Patents by Inventor Rand H. Hulsing, II
Rand H. Hulsing, II has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 7243542Abstract: The present invention provides an apparatus and method for measuring the angular rotation of a moving body. The apparatus comprises an upper sensor layer, a lower handle layer substantially parallel to the sensor layer, at least one dither frame formed of the upper sensor layer, the frame having a dither axis disposed substantially parallel to the upper sensor layer and the lower handle layer. The apparatus further comprises a first accelerometer formed of the upper sensor layer and having a first force sensing axis perpendicular to the dither axis for producing a first output signal indicative of the acceleration of the moving body along the first force sensing axis, the first accelerometer having a proof mass and at least one flexure connecting the proof mass to the dither frame such that the proof mass can be electrically rotated perpendicular to the dither axis.Type: GrantFiled: November 3, 2003Date of Patent: July 17, 2007Assignee: L-3 Communications CorporationInventor: Rand H. Hulsing, II
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Patent number: 6843126Abstract: A triaxial sensor substrate is adapted for use in measuring the acceleration and angular rate of a moving body along three orthogonal axes. The triaxial sensor substrate includes three individual sensors that are arranged in the plane of the substrate at an angle of 120 degrees with respect to one another. Each sensor is formed from two accelerometers having their sensing axes canted at an angle with respect to the plane of the substrate and further being directed in opposite directions. The rate sensing axes thus lie along three orthogonal axes. In order to reduce or eliminate angular acceleration sensitivity, a two substrate configuration may be used. Each substrate includes three accelerometers that are arranged in the plane of the substrate at an angle of 120 degrees with respect to one another. The sensing axes of the accelerometers of the first substrate are canted at an angle with respect to the plane of the first substrate toward the central portion thereof so that they lie along three skewed axes.Type: GrantFiled: August 29, 2002Date of Patent: January 18, 2005Assignee: Honeywell International Inc.Inventor: Rand H. Hulsing, II
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Patent number: 6701786Abstract: The present invention provides an apparatus and method for measuring the angular rotation of a moving body. The apparatus comprises an upper sensor layer, a lower handle layer substantially parallel to the sensor layer, at least one dither frame formed of the upper sensor layer, the frame having a dither axis disposed substantially parallel to the upper sensor layer and the lower handle layer. The apparatus further comprises a first accelerometer formed of the upper sensor layer and having a first force sensing axis perpendicular to the dither axis for producing a first output signal indicative of the acceleration of the moving body along the first force sensing axis, the first accelerometer having a proof mass and at least one flexure connecting the proof mass to the dither frame such that the proof mass can be electrically rotated perpendicular to the dither axis.Type: GrantFiled: April 29, 2002Date of Patent: March 9, 2004Assignee: L-3 Communications CorporationInventor: Rand H. Hulsing, II
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Patent number: 6662657Abstract: Performance-enhancing, reduced-area metalization adhesion areas in force-sensing transducers are described.Type: GrantFiled: June 25, 2002Date of Patent: December 16, 2003Assignee: Honeywell International, Inc.Inventors: Rand H. Hulsing, II, Randy Sprague
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Patent number: 6463802Abstract: A triaxial sensor substrate is adapted for use in measuring the acceleration and angular rate of a moving body along three orthogonal axes. The triaxial sensor substrate includes three individual sensors that are arranged in the plane of the substrate at an angle of 120 degrees with respect to one another. Each sensor is formed from two accelerometers having their sensing axes canted at an angle with respect to the plane of the substrate and further being directed in opposite directions. The rate sensing axes thus lie along three orthogonal axes. In order to reduce or eliminate angular acceleration sensitivity, a two substrate configuration may be used. Each substrate includes three accelerometers that are arranged in the plane of the substrate at an angle of 120 degrees with respect to one another. The sensing axes of the accelerometers of the first substrate are canted at an angle with respect to the plane of the first substrate toward the central portion thereof so that they lie along three skewed axes.Type: GrantFiled: February 15, 2001Date of Patent: October 15, 2002Inventor: Rand H. Hulsing, II
