IEC 61391-2:20 10定义了用于测量实时超声B型扫描仪的最大穿透深度和局部动态范围的术语和方法。与这些扫描仪一起使用的传感器类型包括: -机械探针； -电子相控阵； -线性阵列； -弯曲阵列； -二维阵列； -基于上述类型的组合的三维扫描探针。 考虑的所有扫描仪都基于脉冲回波技术。该测试方法适用于工作在1 MHz至15 MHz频率范围内的传感器，工作在基波模式和扩展到15 MHz的谐波模式下。然而，本标准不包括15 MHz以上谐波模式的测试。

IEC 61391-2:2010 defines terms and specifies methods for measuring the maximum depth of penetration and the local dynamic range of real time ultrasound B MODE scanners. The types of transducers used with these scanners include:
- mechanical probes;
- electronic phased arrays;
- linear arrays;
- curved arrays;
- two-dimensional arrays;
- three-dimensional scanning probes based on a combination of the above types.
All scanners considered are based on pulse-echo techniques. The test methodology is applicable for transducers operating in the 1 MHz to 15 MHz frequency range operating both in fundamental mode and in harmonic modes that extend to 15 MHz. However, testing of harmonic modes above 15 MHz is not covered by this standard.