a School of Life Science and Engineering , Southwest University of Science and Technology , Mianyang , Sichuan , PR China.
b Engineering Research Center for Biomass Resource Utilization and Modification of Sichuan Province , Mianyang , Sichuan , PR China.
Crit Rev Food Sci Nutr. 2018;58(14):2386-2397. doi: 10.1080/10408398.2017.1324830. Epub 2017 Aug 24.
Quality evaluation of agro-products is quite important because it is the basis for growers, distributers, and consumers. Various novel and emerging nondestructive methods were proposed for quality evaluation of agro-products. The acoustic vibration method is one of the major nondestructive methods for agro-products in pre- and postharvest research and industrial practice. Acoustic vibration characteristics of agro-products can be used for texture evaluation, prediction of optimum eating and harvest ripeness, ripeness classification and defect detection. Generally, there are three parts in the process of acoustic vibration method, including the excitation module, signal acquisition module, and signal-processing module. The impact method and forced method are two excitation methods in the excitation module, and there are contact and noncontact sensors for vibration measurement in the signal acquisition module. Noncontact measurement can meet the requirement of rapid and nondestructive measurement, especially for the on-line detection. However, increasing demand for accurate and cost-effective measurement remains a challenge in the agro-products industry. Comparison of acoustic vibration methods and traditional destructive methods was also discussed, which helps to give a more comprehensive assessment for the acoustic vibration method.
农产品质量评价非常重要，因为它是种植者、经销商和消费者的基础。各种新颖的新兴无损检测方法被提出用于农产品的质量评价。声振法是农产品在采前和产后研究及工业实践中的主要无损检测方法之一。农产品的声振特性可用于质地评价、最佳食用和收获成熟度的预测、成熟度分类和缺陷检测。一般来说，声振法包括激励模块、信号采集模块和信号处理模块三个部分。激励模块中的冲击法和强制法是两种激励方法，信号采集模块中的振动测量有接触式和非接触式传感器。非接触式测量可以满足快速无损测量的要求，特别是在线检测。然而，在农产品行业，对准确和具有成本效益的测量的需求不断增加仍然是一个挑战。还讨论了声振法与传统破坏性方法的比较，这有助于对声振法进行更全面的评估。
