| 摘要 |
PROBLEM TO BE SOLVED: To easily determine whether or not a temperature history in which a measuring object portion goes over a prescribed temperature is experienced.SOLUTION: A temperature history storage device includes a series circuit with an electric current fuse element (F) and an NTC thermistor element (NT) having a negative temperature coefficient (NTC). A voltage applied to the series circuit is denoted by V. The NTC thermistor element (NT) has a resistance value Rin the temperature lower than a prescribed temperature T, and a resistance value Rin the temperature higher than the prescribed temperature T. When the internal resistance value of the electric current fuse element (F) is denoted by R, a rating electric current Iof the electric current fuse element (F) is expressed by V/(R+R)<I<V/(R+ R). |
