SIST ISO 16622:2004 PDF

Name: SIST ISO 16622:2004 — Meteorology - Sonic anemometers/thermometers - Acceptance test methods for mean wind measurements
SKU: SIST ISO 16622:2004
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Meteorology - Sonic anemometers/thermometers - Acceptance test methods for mean wind measurements

Название (английский):

SIST ISO 16622:2004

Meteorology - Sonic anemometers/thermometers - Acceptance test methods for mean wind measurements

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 21
Дата публикации:: 1 июня 2004 г.
ICS:: 07.060
Технический комитет:: KAZ - Air quality

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Описание (английский):

ISO 16622:2002 defines test methods of the performance of sonic anemometers/thermometers which employ the inverse time measurement for velocity of sound along differently oriented paths. It is applicable to designs measuring two or three components of the wind vector within an unlimited (360°) azimuthal acceptance angle.

Abstract

Похожие стандарты

Стандарты, упомянутые в описании

Overview

ISO 16622:2002 - "Meteorology - Sonic anemometers/thermometers - Acceptance test methods for mean wind measurements" - defines standardized acceptance tests for sonic anemometers/thermometers that use the inverse time measurement of sound velocity along differently oriented sound paths. It applies to instruments measuring two- or three-component wind vectors with an unlimited (360°) azimuthal acceptance. The standard supports reliable mean wind measurements using sonic arrays (typical path lengths ~10–20 cm) and helps ensure instrument performance for meteorology, air quality, and dispersion applications.

Key topics and requirements

Measurement principle: Inverse time measurement of the velocity of sound along transducer pairs (sound paths) to derive wind components and sonic temperature.

Array inspection: Verify mechanical array integrity, transducer alignment and path lengths before testing.

Minimum acceptance tests:

Zero wind chamber test - determines zero offset (system delay asymmetry) and temperature dependence of offsets.
Wind tunnel test - evaluates vector deviation between measured and true wind across ranges of flow speed and direction.
Field test - assesses instrument response under real environmental conditions (adverse or complex flow) not easily simulated in the lab.

Optional test:

Pressure chamber test - recommended when operating above 2 000 m altitude to confirm performance at reduced air densities (sound transmission limits).

Performance evaluation: Accuracy, repeatability and reproducibility reporting in accordance with ISO 5725 principles.

Definitions and metrics: System delay, transit time, turbulence level, zero offset and other formal terms used for standardized reporting.

Applications

ISO 16622 is directly applicable where accurate, repeatable mean wind measurements are required:

Routine and research meteorological monitoring

Atmospheric dispersion and air-quality studies

Wind resource assessment and microclimate studies

Environmental compliance and regulatory monitoring

Instrument manufacturing quality control and acceptance testing

Who should use this standard

Sonic anemometer/thermometer manufacturers for factory acceptance and calibration processes

Calibration laboratories and wind tunnel facilities conducting performance tests

Meteorological services, environmental agencies, research institutions and consultants validating instrument suitability for deployments

Field operators planning high-altitude or harsh-environment measurements

Related standards

Normative references cited by ISO 16622 include:

ISO 5725-1 / ISO 5725-2 (accuracy, repeatability/reproducibility)

ASTM D5741-96

WMO/CIMO Guide to meteorological instruments and methods of observation

Keywords: ISO 16622, sonic anemometer, sonic thermometer, acceptance test methods, mean wind measurements, zero wind chamber, wind tunnel test, pressure chamber test, field test, inverse time measurement.

SIST ISO 16622:2004 PDF

Abstract

Похожие стандарты

Overview

Key topics and requirements

Applications

Who should use this standard

Related standards

Технические детали

ISO 16622:2002

Meteorology — Sonic anemometers/thermometers — Acceptance test methods for mean wind measurements

ISO 5725-6:1994/Cor 1:2001

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