抄録
By means of an inkjet printing device, a pressure-sensitive dot array sensor has been developed for unsteady pressure measurements. A conventional bi-luminophore anodized aluminum Pressure-Sensitive Paint (AA-PSP) prepared by a dipping method does not work well due to the interference between the two luminophores. To avoid this problem, we developed a pressure-sensitive dot array sensor on an anodized aluminum substrate using Ru(dpp)3 as a pressure-sensitive luminophore dissolved in four solvents: methanol, dichloromethane, chloroform, and the mixed solvent of dichloromethane and chloroform. Formed PSP dots exhibited significantly different properties including the luminescence intensity distribution inside the dot and pressure sensitivity by the solvents. As a result, the PSP solutions with dichloromethane or the mixed solution of dichloromethane and chloroform, which evaporated quicker than other solvents, formed dots with the uniform distribution of luminescence and showed that comparable pressure sensitivity with conventional AA-PSP prepared by a dipping method.
