Abstract: An optical fiber anemometer based on the Pitot-static tube is reported. The device was fabricated in a 3-D printer, and the pressure difference was assessed by means of a latex rubber diaphragm with a mounted fiber Bragg grating probe, so the membrane deflection is obtained in terms of the fiber curvature. The sensor characteristics were first obtained by the simulation in order to determine the correlation between the Bragg wavelength shifts and the airflow speed. Next, the device was experimentally evaluated in a wind tunnel, allowing for the assessment of a 20-36-m/s dynamic range, with 24.9-pm/(m/s) maximum sensitivity and 0.04-m/s resolution. Finally, the system was tested on the measurement of cyclic airflow speeds for predicting the applied speed according to the calibration curve, yielding reproducible results with an average error of 0.98 m/s, which is comparable to other reported sensors based on more complex designs and interrogation setups

Agradecimentos: This work was supported in part by the Fundação para a Ciência e Tecnologia through Portuguese national funds by hiPOF (PTDC/EEI-TEL/7134/2014), AQUATICsens (POCI-01-0145-FEDER-032057), Investigator Grant IF/01664/2014, and Project INITIATE and in part by the São Paulo Research Foundation #2014/50632-6

Agradecimentos: This work was supported by the Sao Paulo Research Foundation (FAPESP) [Grant Nos: 2017/25666-2 and 2014/50632-6]; the Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq); and the Coordenação de Aperfeiçoamento de Pessoal e Nível Superior (CAPES)

Agradecimentos: The authors thank Jose Aparecido and Claudecir Biazoli for their technical support. This work was supported in part by the Sao Paulo Research Foundation (FAPESP) under Grant 2017/25666-2, Grant 2016/25196-3, and Grant 2014/50632-6, in part by the Conselho Nacional de Desenvolvimento Cientifico e Tecnologico (CNPq), in part by the Coordenacao de Aperfeicoamento de Pessoal e Nivel Superior (CAPES) under Grant 001, and in part by the Projeto TECCON II with Transmissoras Brasileiras de Energia (TBE) through the Framework of the R&D Program of the Brazilian Electricity Regulatory Agency under Grant PD-2615-0011/2015. The associate editor coordinating the review of this paper and approving it for publication was Dr. Anuj K. Sharma. (Corresponding author: Eric Fujiwara.)

Agradecimentos: Authors acknowledge Prof. Maria Aparecida G. Martinez of CEFET-RJ, Prof. Cindy Stella Fernandes of UNIFESSPA-PA, Eng. Renato Trevisano Bellini of CEFET-RJ, Alberto Rubim da Cruz of LABFOT-IME-RJ, Msc. Hugo Eugênio de Freitas of Instituto de Física "Gleb Wataghin" – UNICAMP-SP, Prof. Marcelo Martins Werneck of UFRJ-RJ and Msc. Ariadny da Silva Arcas of UFRJ-RJ, for the partial support to this work. Authors also would like to thank the Brazilian Funding Agencies CAPES and CNPq

Agradecimentos: This work was supported in part by the Sao Paulo Research Foundation (FAPESP) under Grants 2017/25666-2 and 2014/50632-6, in part by the Conselho Nacional de Desenvolvimento Cientifico e Tecnologico (CNPq), and in part by the Coordenacao de Aperfeicoamento de Pessoal e Nivel Superior (CAPES) under Finance Code 001

Agradecimentos: Marcelo Gouveia and Paloma Pellegrini gratefully acknowledge CNPq for their scholarships. Juliana Santos acknowledges a scholarship from FAPESP (grant 11/00322-2), and Ivo Raimundo acknowledges INCTAA (CNPq grant 573894/2008-6 and FAPESP grant 2008/57808-1) for financial support. The authors thank Dr. Felipe Beltran-Mejia for support during simulations, Claudecir Biazoli for thoughtful experimental discussions, and Jose Aparecido dos Santos for technical support

Agradecimentos: This work was funded in part by the São Paulo Research Foundation (FAPESP) under grants no. 2010/51522-9, 2017/09921-2 and 2019/12166-7, and in part by the São Paulo Water Supply Company (SABESP). Experimental work was conducted at the University of Campinas, in the Laboratory of Hydraulics and Fluid Mechanics (LHMF), Laboratory of Specialty Optical Fibers and Optical Sensors (LaFE), and Laboratory of Structural Modeling and Monitoring (LABMEN). The authors would also like to thank Stenio Aristilde and Thiago Delfino for assisting with the experiments, and Espaço da Escrita–Pró Reitoria de Pesquisa–UNICAMP–for the language services provided