摘要:
An internal pressure inspection apparatus for a sealed container having a can lid that is attached to any of an upper end and a lower end of a can trunk, and that is deformed by an internal pressure of the container. A laser sensor adapted to measure a distance from the can lid by irradiating the can lid is situated parallel to the can lid while being allowed to move relatively with the can lid. The inspection apparatus integrates relative displacement values between a reference point closer to a center of the can lid than a seamed portion and other points closer to a center of the can lid than the reference point, and acceptability of the internal pressure is judged based on the value of integration.
摘要:
An induction heating apparatus for heating content efficiently while measuring a temperature of the heated content accurately. The induction heating apparatus 4 is comprised of a can holder 6, a heating coil 9 disposed around the can holder 6, and a temperature measuring means 10. A resealable metal beverage can 1 having a thread formed on a neck portion and a cap 3 screwed onto the neck portion is held by the can holder 6. The can holder 6 holds the metal beverage can 1 in a manner such that the cap of the can 1 inserted thereto is exposed on an axially upper side. The temperature measuring means 10 measures a surface temperature of the cap 3 of the metal beverage can 1 held in the can holder 6.