热色液晶标定和使用的影响因素

Effects on calibration and use of thermochromic liquid crystal

在全面地分析热色液晶测量方法的基础上,实验研究了热色液晶标定和使用的主要影响因素.保持频闪和相机的相对位置以及两者距拍摄窗口的距离一致,在同一色调值下,拍摄方式(无/有拍摄窗口)、有机玻璃拍摄窗厚度、热力方向(加热/冷却)和热色液晶老化分别产生最大约0.5℃,0.2℃,0.26℃和1.2℃的温度差异.转静间隙不影响热色液晶的显色特性.温度与色调的关系主要与频闪仪的发光介质有关.

Based on comprehensive analysis of thermochromic liquid crystal measurement methods,insight into the main influential factors to any general calibration was provided.The relative position of the strobe and camera and the distance of these two devices to the shooting window were kept,and the temperature difference from the shooting modes with and without shooting window,the thickness of plexiglass shooting window,the differences between cooling or heating cycles（hysteresis） and the number of heating or cooling cycles（aging） are up to 0.5 ℃,0.2 ℃,0.26 ℃ and 1.2 ℃,respectively;the sealing gap of rotor-stator disc does not affect the performance of the thermochromic liquid crystal;the relationship of temperature and hue depends on the light-emitting medium.