Fecha de publicación: 25/07/2012 Fuente: WIPO "tobacco agriculture" The invention relates to a coating and pelleting seed cracking rate detector, which is in a square box body shape, wherein the box body is divided into two parts, one part is a cracking box, one part is a water storage box, a cover plate is arranged at the middle lower part of the cracking box, a water supply cavity is arranged under the cover plate, a water outlet hole is arranged in the cover plate, the two ends of the water supply cavity are provided with a water inlet and a water outlet, the water storage box is divided into two independent cavities: an upper cavity and a lower cavity, the lower cavity is a water storage cavity, the upper cavity is a controller installing cavity, the water inlet of the water supply cavity is arranged at the water outlet end of a quantitative water filling device, the water inlet end of the quantitative water filling device is arranged in the water storage cavity, a water inlet pipe and an exhaust pipe are arranged above the water storage cavity, the water inlet pipe is connected with a water source, an exhaust valve is arranged under the water inlet pipe, a support frame is arranged at the side edge of the cracking cavity, a timing automatic camera is arranged on the support frame and is fixedly arranged in the center above the cracking cavity, a starting switch of the camera is arranged on the quantitative water filling device, a level instrument is arranged on a panel of the cracking box, and horizontal regulating feet are arranged at the bottom. The detector has the functions of precisely controlling the water temperature, the water addition quantity and the level degree, and the coating and pelleting seed cracking rate can be fast and accurately calculated in the coating and pelleting seed cracking process.