Title :
A CMOS optical-comparator-based velocity and direction motion sensor
Author :
Cheng-Ta Chiang ; Ching-Tai Tseng
Author_Institution :
Dept. of Electr. Eng., Nat. Chia Yi Univ., Chiayi, Taiwan
Abstract :
In this paper, a CMOS optical-comparator-based velocity and direction motion sensor is newly proposed. Without using complicated calculation as performed by DSP, the proposed chip is attractive due to the fact that the proposed method is low-cost, and easier to be implemented. The chip area is 1.47 × 1.49 mm2. The simulated lightness range is from 100 pA to 3 nA. All the functions and performance of the proposed CMOS optical-comparator-based velocity and direction motion sensor are successfully tested and proven through SPICE simulations. The proposed chip is suitable for devices of detecting the speed and direction of objects.
Keywords :
CMOS image sensors; SPICE; comparators (circuits); motion measurement; velocity measurement; CMOS optical-comparator-based velocity sensor; SPICE simulations; current 100 pA to 3 nA; direction motion sensor; simulated lightness range; CMOS integrated circuits; Optical fiber sensors; Optical fibers; Optical reflection; Simulation; chip; motion sensor; optical-comparator-based;
Conference_Titel :
Mechatronics and Automation (ICMA), 2013 IEEE International Conference on
Conference_Location :
Takamatsu
Print_ISBN :
978-1-4673-5557-5
DOI :
10.1109/ICMA.2013.6617916
