A59 声学计量 标准查询与下载
共找到 512 条与 声学计量 相关的标准，共 35 页
Technical specification for operation of electroacoustic free-field sound pressure reference
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Polarization Maintaining Fiber Crosstalk Calibration Specifications
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Polarization-maintaining fiber beat length calibration specification
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Technical specifications for the operation of the sound pressure secondary reference of the coupled cavity reciprocity method
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Air conduction hearing zero level benchmark operation technical specification
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3cm, 5cm coaxial thermal noise benchmark operation technical specification
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Technical specification for sound pressure reference operation of coupled cavity reciprocity method
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Watt-level ultrasonic power sub-benchmark operation technical specification
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本技术文件规定了飞机飞行振动环境测量用加速度计的校准技术要求，以保证飞行振动环境测量的精度。
Calibration technical requirements for vibration accelerometers in aircraft flight vibration environment measurement
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Milliwatt Ultrasonic Power Reference Operating Technical Specifications
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Milliwatt level ultrasonic power sub-benchmark operation technical specification
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