NDT model study of crown pear based on near infrared spectroscopy Honghong Li, Jinpeng Song, Yuhang Zhang, Hao Zhang, Lijuan Han, Kai Zhang and Xuesong Suo ITM Web Conf., 47 (2022) 02045 Published online: 23 June 2022 DOI: 10.1051/itmconf/20224702045