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IEC 61012*CEI 61012

Filters for the measurement of audible sound in the presence of ultrasound

Số trang: 13
Ngày phát hành: 1990-01-00

Liên hệ
Defines the electrical characteristics of a U-weighting filter mainly for use with sound level meters meeting the requirements of IEC 651. Where the measurement of the ultrasonic component frequencies is required, the practice is to measure the unweighted sound pressure level. A narrow band or one-third octave band filter is usually included in the measuring chain. However is not concerned with the measurement of such components, nor with any possible hazard from them.
Số hiệu tiêu chuẩn
IEC 61012*CEI 61012
Tên tiêu chuẩn
Filters for the measurement of audible sound in the presence of ultrasound
Ngày phát hành
1990-01-00
Trạng thái
Có hiệu lực
Tiêu chuẩn tương đương
DIN EN 61012 (1998-09), IDT * DIN IEC 61012 (1995-02), IDT * BS 7422 (1991), IDT * BS EN 61012 (1991-02-28), IDT * EN 61012 (1998-04), IDT * prEN 61012 (1997-08), IDT * NF C97-601 (1998-08-01), IDT * SN EN 61012 (1998), IDT * OEVE EN 61012 (1998-05-19), IDT * PN-EN 61012 (2001-02-19), IDT * SS-IEC 1012 (1991-04-24), IDT * SS-EN 61012 (1998-08-28), IDT * UNE-EN 61012 (2001-05-31), IDT * NEN 11012 (1991), IDT * STN EN 61012 (2002-04-01), IDT * CSN IEC 1012 (1995-01-01), IDT * DS/EN 61012 (1998-11-05), IDT * NEN-EN-IEC 61012:1998 en;fr (1998-05-01), IDT * NEN 11012:1991 en;fr (1991-01-01), IDT
Tiêu chuẩn liên quan
ISO 266 (1975-07)
Thay thế cho
Thay thế bằng
Lịch sử ban hành
IEC 61012*CEI 61012 (1990-01)
Filters for the measurement of audible sound in the presence of ultrasound
Số hiệu tiêu chuẩn IEC 61012*CEI 61012
Ngày phát hành 1990-01-00
Mục phân loại 17.140.01. Các phép đo âm học và độ ồn nói chung
Trạng thái Có hiệu lực
Từ khóa
Acoustic equipment * Acoustic filters * Acoustic measurement * Acoustics * Applications * Audibility * Electrical engineering * Electroacoustics * Filters * Frequencies * Measurement * Measuring instruments * Ratings * Specification (approval) * Ultrasonics * Implementation * Use
Số trang
13