| Name | Unterstützung | Language | Verfügbarkeit | Datum der Ausstellung | Preis | ||
|---|---|---|---|---|---|---|---|
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PDF |
Englisch |
gültig |
25.04.2016 |
157,00 € |
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Details
Part 7 of the ANSI/ASA S12.9 series describes cautions and unique techniques for measuring lowfrequency
noise (LFN) outdoors in the presence of wind. It is necessary to measure in wind for wind turbine
projects and for countless other industrial power and facilities where environmental wind speed cannot be
controlled or levels are specified under downwind conditions. The standard also describes a uniform and
repeatable methodology for documenting LFN levels and spectra indoors in occupied spaces where modal
considerations are important. The principal concern outdoors is wind-induced noise (WIN) created by wind
sources alone. The best estimates for WIN versus wind speed are presented herein based on the literature
and special testing conducted by the working group for this standard. The standard is intended to define
methods for routinely observed or monitored measurements of infrasound and LFN (ILFN) with standard
off-the-shelf instrumentation, commercially available or special windscreens, and microphones appropriate
to the task at hand. Following the standard methods should promote uniform, repeatable, and comparable
data from site to site.
Zusätzliche Information
| Autor | Acoustical Society of America (ASA) |
|---|---|
| Veröffentlicht von | ASA |
| Document type | Normen |
| Thema | /subgroups/2399 |
| Datum der Bestätigung | 2020-01-01 |
| Seitenzahl | 42 |
| Schlagwort | ASA S12.9-2016/Part 7 |
| ANSI Approved |
