Temperature-induced error is a major issue in pressure-sensitive paint (PSP) measurement, which usually comes from the inherent thermal quenching effect of luminophores. Herein, we successfully eliminate the temperature sensitivity in a sprayable fast-responding PSP. This PSP contains two luminophores (coumarin 6 and PtTFPP) with opposite temperature sensitivities, which cancel the temperature effect in the 515–800 nm spectral range, making it a temperature-canceled PSP (TC-PSP). The sensing properties of the TC-PSP (pressure sensitivity, temperature sensitivity, signal level, and response time) are characterized and compared with those of a single-luminophore PSP with the same mesoporous particle binder (MP-PSP). The TC-PSP exhibits an extremely low temperature sensitivity of 0.015 %/℃ in the 20–60 ℃ range, a value approximately 1 % that of the MP-PSP (1.35 %/℃). Its temperature sensitivity and corresponding temperature-induced error are significantly lower than the previously reported temperature-insensitive fast PSPs. In a jet impingement experiment conducted for validation, the TC-PSP showed excellent performance in eliminating the temperature-induced error. Overall, the developed TC-PSP holds great potential for high-speed aerodynamic testing applications.

温度引起的误差是压敏涂料 (PSP) 测量中的一个主要问题，它通常来自发光体固有的热猝灭效应。在这里，我们成功地消除了可喷涂快速响应 PSP 中的温度敏感性。该 PSP 包含两种具有相反温度敏感性的发光体（香豆素 6 和 PtTFPP），可抵消 515-800 nm 光谱范围内的温度效应，使其成为温度抵消 PSP (TC-PSP)。对 TC-PSP 的传感特性（压力灵敏度、温度灵敏度、信号电平和响应时间）进行了表征，并与具有相同介孔颗粒粘合剂 (MP-PSP) 的单发光体 PSP 的传感特性进行了比较。TC-PSP 在 20–60 ℃ 范围内表现出 0.015 %/℃ 的极低温度灵敏度，约为 MP-PSP (1.35 %/℃) 的 1 % 的值。其温度敏感性和相应的温度引起的误差明显低于先前报道的温度不敏感的快速 PSP。在为验证而进行的射流冲击实验中，TC-PSP 在消除温度引起的误差方面表现出出色的性能。总体而言，开发的 TC-PSP 在高速气动测试应用方面具有巨大潜力。