Deviations of cup anemometer rotational speed measurements due to steady state harmonic accelerations of the rotor

被引：10

作者：

Martinez, Alejandro ^{[1
]}

Vega, Enrique ^{[1
]}

Pindado, Santiago ^{[1
]}

Meseguer, Encarnacion ^{[1
]}

Garcia, Luis ^{[1
]}

机构：

[1] Univ Politecn Madrid, ETSI Aeronaut & Espacio, Inst Univ Microgravedad Ignacio Da Riva IDR UPM, Pza Cardenal Cisneros 3, E-28040 Madrid, Spain

来源：

MEASUREMENT | 2016年 / 90卷

关键词：

Cup anemometer; Wind speed measurements; Fourier analysis; DIGITAL TACHOMETER; MICROPROCESSOR; PERFORMANCE; RANGE;

D O I：

10.1016/j.measurement.2016.05.011

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The measurement deviations of cup anemometers are studied by analyzing the rotational speed of the rotor at steady state (constant wind speed). The differences of the measured rotational speed with respect to the averaged one based on complete turns of the rotor are produced by the harmonic terms of the rotational speed. Cup anemometer sampling periods include a certain number of complete turns of the rotor, plus one incomplete turn, the residuals from the harmonic terms integration within that incomplete turn (as part of the averaging process) being responsible for the mentioned deviations. The errors on the rotational speed due to the harmonic terms are studied analytically and then experimentally, with data from more than 500 calibrations performed on commercial anemometers. (C) 2016 Elsevier Ltd. All rights reserved.

引用

页码：483 / 490

页数：8

共 32 条

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[Anonymous], RISOR1555EN

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