Method and system for sensor configuration
AssigneeInvenSense, Inc.
InventorsKarthik Katingari, Jongwoo Shin, Joe Seeger, Vamshi Gangumalla, Ardalan Heshmati, Sheena Shi
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Abstract
Described herein are methods and systems for configuring a motion sensor assembly to compensate for a temperature gradient. First and second sensors of the same type are arranged as opposing pairs with respect to a first axis that may be defined by a temperature gradient caused by at least one thermal element. Combining the output measurements of the first sensor and the second sensor allows effects of the temperature gradient on sensor measurements of the first sensor and the second sensor to be compensated.
Claims24
A method for configuring a sensor assembly to compensate for a temperature gradient, comprising:
- providing a first sensor having an orientation with respect to a first axis, wherein the first axis is defined in relation to a temperature gradient caused by at least one thermal element;
- providing a second sensor having an opposing orientation with respect to the first axis, wherein the first sensor and the second sensor are of a same type;
- and
- outputting a combined measurement of the first sensor and the second sensor, wherein the combined measurement is compensated for an effect of the temperature gradient on sensor measurements of the first sensor and the second sensor.
A sensor system comprising:
- a first sensor having an orientation with respect to a first axis;
- a second sensor having an opposing orientation with respect to the first axis wherein the first sensor and the second sensor are of a same type;
- and
- an output comprising a combined measurement of the first sensor and the second sensor, wherein the combined measurement is compensated for an effect of a temperature gradient on sensor measurements of the first sensor and the second sensor.
An integrated sensor assembly comprising:
- a first sensor having an orientation with respect to a first axis;
- a second sensor having an opposing orientation with respect to the first axis wherein the first sensor and the second sensor are of a same type;
- a first thermal element dedicated to the first sensor and a second thermal element dedicated to the second sensor, wherein the thermal elements are positioned to impart opposing thermal gradients in the respective sensors;
- and
- a processor configured to combine measurements of the first sensor and the second sensor to compensate for an effect of the temperature gradient on sensor measurements of the first sensor and the second sensor.
Dependencies are inferred from the claim text.