Aerodynamic Research and Development Directorate, Japan Aerospace Exploration Agency/Chofu, Tokyo 182-8522, Japan.
Sensors (Basel). 2010;10(7):6836-47. doi: 10.3390/s100706836. Epub 2010 Jul 16.
Anodized-aluminum pressure-sensitive paint (AA-PSP) has been used as a global pressure sensor for unsteady flow measurements. We use a dipping deposition method to apply a luminophore on a porous anodized-aluminum surface, controlling the luminophore concentration of the dipping method to optimize AA-PSP characteristics. The concentration is varied from 0.001 to 10 mM. Characterizations include the pressure sensitivity, the temperature dependency, and the signal level. The pressure sensitivity shows around 60 % at a lower concentration up to 0.1 mM. Above this concentration, the sensitivity reduces to a half. The temperature dependency becomes more than a half by setting the luminophore concentration from 0.001 to 10 mM. There is 3.6-fold change in the signal level by varying the concentration. To discuss an optimum concentration, a weight coefficient is introduced. We can arbitrarily change the coefficients to create an optimized AA-PSP for our sensing purposes.
阳极氧化铝压敏漆（AA-PSP）已被用作非定常流测量的全局压力传感器。我们使用浸渍沉积法在多孔阳极氧化铝表面施加发光体，通过控制浸渍法的发光体浓度来优化 AA-PSP 的特性。浓度范围从 0.001 到 10mM。特性包括压力灵敏度、温度依赖性和信号水平。在较低浓度下（低至 0.1mM），压力灵敏度约为 60%。在这个浓度以上，灵敏度降低到一半。通过将发光体浓度设置为 0.001 到 10mM，温度依赖性增加了一倍以上。通过改变浓度，信号水平有 3.6 倍的变化。为了讨论最佳浓度，引入了权重系数。我们可以任意改变系数，为我们的传感目的创建优化的 AA-PSP。
