PINHOLE DETECTOR, PINHOLE DETECTING METHOD AND PINHOLE DETECTING PACKED BODY

摘要

PROBLEM TO BE SOLVED: To provide a pinhole detector for measuring a pressure simply by utilizing expansion or compression caused by the pressure, of an elastic object having a gas enclosed therein. SOLUTION: This pinhole detector comprising the elastic object having the gas enclosed therein, this pinhole detecting method utilizing the pinhole detector, and this pinhole detecting packaged body enclosing the pinhole detector are provided.