Title :
Transforming a CD/DVD pick-up-head into an accelerometer
Author :
Chieh, Jih-Wei ; Hung, Shao-Kang
Author_Institution :
Dept. of Mech. Eng., Nat. Chiao Tung Univ., Hsinchu, Taiwan
Abstract :
An accelerometer based on a commercial CD/DVD pick-up-head is proposed in this paper. A CD/DVD pick-up-head becomes an accelerometer by transforming the astigmatic measuring mechanism, the suspending wires, and the objective lens as the displacement sensor, the spring, and the seismic mass, respectively. The experiments demonstrate that this cost-effective accelerometer has excellent linearity, ultra high sensitivity of 114 V/g, and an operating frequency of 20 Hz.
Keywords :
CD-ROMs; aberrations; accelerometers; digital versatile discs; lenses; CD-DVD pick-up-head; accelerometer; astigmatic measuring mechanism; displacement sensor; frequency 20 Hz; objective lens; seismic mass; suspending wires; Acceleration; Accelerometers; Atom optics; Bandwidth; DVD; Displacement measurement; Frequency; Lenses; Optical sensors; Seismic measurements;
Conference_Titel :
Advanced Intelligent Mechatronics, 2009. AIM 2009. IEEE/ASME International Conference on
Conference_Location :
Singapore
Print_ISBN :
978-1-4244-2852-6
DOI :
10.1109/AIM.2009.5229966
