Investment casting is a leading technique to manufacture very reliable components. The design and the optimization of this process are usually performed by simulation software and/or by means of simplified models based on heat transfer coefficients obtained by solving the inverse heat conduction problem (IHCP). Both methods require experimental tests, that involve temperature measurements, aiming at validating the investment casting simulations or evaluating the heat transfer coefficients in the IHCP. Typically, all these temperature measurements are performed with thermocouples that are characterized by several limits, such as heat transfer alteration, approximate location of the measurement points, and spatial-limited evaluation of the heat transfer coefficients. In order to overcome these limits, the infrared thermography is proposed as an alternative measurement technique. The infrared thermography allows to obtain complete and spatial-accurate information about the surface temperature of an investigated body which, in particular, is a ceramic shell mould in the present work. Since the infrared thermography is a 2D technique, the purpose of this work is to provide a procedure to experimentally reconstruct the 3D temperature surface distribution of this ceramic shell mould in a real industrial environment with all its space and time constraints.

精密铸造是制造非常可靠的零件的领先技术。该过程的设计和优化通常由模拟软件和/或基于通过求解逆导热问题（IHCP）获得的传热系数的简化模型进行。两种方法都需要进行涉及温度测量的实验测试，目的是验证精密铸造模拟或评估IHCP中的传热系数。通常，所有这些温度测量都是通过热电偶来执行的，这些热电偶的特征在于几个限制，例如热传递变化，测量点的大致位置以及热传递系数的空间受限评估。为了克服这些限制，提出了红外热成像技术作为替代测量技术。红外热像仪可以获取有关被调查物体表面温度的完整且空间精确的信息，该物体尤其是当前工作中的陶瓷壳模具。由于红外热成像技术是一种2D技术，因此这项工作的目的是提供一种程序，可以在真实的工业环境中，以其所有时空限制，以实验方式重建该陶瓷壳模具的3D温度表面分布。