High-frequency NO-PLIF imaging measurement device and method

;The invention relates to a high-frequency NO-PLIF imaging measurement device and method for a combustion field, and the device comprises a high-frequency laser which is used for generating 1064nm laser with the repetition frequency of 100kHz and outputting 355nm laser after triple frequency multiplication of the 1064nm laser, wherein the 355nm laser is divided into a first 355nm laser beam and asecond 355nm laser beam through a first lens a seed laser module which is used for generating 822.3 nm seed laser; an optical parametric oscillator which is used for converting the first beam of 355 nm laser input by the high-frequency laser and the 822.3 nm laser input by the seed laser module to generate 624.7 nm laser; an NO-PLIF module which is used for synthesizing 624.7 nm laser input by theoptical parametric oscillator and a second beam of 355 nm laser input by the high-frequency laser into 226 nm light, wherein the 226 nm light is gathered in a standard gas pool through a convex lensto react with NO to generat