Infrared Matrix Non-Contact Measurement Of Raw-Milk Gas-Liquid Two-Phase Flows

Research focus on the raw-milk gas-liquid two-phase flow(GLTF) in the micro tube as object, established two models of GLTF that the GLTF in the cylindrical micro tube and the GLTF in the rectangle micro tube, respectively. Introduced a non-contact methodology to recognize and quantitate GLTF utilizing the designed infrared matrix. Infrared matrix signal results respectively successfully achieved in the simulation experiment and the producing line experiment, processing time-dimension analysis, frequent-dimension analysis, cross-correlation analysis, little wave pack analysis, high speed camera photos signal assisted analysis, and 3-dimension rebuilt GLTF analysis, it proved that GLTF in a state of low frequency spectrum concentrated at low velocity of flow, migrating to higher frequency spectrum with two frequency spectrum peaks at a higher velocity of flow. According to results of 8 effective samples, it verified the correctness and the significant cross correlation between the measurement value number and the actual milk volume. Moreover, the GLTF model in the rectangular micro tube and the infrared matrix non-contact method were proved that can recognize and quantitate GLTF preliminarily. With contact pressure sensor compared to the method of GLTF using non-contact method by the infrared matrix can minimize convective-type interference, for further in-depth study of gas-liquid two-phase flow regime identification and flow evolution mechanism studies provide a theoretical exploration, additionally for further study of non-contact measurement GLTF of raw-milk by infrared matrix non-destructive examination and testing studies provide a practical exploration.