发布时间:2024-05-27 17:49:26 - 更新时间:2024年06月29日 15:22
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Determination of sound absorption coefficient and impedance in impedance tubes Part 1:Method using standing wave ratio
Determination of sourd apsorption coefficient in tube
Tests in building acoustics; measurement of the sound absorption coefficient in a reverberation room
本标准规定了用脉冲管法、自由场法和压力罐近场法测量水声材料样品插入损失、回声降低和吸声系数的测量方法、测量条件、测量装置和测量不确定度。 本标准适用于水声材料及构件样品插入损失、回声降低和吸声系数的测量,其中脉冲管法适用于小样品的测量,自由场法和压力罐近场法适用于不同频段的大样品测量
Acoustics.Measurement methods of insertion loss,echo reduction and sound absorption coefficient for underwater acoustical material samples
Standard Test Method for Sound Absorption and Sound Absorption Coefficients by the Reverberation Room Method
传递函数法测定法向入射条件下吸声材料的吸声系数,涉及阻抗管的使用、两个传声器的位置和数字频率分析系统。本方法也能用来测定吸声材料的表面声阻抗率或表面声导纳率。由于吸声材料的声阻抗率与它的物理特性(诸如流阻、孔隙率、弹性模量和密度)有关,所以本标准规定的测量方法在有关的基础研究和产品开发方面
Acoustics--Determination of sound absorption coefficient and impedance in impedance tubes Part 2: Transfer function method
Acoustics - Determination of sound absorption coefficient and impedance in impedance tubes - Part 1 : method using standing wave ratio.
Acoustics - Determination of sound absorption coefficient and impedance in impedance tubes - Part 2 : transfer-function method.
1.1 GB/T 18696的本部分规定了测定法向入射时吸声材料和结构的吸声系数、反射因数和表面声阻抗率或表面声导纳率的方法,这些数据是根据阻抗管中法向入射条件下入射正弦平面波和从试件反射回来的平面波叠加后产生的驻波图测定的。由于只需少量的吸声材料作试件,所以它对于吸声材料的参数研究和设计
Acoustics-Determination of sound absorption coefficient and impedance in impedance tubes-Part 1:Method using standing wave ratio
本规范适用于吸收空气声的吸声材料和吸声构件。采用驻波管测量法向入射时的吸声系数和法向声阻抗率
Measurement of sound-absorbing coefficient and sound-resistance rate by method of standing wave tubes
Acoustics-determination of sound absorption coefficient and impedance in impedance tubes-Part 2:Transfer-function method
Standard Test Method for Sound Absorption and Sound Absorption Coefficients by the Reverberation Room Method
Standard Test Method for Sound Absorption and Sound Absorption Coefficients by the Reverberation Room Method
Acoustics-determination of sound absorption coefficient and impedance in impedance tubes-Part 2:Transfer-function method
Specifies a method for the determination of the sound absorption coefficient, reflection factor, surface impedance or admittance of materials
Acoustics - Determination of sound absorption coefficient and impedance in impedance tubes - Part 1: Method using standing wave ratio
Determination of sound absorption coefficient and impedance in impedance tubes Part 1:Method using standing wave ratio
Determination of sourd apsorption coefficient in tube
Tests in building acoustics; measurement of the sound absorption coefficient in a reverberation room
本标准规定了用脉冲管法、自由场法和压力罐近场法测量水声材料样品插入损失、回声降低和吸声系数的测量方法、测量条件、测量装置和测量不确定度。 本标准适用于水声材料及构件样品插入损失、回声降低和吸声系数的测量,其中脉冲管法适用于小样品的测量,自由场法和压力罐近场法适用于不同频段的大样品测量
Acoustics.Measurement methods of insertion loss,echo reduction and sound absorption coefficient for underwater acoustical material samples
Standard Test Method for Sound Absorption and Sound Absorption Coefficients by the Reverberation Room Method
传递函数法测定法向入射条件下吸声材料的吸声系数,涉及阻抗管的使用、两个传声器的位置和数字频率分析系统。本方法也能用来测定吸声材料的表面声阻抗率或表面声导纳率。由于吸声材料的声阻抗率与它的物理特性(诸如流阻、孔隙率、弹性模量和密度)有关,所以本标准规定的测量方法在有关的基础研究和产品开发方面
Acoustics--Determination of sound absorption coefficient and impedance in impedance tubes Part 2: Transfer function method
Acoustics - Determination of sound absorption coefficient and impedance in impedance tubes - Part 1 : method using standing wave ratio.
Acoustics - Determination of sound absorption coefficient and impedance in impedance tubes - Part 2 : transfer-function method.
1.1 GB/T 18696的本部分规定了测定法向入射时吸声材料和结构的吸声系数、反射因数和表面声阻抗率或表面声导纳率的方法,这些数据是根据阻抗管中法向入射条件下入射正弦平面波和从试件反射回来的平面波叠加后产生的驻波图测定的。由于只需少量的吸声材料作试件,所以它对于吸声材料的参数研究和设计
Acoustics-Determination of sound absorption coefficient and impedance in impedance tubes-Part 1:Method using standing wave ratio
本规范适用于吸收空气声的吸声材料和吸声构件。采用驻波管测量法向入射时的吸声系数和法向声阻抗率
Measurement of sound-absorbing coefficient and sound-resistance rate by method of standing wave tubes
Acoustics-determination of sound absorption coefficient and impedance in impedance tubes-Part 2:Transfer-function method
Standard Test Method for Sound Absorption and Sound Absorption Coefficients by the Reverberation Room Method
Standard Test Method for Sound Absorption and Sound Absorption Coefficients by the Reverberation Room Method
Acoustics-determination of sound absorption coefficient and impedance in impedance tubes-Part 2:Transfer-function method
Specifies a method for the determination of the sound absorption coefficient, reflection factor, surface impedance or admittance of materials
Acoustics - Determination of sound absorption coefficient and impedance in impedance tubes - Part 1: Method using standing wave ratio