均匀性
振幅在指定表面（通常是输出表面或输入表面）上的均匀程度。通常认为均匀性为 1.0（100%）时最优。
忽略振幅中的任何不对称性，均匀性最简单的计算方法是 —
\begin{align} \label{eq:14301a} \widehat{U} = \frac{\overline{U}_{min}}{\overline{U}_{max}} \end{align}
其中 —
| \( \widehat{U} \) | = 均匀性 |
| \( \overline{U}_{min} \) | = 指定表面上的平均最小轴向振幅 |
| \( \overline{U}_{max} \) | = 指定表面上的平均最大轴向振幅 |
平均最小振幅与平均最大振幅分别取自指定表面上的对称位置。
详见 —
均匀性 — 基本概念
均匀性与不对称性 — 计算
Uniformity
The degree to which the amplitude is uniform over a specified surface (typically either the output surface or the input surface). A uniformity of 1.0 (100%) is usually considered optimal.
Ignoring any asymmetry in the amplitude, the simplest calculation of uniformity is —
\begin{align} \label{eq:14301a} \widehat{U} = \frac{\overline{U}_{min}}{\overline{U}_{max}} \end{align}
where —
| \( \widehat{U} \) | = uniformity |
| \( \overline{U}_{min} \) | = average minimum axial amplitude on a specified surface |
| \( \overline{U}_{max} \) | = average maximum axial amplitude on a specified surface |
The average minimum amplitude and average maximum amplitude are from symmetric locations (respectively) on the specified surface.
Details —
Uniformity — Basic Concepts
Uniformity & Asymmetry - Calculation
Also see —
Amplitude droop
Amplitude rise