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Method of angular measurement by means of a vibrating sensor to which modulated controls are applied
US8997567B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8997567-B2 |
| Application number | US-201113581787-A |
| Country | US |
| Kind code | B2 |
| Filing date | Mar 23, 2011 |
| Priority date | Mar 23, 2010 |
| Publication date | Apr 7, 2015 |
| Grant date | Apr 7, 2015 |
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Abstract
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Method of angular measurement by means of a sensor comprising an axisymmetric resonator associated with means for setting the resonator into vibration and with means for detecting an orientation of the vibration with respect to a reference frame of the sensor, comprising the steps of applying a precession control so as to slave an orientation of the vibration to an angular setpoint value and of determining an angular measurement on the basis of the precession control. The method comprises a phase of modulating the angular setpoint value in such a way that the said setpoint value uniformly sweeps an angular span of π radians and that a temporal derivative of the setpoint is deducted from the precession control prior to the determination of the angular measurement.
First claim
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The invention claimed is: 1. A method of angular measurement by a sensor comprising an axisymmetric resonator associated with means for setting the resonator into vibration and with means for detecting an orientation of the vibration with respect to a reference frame tied to a casing of the sensor and/or to the resonator, the method comprising: the steps of applying a precession control so as to slave the orientation of the vibration to an angular setpoint value; determining an…
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- G01C19/567Primary
Physics · mapped topic
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- What does patent US8997567B2 cover?
- Method of angular measurement by means of a sensor comprising an axisymmetric resonator associated with means for setting the resonator into vibration and with means for detecting an orientation of the vibration with respect to a reference frame of the sensor, comprising the steps of applying a precession control so as to slave an orientation of the vibration to an angular setpoint value and of…
- Who is the assignee on this patent?
- Ragot Vincent, Sagem Defense Securite
- What technology area does this patent fall under?
- Primary CPC classification G01C19/567. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Apr 07 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).