Patent · US Active

Angular velocity sensor

US8991248B2 · kind B2 · utility

2Cited by

5References

7Claims

0Family size

Assignee

PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD. · JP

Inventors

Takashi Imanaka · Kadoma, JP
Hiroyuki Aizawa · Yokohama, JP

Key dates

Filing date	Jan 27, 2011
Grant date	Mar 31, 2015
Priority date	—
Expiry date	Feb 18, 2032

Classification

Technology area (CPC G)Physics
CPC primaryG01C19/574
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

An angular velocity sensor includes a support body, a retaining portion connected to the support body, first to fourth weights, first to fourth arms, a drive unit for driving the first to fourth arms, and a monitor unit for detecting displacements of the first to fourth arms. An X-axis, a Y-axis, and a Z-axis that are perpendicular to each other are defined. The detector unit is symmetrical with respect to both an axis parallel to the X-axis and an axis parallel to the Y-axis. This angular velocity sensor can cancel an undesired signal caused by external disturbances, such as acceleration or impact, thus detecting an angular velocity accurately.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.