Describes instruments for the measurement of frequency weighted and time averaged sound pressure levels. Optionally, sound exposure levels may be measured. Is consistent with the relevant requirements of IEC Publication 651, but specifies additional characteristics which are necessary to measure the equivalent continuous sound pressure level of steady, intermittent, fluctuating and impulsive sounds. The differences between the time averaging characteristics of an integrating sound level meter and those of a conventional sound level meter are discussed in appendix A.
Số hiệu tiêu chuẩn
HD 499 S1
Tên tiêu chuẩn
Integrating-averaging sound level meters
Ngày phát hành
1990-12-00
Tiêu chuẩn tương đương
DIN IEC 60804 (1987-01), IDT * NF S31-109 (1991-04-01), IDT * IEC 60804 (1985), IDT * IEC 60804 AMD 1 (1989-09), IDT * OEVE HD 499 S1 (1991-01-22), IDT * UNE 20493 (1993-12-29), IDT * STN EN 60804 (2002-06-01), IDT
Từ khóa
Acoustic devices * Acoustic measurement * Acoustics * Acoustoelectric devices * Averaging levels * Calibration * Common terms * Definitions * Electrical engineering * Inspection * Integral * Integrate * Marking * Mean * Measurement * Measuring instruments * Metrology * Operational instructions * Precision * Properties * Resistance * Sound intensity * Sound levels * Sound meters * Sound pressure level * Sound-level meters * Specification (approval) * Stability * Testing * Vibration engineering
.jpg&w=145&h=165){kind=logo}
.png)
.jpg){kind=logo}
.jpg){kind=logo}
-_-logo.png){kind=logo}
HD 499 S1