On the output frequency measurement within cup anemometer calibrations

Ramos Cenzano, Álvaro and Ogueta Gutierrez, Mikel and Pindado Carrion, Santiago (2019). On the output frequency measurement within cup anemometer calibrations. "Measurement", v. 136 ; pp. 718-723. ISSN 0263-2241. https://doi.org/10.1016/j.measurement.2019.01.015.

Description

Title: On the output frequency measurement within cup anemometer calibrations
Author/s:
  • Ramos Cenzano, Álvaro
  • Ogueta Gutierrez, Mikel
  • Pindado Carrion, Santiago
Item Type: Article
Título de Revista/Publicación: Measurement
Date: January 2019
ISSN: 0263-2241
Volume: 136
Subjects:
Freetext Keywords: Cup anemometer. Anemometer calibration. Output frequency. FFT
Faculty: Instituto de Microgravedad Ignacio Da Riva (UPM)
Department: Aeronaves y Vehículos Espaciales
UPM's Research Group: Desarrollo y Ensayos Aeroespaciales DEA
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

The output frequency of five commercial anemometers (Thies Clima First-Class Advanced) was studied. The output voltage of these anemometers was measured at the calibrations process at 25 kHz sampling frequency, during 25 s. The output frequency was calculated by two different procedures: by Counting Pulses (CP) and by using the Fast Fourier Transform (FFT). The errors of the anemometers’ transfer function based on both ways for calculating the output frequency are given in relation to the reference calibration results, obtained with an ISO 17025 standard calibration process. The effect of the sampling frequency and the length of the sample are analyzed. The results of using FFT are compared to the ones resulting from using CP. Counting Pulses (CP) has proven to be the most accurate way to extract the anemometer’s output frequency from data recorded.

More information

Item ID: 53843
DC Identifier: http://oa.upm.es/53843/
OAI Identifier: oai:oa.upm.es:53843
DOI: 10.1016/j.measurement.2019.01.015
Official URL: https://www.sciencedirect.com/science/article/pii/S0263224119300156
Deposited by: Biblioteca ETSI Aeronauticos
Deposited on: 07 Feb 2019 11:41
Last Modified: 01 Apr 2020 22:30
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