【摘要】 本文叙述从固定边界的圆形膜的振动理论出发，并通过各种实验，分析成品罐头真空度与顶盖 振动特性之间的关系，从而设计出一套电子线路对罐头真空度进行非破坏性鉴测。文中给出了仪器工 作原理，设计思想及实测数据．更多还原

【Abstract】 This paper presents the nondestructive testing methods for identifying the accum of canned food containers based on the vibration theory of fixed boun- dary round membranes, by virtue of which the reiationship between the vibra- von characteristies of the top lid of the canned food containers and the va- ccum are analyzed. The facilities for the test had been built, several kinds of experiments were done. The principles for the building facilities together with teihtdesigning idea and the data measured are also accounted for herein.更多还原