超声无损检测术语

1范围

本标准界定了用于超声无损检测方法的术语，作为标准和一般使用的共同基础。2一般术语

2.1声吸收acoustical absorption

2.2声各向异性acoustical anisotropy

2.3声阻抗acoustical impedance

2.4声影acoustic shadow

阴影区shadow zone

2.5衰减attenuation

声衰减sound attenuation

2.6声衰减系数attenuation coefficient

2.7声束轴线beam axis

2.8声束边缘beam edge

2.9声束轮廓beam profile

2.10声束扩散beam spread

2.11分贝decibel

db

2.12不连续discontinuity

2.13边缘效应edge effect

2.14远场far field

2.15缺陷flaw

defect

2.16界面interface

2.17背反射损失loss of back reflection 底波损失

2.18近场near field

菲涅耳区fresnel zone

2.19近场长度near field length

2.20近场点near field point

2.21传播时间propagation time

time of flight

声时

2.22反射系数reflection coefficient 2.23反射体reflector

2.24散射scattering

2.25声场sound field

2.26声速sound velocity

传播速度velocity of propagation

2.27检测频率test frequency

2.28超声声束ultrasonic beam

声束sound beam

2.29超声波ultrasonic wave 3与“波”相关的术语

3.1纵波longitudinal wave

压缩波compressional wave

3.2连续波continuous wave 3.3爬波creeping wave

3.4波型转换mode conversion mode transfomation

wave conversion

3.5板波plate wave

兰姆波lamb wave

3.6横波transverse wave

切变波shear wave

3.7球面波spherical wave

3.8表面波surface wave

瑞利波rayleigh wave

3.9波前wavefront

波阵面

3.10波长wavelength

3.11波列wave train

4与“角”相关的术语

4.1入射角angle of incidence 4.2反射角angle of reflection 4.3折射角angle of refraction 4.4临界角critical angle

4.5扩散角divergence angle 指向角

5与“脉冲和回波”相关的术语5.1背面回波back wall echo back surface echo

背反射back reflection

底波bottom echo

b

5.2延迟回波delayed echo 5.3回波echo

反射reflection

5.4缺陷回波flaw echo

defect echo

f

不连续回波discontinuity echo

d

5.5幻影回波ghost echo

phantom echo

wrap-around

5.6草状回波grass

组织回波structural echoes

5.7界面回波interface echo

5.8多次回波multiple echo

多次反射multiple reflection

5.9脉冲pulse

5.10侧面回波side wall echo

w

5.11干扰回波spurious echo

parasitic echo

5.12界面波surface echo

s

表面回波

5.13发射脉冲指示transmission pulse indication t

始波

5.14发射脉冲transmitter pulse

6与“探头”相关的术语

6.1斜射探头angle beam probe

angle beam search unit

斜探头angle probe

6.2中心频率centre frequency

6.3会聚距离convergence distance

6.4会聚区convergence zone

会聚点convergence point

6.5延迟声程delay path

6.6场深depth of field

焦区长度focal zone

focal range

6.7双换能器探头double transducer probe

双晶探头twin transducer probe

双探头dual search unit

6.8有效换能器尺寸effective transducer size 6.9电磁声换能器electro-magnetic transducer 电动换能器electrodynamic transducer