Angular sensor
This discovery presents methods for angle measurement using CNT forests as a reflector which is first of its kind. The sensor comprised of partially polarized laser source, polarizer, patterned CNT forests and a photo detector to measure the transmitted polarized power coming through a polarizer....
| Main Authors: | , , , |
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| Format: | Patent |
| Language: | English |
| Published: |
2016
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| Subjects: | |
| Online Access: | http://irep.iium.edu.my/76678/ http://irep.iium.edu.my/76678/ http://irep.iium.edu.my/76678/ http://irep.iium.edu.my/76678/1/76678_Angular%20Sensor_complete.pdf |
| Summary: | This discovery presents methods for angle measurement using CNT forests as a reflector which
is first of its kind. The sensor comprised of partially polarized laser source, polarizer, patterned
CNT forests and a photo detector to measure the transmitted polarized power coming through a
polarizer. CNTs forest was patterned in two different ways, using bottom of the rotating tool and
side of the rotating tool. It will generate two different types of surface, trochoidal motion type
and anisotropic alignment in the direction of the tool motion. On the first sample, two
measurement methods are described here, first by varying the polarization angle, Ɵ1 of the
incident laser and second by varying the incident angle itself, Ɵ2. For the second sample, sample
is rotated at its axis, Ɵ3 to see the difference in reflectance value. |
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