首页>
外国专利>
TIME-TEMPERATURE, UV EXPOSURE AND TEMPERATURE INDICATOR
TIME-TEMPERATURE, UV EXPOSURE AND TEMPERATURE INDICATOR
展开▼
机译:时间-温度,紫外线照射和温度指示
展开▼
页面导航
摘要
著录项
相似文献
摘要
Disclosed is a device for monitoring one or more of integral value of time and temperature, UV light exposure and a pre-determined temperature of an item. The device is useful for monitoring items or materials which are sensitive to time-temperature, UV light and/or a pre-determined temperature. Radiation sensitive devices such as self-indicating instant radiation alert dosimeters (SIRAD) can be accidentally, inadvertently or intentionally over exposed to time-temperature, UV light and a pre-determined higher temperature. Such over exposure can provide a false positive or false negative signal. A device based on polymerization of diacetylenes and melting of partially polymerized diacetylenes, both of which are associated with color changes, are proposed as false positive, false negative, and tamper indicator.
展开▼