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Three-Dimensional, Non-Contacting, Angular Motion Sensor

Technology Benefits

Non-contactingMagnetic sensingReal-time3-D

Technology Application

Ball wheel mechanism which serves as the drive train in a robust omnidirectional mobile platform Measure the absolute orientation, axis of rotation and angular speed of any body rotating about a fixed point such as: robotic manipulators, telescope positioning systems, head orientation measurement for virtual reality and game applications, and other systems with spherical joints Biomedical applications including measuring limb motion Devices that require velocity feedback

Detailed Technology Description

Researchers at the University of California, Davis have developed a real-time, three-dimensional angular motion tracking scheme that determines the absolute orientation, axis of rotation and angular speed of a body rotating about a point, which is fixed relative to the sensor. The scheme is based on a single tri-axial fluxgate magnetometer. The algorithm takes the three-dimensional flux density measurements from the magnetometer and calculates the angular motion information at each sampling. UC Davis researchers have developed an apparatus and tested the feasibilty of this scheme, and have demonstrated the scheme's capability of non-contact angular rate sensing.

Supplementary Information

Patent Number: US7868610B2
Application Number: US2007761112A
Inventor: Velinsky, Steven A. | Lee, Danny
Priority Date: 9 Jun 2006
Priority Number: US7868610B2
Application Date: 11 Jun 2007
Publication Date: 11 Jan 2011
IPC Current: G01B000730
US Class: 32420725 | 324244 | 324260
Assignee Applicant: The Regents of the University of California
Title: Angular motion tracking sensor
Usefulness: Angular motion tracking sensor
Summary: Used for real-time, three-dimensional angular motion tracking of an object e.g. sphere rotating in a cradle, spherical motor, spherical continuously variable transmission, and unidirectional vehicle. Can also be used in biomedical applications, virtual reality and game applications, military aircraft applications, and robotic applications.
Novelty: Motion tracking apparatus for e.g. sphere rotating in cradle, has sensor, and tracking unit tracking three-dimensional angular motion of object, and object engaging in spherical motion

Industry

Automotive

Sub Category

Engine/Motor

Application No.

7868610

Others

Additional Technologies by these Inventors

• Apparatus for Retrieving Conical Highway Warning Markers

Tech ID/UC Case

11271/2006-677-0

Related Cases

2006-677-0

*Abstract

Three-dimensional non-contacting sensor for tracking the spherical motion of a body.

*IP Issue Date

Jan 11, 2011

*Principal Investigator

Name: Danny Lee

Department:

Name: Steven Velinsky

Department:

Country/Region

USA