| 摘要 |
PURPOSE:To obtain reliable and objective data and to automate measurement by detecting the occurrence of a blister with oscillation which is generated when the blister is expanded between an ink and a core at a destruction time. CONSTITUTION:A blister test piece 6 is clipped by a holder 8 supported on a measuring device setting stand 1 and is moved onto a heater 13 covered with a heat insulating material 14. When it is stopped on a shielding plate 15, a temperature sensor 4 and a minutely oscillating pickup 2 are brought into contact with the upper part of the test piece to start measurement, and simultaneously, a timer starts operating. When the test piece is heated after a certain time and is oscillated minutely by the occurrence of blister destruction, the pickup 2 detects this destruction to send a signal to a data processor 7, and the timer is expired to fix a measure 9. Simultaneously, indication on a thermometer scale 10 is fixed, and the temperature and the time at this time are printed out by a printer 11, and a buzzer 12 is sounded to call a measurer's attention. |
