Resonant opto-mechanical accelerometer for use in navigation grade environments
First Claim
Patent Images
1. An accelerometer comprising:
- a controller;
a light source operatively coupled to said controller;
a bifurcated waveguide coupled to said light source and configured to receive light output by said light source, said bifurcated waveguide comprising;
a first waveguide portion; and
a second waveguide portion;
a first resonator operatively coupled to said controller, said first resonator out of plane with said first waveguide portion and configured to receive light from said first waveguide portion, said first resonator comprising a first proof mass; and
a second resonator operatively coupled to said controller, said second resonator out of plane with said second waveguide portion and configured to receive light from said second waveguide portion, said second resonator comprising a second proof mass, said second proof mass different from said first proof mass.
1 Assignment
0 Petitions
Accused Products
Abstract
An accelerometer includes a controller, a light source operatively coupled to the controller, and a bifurcated waveguide coupled to the light source and configured to receive light output by the light source. The bifurcated waveguide includes a first waveguide portion and a second waveguide portion. The accelerometer also includes a first resonator operatively coupled to the controller and configured to receive light from the first waveguide portion, and a second resonator operatively coupled to the controller and configured to receive light from the second waveguide portion. The first resonator includes a first proof mass, and the second resonator includes a second proof mass.
19 Citations
22 Claims
-
1. An accelerometer comprising:
-
a controller; a light source operatively coupled to said controller; a bifurcated waveguide coupled to said light source and configured to receive light output by said light source, said bifurcated waveguide comprising; a first waveguide portion; and a second waveguide portion; a first resonator operatively coupled to said controller, said first resonator out of plane with said first waveguide portion and configured to receive light from said first waveguide portion, said first resonator comprising a first proof mass; and a second resonator operatively coupled to said controller, said second resonator out of plane with said second waveguide portion and configured to receive light from said second waveguide portion, said second resonator comprising a second proof mass, said second proof mass different from said first proof mass. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
-
-
12. A resonator for use in an accelerometer, said resonator comprising:
-
a substrate; a transparent cover; and a proof mass mounted between said substrate and said transparent cover, said proof mass comprising; a central portion that includes a reflective region, said reflective region of said central portion configured to reflect light received from an out of plane waveguide portion back towards the out of plane waveguide portion; a first spring; a first portion coupled to said central portion by said first spring; a second spring; and a second portion coupled to said central portion by said second spring. - View Dependent Claims (13, 14, 15, 16, 17, 18)
-
-
19. An accelerometer comprising:
-
a light source; a waveguide coupled to said light source and configured to receive light output by said light source; and a resonator out of plane with said waveguide and configured to receive light from said waveguide, said resonator comprising a proof mass, said proof mass configured to reflect at least a portion of the light received from said waveguide back towards said waveguide. - View Dependent Claims (20, 21, 22)
-
Specification