicative of vibration or pressure at the structure such that the stress wave is introduced proximate the first end of the filament for passive broadband measurement of the vibration or pressure proximate an intermediate location between the first and second ends; coupling a sensor proximate the intermediate location of the filament between the first and second ends thereof to passively sense axial strain, radial strain or surface motion of the filament caused by the stress wave introduced proximate the first end and transmitted along the filament; and coupling a damping material between the intermediate location and the second end to at least partially suppress reflections of the stress wave caused by the second end.
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70. A method of assembling a broadband mechanical waveguide of the type that includes a filament that in turn includes a first end, a second end, and a length between the first and second ends, the filament formed of a material that is transmissive of stress waves, the method comprising:
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coupling the first end of the filament to a structure that generates a stress wave indicative of vibration or pressure at the structure such that the stress wave is introduced proximate the first end of the filament for passive broadband measurement of the vibration or pressure proximate an intermediate location between the first and second ends; shaping the second end to at least partially suppress reflections of the stress wave; and coupling a sensor proximate the intermediate location of the filament between the first and second ends thereof to passively sense axial strain, radial strain or surface motion of the filament caused by the stress wave introduced proximate the first end and transmitted along the filament. - View Dependent Claims (71)
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72. A method of assembling a broadband mechanical waveguide of the type that includes a plurality of filaments each including a first end, a second end, and a length between the first and second ends, each of the plurality of filaments formed of a material that is transmissive of stress waves, the method comprising:
coupling the plurality of filaments to one another proximate an intermediate location between the first and second ends thereof, wherein a second end of at least one of the plurality of filaments is shaped to at least partially suppress reflections of a stress wave introduced proximate the first end caused by the second end.
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73. A method of assembling a broadband mechanical waveguide of the type that includes a plurality of filaments each including a first end, a second end, and a length between the first and second ends, each of the plurality of filaments formed of a material that is transmissive of stress waves, the method comprising:
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coupling the plurality of filaments to one another proximate the respective first ends; coupling the plurality of filaments to one another proximate an intermediate location between the first and second ends thereof; and applying a damping material to engage at least a portion of the plurality of filaments between the respective second ends and the intermediate location, wherein the damping material is configured to at least partially suppress reflections of a stress wave introduced proximate the first end caused by the second end. - View Dependent Claims (74)
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75. A broadband mechanical waveguide, comprising:
a plurality of filaments each including a first end, a second end, and having differing lengths, and each formed of a material that is transmissive of stress waves, the plurality of filaments coupled to one another at the respective first ends thereof, the plurality of filaments further coupled to one another at an intermediate location between the first and second ends thereof such that respective second ends of the plurality of filaments extend differing distances from the intermediate location to suppress reflections of a stress wave introduced proximate the first matrix caused by the respective second ends.
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76. A method of using a waveguide of the type that includes a plurality of filaments each including a first end, a second end, and a length between the first and second ends, at least two filaments of the plurality of filaments having differing lengths, the broadband waveguide of the type that further includes a first matrix coupling the plurality of filaments to one another proximate the respective first ends thereof and a second matrix coupling the plurality of filaments to one another proximate an intermediate location between the first and second ends thereof, the method comprising:
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receiving a signal proximate the respective first ends of the plurality of filaments such that the signal is communicated along the plurality of filaments to the intermediate location; and measuring the communicated signal proximate the intermediate location.
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Specification