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Patent number: 6435029Abstract: Performance-enhancing, reduced-area metalization adhesion areas in force-sensing transducers are described.Type: GrantFiled: October 30, 2000Date of Patent: August 20, 2002Assignee: Honeywell International, Inc.Inventors: Rand H. Hulsing, II, Randy Sprague
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Patent number: 6423564Abstract: Performance-enhancing, reduced-area metalization adhesion areas in force-sensing transducers are described.Type: GrantFiled: October 30, 2000Date of Patent: July 23, 2002Assignee: Honeywell International, Inc.Inventors: Rand H. Hulsing, II, Randy Sprague
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Patent number: 6295870Abstract: A triaxial sensor substrate is adapted for use in measuring the acceleration and angular rate of a moving body along three orthogonal axes. The triaxial sensor substrate includes three individual sensors that are arranged in the plane of the substrate at an angle of 120 degrees with respect to one another. Each sensor is formed from two accelerometers having their sensing axes canted at an angle with respect to the plane of the substrate and further being directed in opposite directions. The rate sensing axes thus lie along three orthogonal axes. In order to reduce or eliminate angular acceleration sensitivity, a two substrate configuration may be used. Each substrate includes three accelerometers that are arranged in the plane of the substrate at an angle of 120 degrees with respect to one another. The sensing axes of the accelerometers of the first substrate are canted at an angle with respect to the plane of the first substrate toward the central portion thereof so that they lie along three skewed axes.Type: GrantFiled: March 18, 1997Date of Patent: October 2, 2001Assignee: AlliedSignal Inc.Inventor: Rand H. Hulsing, II
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Patent number: 6285111Abstract: An apparatus and method for determining the rate of angular rotation of a moving body and, in particular, for alignment of the dither motion and the Coriolis acceleration sensing direction in a sensor adapted to be formed, i.e. micromachined, from a silicon substrate.Type: GrantFiled: October 15, 1999Date of Patent: September 4, 2001Assignee: AlliedSignalInventor: Rand H. Hulsing, II
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Patent number: 6282955Abstract: A symmetrical link device for linking first and second coplanar devices each movably mounted in a frame such that when one of the first and second coplanar devices is moved, a substantially equal and opposite motion is imparted to the other of the first and second coplanar devices.Type: GrantFiled: April 29, 2000Date of Patent: September 4, 2001Assignee: L-3 Communications CorporationInventor: Rand H. Hulsing, II
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Patent number: 6276203Abstract: An apparatus and method for determining the rate of angular rotation of a moving body and, in particular, for alignment of the dither motion and the Coriolis acceleration sensing direction in a sensor adapted to be formed, i.e. micromachined, from a silicon substrate.Type: GrantFiled: June 2, 1999Date of Patent: August 21, 2001Assignee: L-3 Communications CorporationInventor: Rand H. Hulsing, II
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Patent number: 6273514Abstract: An apparatus and method for determining the rate of angular rotation of a moving body and, in particular, for alignment of the dither motion and the Coriolis acceleration sensing direction in a sensor adapted to be formed, i.e. micromachined, from a silicon substrate.Type: GrantFiled: October 15, 1999Date of Patent: August 14, 2001Assignee: AlliedSignalInventor: Rand H. Hulsing, II
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Patent number: 6257057Abstract: An apparatus for measuring the specific force and angular rotation rate of a moving body having multiple micromachined force-rebalance accelerometers formed in a layer of epitaxial material. The apparatus further includes a frame formed of the epitaxial material; two accelerometers, flexibly connected to the frame, which are also formed of the epitaxial material and each having a force sensing axis perpendicular to the vibration axis for producing an output signal indicative of the acceleration of the moving body along the force sensing axis; an electrical circuit imparting a dithering motion to the two accelerometers along the vibration axis; and a rate axis perpendicular to the force sensing axes and the vibration axis, whereby the output signals have a Coriolis component indicative of the angular rotation of the moving body about the rate axis.Type: GrantFiled: June 2, 1999Date of Patent: July 10, 2001Assignee: L-3 Communications CorporationInventor: Rand H. Hulsing, II
