A CMOS wind speed to frequency converter with calibration circuits

Author

Cheng-Ta Chiang ; Ji-Yan Lin

Author_Institution

Dept. of Electr. Eng., Nat. Chia Yi Univ., Chiayi, Taiwan

fYear

2013

fDate

4-7 Aug. 2013

Firstpage

201

Lastpage

206

Abstract

In this paper, a CMOS wind speed to frequency converter with calibration circuits is newly proposed. A calibration technique is proposed in this work. Another innovation is that the outputs of the proposed chip are directly digitized, they could be easily sent over a wide range of transmission media, such as PSN, radio, optical, IR, ultrasonic, and etc. Before performing the proposed calibration circuits, the maximum linear error is 57.3%. After calibration, the maximum linear error is reduced to 2.4%.The wind speed range is 2.6 to 3.1 m/s, and the corresponding output frequency range is 78.1 kHz to 455 kHz. The chip area is 1.08 × 1.08 mm². The proposed chip is suitable for devices of measuring wind speed.

Keywords

CMOS integrated circuits; atmospheric measuring apparatus; calibration; frequency convertors; velocity measurement; wind; CMOS wind speed; calibration circuits; frequency 78.1 kHz to 455 kHz; frequency converter; maximum linear error; transmission media; CMOS integrated circuits; Calibration; Fluid flow measurement; Frequency conversion; Simulation; Transducers; Wind speed; calibration circuits; wind sensor; wind transducer;

fLanguage

English

Publisher

ieee

Conference_Titel

Mechatronics and Automation (ICMA), 2013 IEEE International Conference on

Conference_Location

Takamatsu

Print_ISBN

978-1-4673-5557-5

Type

conf

DOI

10.1109/ICMA.2013.6617918

Filename

6617918