Method of 1-dimensional opt-electronic high-speed detecting on 2-dimensional temperature field

In this article, we have given a real-time, high-speed, convenient, economic opt-electronic detecting method of 1-dimension on 2-dimensional temperature field. To avoid the great expenditure of high-speed area CCD, we use coherent fiber bundle, and transform a 2-dimensional temperature image into 1-dimensional spatial optical signal. After it is fed into high-speed line CCD, the original 2-dimensional temperature field will be restored on computer. With this, 2-dimensional temperature field will be further processed on computer. This method has been applied to the investigation on temperature measurement of combustion engine, and the frame frequency of this system has reached at 7 kHz.