The article is provided by Shanghai Litao Automation Technology Co., Ltd
Recently, the technical research and development team of a domestic enterprise (company name) visited Shanghai Litao Automation Equipment Co., Ltd. for a deep visit and exchange learning activity with the theme of "Measurement Technology of Thermal Conductivity and Thermal Diffusion Coefficient". The purpose of this visit is to gain a deeper understanding of the international thermal property measurement technology - laser flash method, in order to assist the company in achieving new breakthroughs in material research and development, quality control, and product innovation.

Insight into industry needs, focusing on key technologies
Thermal conductivity and thermal diffusivity are core parameters for measuring the thermal and physical properties of materials, which directly affect the application efficiency and reliability of products in fields such as new energy vehicles, aerospace, electronic communication, and building energy conservation. Accurately and efficiently measuring these parameters is crucial for material research and development, process optimization, and product selection.
As an innovator in the field of new materials/manufacturer of electronic products, has high requirements for the thermal management performance of materials. I chose to visit Shanghai Litao this time because of its professional reputation and profound accumulation in the field of thermal analysis instruments, especially in laser flash technology.
Deeply delve into the core technology and experience the charm of laser flash method
During the visit, technical experts from Shanghai Litao provided comprehensive technical explanations and practical demonstrations for the guests.
Principle Explanation: Engineer Litao explained the measurement principle of laser flash method (LFA) in a simple and understandable way: a short laser pulse is uniformly irradiated on the front surface of the sample, and the instantaneous temperature change on the back surface of the sample is measured by an infrared detector. Then, the thermal diffusion coefficient of the material is calculated through a mathematical model, and combined with specific heat capacity and density data, the thermal conductivity is finally obtained. This method has outstanding advantages such as fast measurement speed, high accuracy, and wide temperature range (covering -125 ℃ to over 2000 ℃).
Equipment observation: Guests visited multiple laser flash thermal conductivity analyzers from Shanghai Litao, including their standard models and models for special requirements such as high temperature and small samples. The engineer provided a detailed introduction to the core components of the equipment, including high-energy laser source, high-sensitivity infrared detection system, fully automatic sample transfer mechanism, and precise temperature control system, demonstrating the high reliability and stability of the instrument.
Practical demonstration: The technical team demonstrated the entire process from sample preparation, instrument calibration to actual testing on site. The guests witnessed firsthand the efficient process of completing a high-quality measurement in just a few minutes, and highly appreciated the software's automated data analysis, rich model fitting capabilities, and detailed reports generated.

About Shanghai Litao
Shanghai Litao Automation Equipment Co., Ltd. is a domestic supplier of thermal analysis instruments and solutions, always committed to providing advanced and reliable material thermal property testing equipment for research institutes and industrial enterprises. Its laser flash method series products have won wide trust from domestic and foreign customers with excellent performance, stable quality, and comprehensive after-sales service.