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Patent number: 6161440Abstract: Performance-enhancing, reduced-area metalization adhesion areas in force-sensing transducers are described.Type: GrantFiled: June 25, 1998Date of Patent: December 19, 2000Assignee: AlliedSignal Inc.Inventors: Rand H. Hulsing, II, Randy Sprague
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Patent number: 6098462Abstract: A symmetrical link device for linking first and second coplanar devices each movably mounted in a frame such that when one of the first and second coplanar devices is moved, a substantially equal and opposite motion is imparted to the other of the first and second coplanar devices.Type: GrantFiled: January 30, 1998Date of Patent: August 8, 2000Assignee: L-3 Communications Corp.Inventor: Rand H. Hulsing, II
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Patent number: 6079271Abstract: A symmetrical link device for linking first and second coplanar devices each movably mounted in a frame such that when one of the first and second coplanar devices is moved, a substantially equal and opposite motion is imparted to the other of the first and second coplanar devices.Type: GrantFiled: August 14, 1998Date of Patent: June 27, 2000Assignee: L-3 Communications CorporationInventor: Rand H. Hulsing, II
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Patent number: 6023972Abstract: A sensor (10) is disclosed for measuring the specific force and angular rotation rate of a moving body and is micromachined from a silicon substrate (16). First and second accelerometers (32a and b) are micromachined from the silicon substrate (16), each having a force sensing axis (38) and producing an output signal of the acceleration of the moving body along its force sensing axis (38). The first and second accelerometers (32a and b) are mounted within the substrate (16) to be moved along a vibration axis (41). The first and second accelerometers (32a and b) are vibrated or dithered to increase the Coriolis component of the output signals from the first and second accelerometers (32a and b). A sinusoidal drive signal of a predetermined frequency is applied to a conductive path (92) disposed an each of the accelerometers.Type: GrantFiled: July 11, 1997Date of Patent: February 15, 2000Assignee: AlliedSignal Inc.Inventor: Rand H. Hulsing, II
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Patent number: 5974879Abstract: A monolithic substrate for acceleration and angular rate sensing. The substrate comprises a support frame, and a first accelerometer formed in the substrate. The first accelerometer has a proof mass including first and second opposite edges. A flexure connects the first edge of the proof mass to the support frame. The flexure defines a hinge axis for the proof mass. The first accelerometer further includes a torsion stabilizing strut coupling a portion of the proof mass to the frame.Type: GrantFiled: August 14, 1998Date of Patent: November 2, 1999Assignee: AlliedSignal Inc.Inventor: Rand H. Hulsing, II
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Patent number: 5962784Abstract: A monolithic substrate for acceleration and angular rate sensing. The substrate comprises a support frame, and a first accelerometer formed in the substrate. The first accelerometer has a proof mass including first and second opposite edges. A flexure connects the first edge of the proof mass to the support frame. The flexure defines a hinge axis for the proof mass. The first accelerometer further includes a torsion stabilizing strut coupling a portion of the proof mass to the frame.Type: GrantFiled: October 14, 1997Date of Patent: October 5, 1999Assignee: AlliedSignal Inc.Inventor: Rand H. Hulsing, II
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Patent number: 5920011Abstract: A sensor (10) is disclosed for measuring the specific force and angular rotation rate of a moving body and is micromachined from a silicon substrate (16). First and second accelerometers (32a and b) are micromachined from the silicon substrate (16), each having a force sensing axis (38) and producing an output signal of the acceleration of the moving body along its force sensing axis (38). The first and second accelerometers (32a and b) are mounted within the substrate (16) to be moved along a vibration axis (41). The first and second accelerometers (32a and b) are vibrated or dithered to increase the Coriolis component of the output signals from the first and second accelerometers (32a and b). A sinusoidal drive signal of a predetermined frequency is applied to a conductive path (92) disposed on each of the accelerometers.Type: GrantFiled: January 20, 1997Date of Patent: July 6, 1999Assignee: AlliedSignal Inc.Inventor: Rand H. Hulsing, II