免费声阻抗计算器

计算介质的声阻抗(密度乘以声速)。

kg/m³
m/s

Acoustic Impedance

420.18 Pa·s/m

Acoustic Impedance vs Medium Density

查看公式 →

公式

## Acoustic Impedance Acoustic impedance characterizes how much resistance a medium offers to the passage of sound waves. ### Formula **Z = rho * v** where rho is the density of the medium and v is the speed of sound in it. When a wave crosses a boundary between media with different impedances, some energy is reflected and some is transmitted.

计算示例

Acoustic impedance of air at sea level (rho = 1.225 kg/m³, v = 343 m/s).

  1. 01Z = rho * v
  2. 02Z = 1.225 * 343
  3. 03Z = 420.2 Pa·s/m (or rayl)