Research on how to use a simple measurement system for accurate temperature measurement

and fast and accurate reconstruction of temperature field

the reconstruction algorithm is very important.In order to achieve a small sonic transit time time of flight（ToF） and high precision temperature field

a new algorithm for reconstruction of air temperature based on block correction interpolation technology is proposed.Around the measured temperature field 8 transceiver ultrasonic sensors are evenly layout.The measured temperature field is divided into 100 small intervals

using the new approach

a single heat source of the laboratory air temperature field is reconstructed

and reconstruction results are coincidence with the measured air temperature field.