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Flight Management Unit sensors Part 2
The Agilent ADNS-2610 optical mouse sensor IC
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Agilent ADNS-2610 optical mouse sensor |
Although the 18 x 18 element CMOS photosensor was developed for use in motion sensing for mice, this same IC can be used with a lens to monitor the motion of the UAV over terrain in both X and Y direction. The movement of the underlying image across the CMOS sensor array is referred to as the " optic flow" .
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Applications |
- ground speed detector (height needs to be known from an altimeter)
- an indication of the tilt of the UAV
- an indication of the height above ground (if the ground speed is known from GPS)
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Centronic Q47-5T |
from http://www.centronic.co.uk/products_electro_products_silicon.asp
The four quadrant pointing angle detector is used with a lens to detect when the leans plus four quadrant detector is pointing at a light source, such as the sun, or a laser spot. When the detector plus lens assembly is pointing directly at the light souce, the photocurrent outputs from each of the four detectors is equal. In a Flight Management Unit, the four quadrant detector could point at the sun or moon, and the changes in the pointing angle would be indicative of a change in attitude of the UAV.
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Applications |
Use a four quadrant detector pointing at the sun or moon to detect:
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locate the sun or moon to determine:
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yaw, pitch and roll
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aircraft attitude
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locate a laser spot
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Melexis MLX90247 thermopile detector |
from http://www.melexis-rf-ics.com/prodfiles2/0002500_90247_1.pdf
Thanks to Josh Levine for bringing this thermopile sensor to our attention.
- from 1033_paparazzi.pdf on "Build you own UAV"
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Applications: |
- horizon sensing
- engine temperature sensing
© Barnard Microsystems Limited 2006 - 2008