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GB/T 20441.7-2025   Electroacoustics—Measurement microphones—Part 7: Values for the difference between free-field and pressure sensitivity levels of laboratory standard microphones (English Version)
Standard No.: GB/T 20441.7-2025 Status:valid remind me the status change

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Language:English File Format:PDF
Word Count: 9000 words Price(USD):270.0 remind me the price change

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Implemented on:2025-5-30 Delivery: via email in 1~3 business day
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Standard No.: GB/T 20441.7-2025
English Name: Electroacoustics—Measurement microphones—Part 7: Values for the difference between free-field and pressure sensitivity levels of laboratory standard microphones
Chinese Name: 电声学 测量传声器 第7部分:实验室标准传声器的自由场灵敏度级和声压灵敏度级之间的差值
Chinese Classification: A59    Acoustic Measurement
Professional Classification: GB    National Standard
ICS Classification: 17.140.50 17.140.50    Electroacoustics 17.140.50
Issued by: SAMR; SAC
Issued on: 2025-05-30
Implemented on: 2025-5-30
Status: valid
Language: English
File Format: PDF
Word Count: 9000 words
Price(USD): 270.0
Delivery: via email in 1~3 business day
本文件:
――给出了由几个实验室的数据按最小二乘法得出的一个多项式函数,以得到IEC 61094-1所规定的实验室标准传声器的自由场灵敏度级和声压灵敏度级之间的差值;
――通过在声压灵敏度级上加上这些差值,使得能够确定在空气中零度入射时的实验室标准传声器的自由场灵敏度级;
――就一系列的频率和温度给出了多项式函数的表格值;
――当无法采用合适的自由场校准时,允许利用这些数据。
Code of China
Standard
GB/T 20441.7-2025  Electroacoustics—Measurement microphones—Part 7: Values for the difference between free-field and pressure sensitivity levels of laboratory standard microphones (English Version)
Standard No.GB/T 20441.7-2025
Statusvalid
LanguageEnglish
File FormatPDF
Word Count9000 words
Price(USD)270.0
Implemented on2025-5-30
Deliveryvia email in 1~3 business day
Detail of GB/T 20441.7-2025
Standard No.
GB/T 20441.7-2025
English Name
Electroacoustics—Measurement microphones—Part 7: Values for the difference between free-field and pressure sensitivity levels of laboratory standard microphones
Chinese Name
电声学 测量传声器 第7部分:实验室标准传声器的自由场灵敏度级和声压灵敏度级之间的差值
Chinese Classification
A59
Professional Classification
GB
ICS Classification
Issued by
SAMR; SAC
Issued on
2025-05-30
Implemented on
2025-5-30
Status
valid
Superseded by
Superseded on
Abolished on
Superseding
Language
English
File Format
PDF
Word Count
9000 words
Price(USD)
270.0
Keywords
GB/T 20441.7-2025, GB 20441.7-2025, GBT 20441.7-2025, GB/T20441.7-2025, GB/T 20441.7, GB/T20441.7, GB20441.7-2025, GB 20441.7, GB20441.7, GBT20441.7-2025, GBT 20441.7, GBT20441.7
Introduction of GB/T 20441.7-2025
本文件:
――给出了由几个实验室的数据按最小二乘法得出的一个多项式函数,以得到IEC 61094-1所规定的实验室标准传声器的自由场灵敏度级和声压灵敏度级之间的差值;
――通过在声压灵敏度级上加上这些差值,使得能够确定在空气中零度入射时的实验室标准传声器的自由场灵敏度级;
――就一系列的频率和温度给出了多项式函数的表格值;
――当无法采用合适的自由场校准时,允许利用这些数据。
Contents of GB/T 20441.7-2025
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Keywords:
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