Apple internal quality detection device based on photoacoustic spectroscopy

The utility model discloses an apple internal quality detection device based on photoacoustic spectroscopy, and belongs to the field of fruit internal quality detection. The device is characterized inthat an infrared laser group, an optical fiber beam combiner, an optical fiber collimator, an adapter and a probe type photoacoustic cavity are sequentially communicated; a silica gel sucker is fixedly embedded into the tail end of the probe type photoacoustic cavity through a fastening nut, and an apple is placed right in front of the silica gel sucker; a microphone is arranged on the side surface of the head end of the probe type photoacoustic cavity; the microphone, the control and signal processing circuit and the touch screen are connected in sequence; the infrared laser set and the control and signal processing circuit are connected with each other. According to the utility model, the combination of the infrared laser group and the optical fiber beam combiner, the optical fiber collimator and the self-desig