Abstract: The present disclosure provides a thermal event monitoring system. Specifically, there is provided a passive thermal sensor configured to detect an occurrence of thermal cycles, and to record a cumulative count of thermal cycles via alteration of an electrical property of the thermal sensor. That is, the thermal sensor detects and records thermal cycles or thermal events without the need for power, by alteration of a physical characteristic that changes a measurable electrical property of the sensor. Each alteration of the electrical property is non-transient, and therefore the record of the cumulative count and/or thermal events does not erase with time. Also provided is a reader that measures the electrical property to generate a signal, which is transmitted by a communication interface to a host controller. The provided system thus enables counting of thermal cycles without the need for continuous power, which may be particularly beneficial for remote monitoring in harsh environments.

Abstract: A thermal cycle detector includes a first temperature reservoir, a second first temperature reservoir, first thermal barrier, and a plurality of first electrical conductors spanning the first thermal barrier. The first temperature reservoir includes a first transistor, and the second temperature reservoir includes a second transistor. The first thermal barrier is disposed between the first temperature reservoir and the second temperature reservoir. The plurality of first electrical conductors is configured to provide an electrical power source for the thermal cycle detector in response to a thermal gradient across the plurality of first electrical conductors.

Abstract: The present disclosure provides a core temperature sensing assembly for measuring a core temperature of an object when positioned on a surface of the object. The sensing assembly uses a heat flux sensor in the form of a thermoelectric generator. The thermoelectric generator is provided as part of an integrated circuit. Alternatively or additionally, the sensing assembly uses the thermoelectric generator to actively heat or cool the object. Alternatively or additionally, the sensing assembly comprises a second heat flux sensor in the form of a thermoelectric generator, the first and second heat flux sensors having different thermal resistances determined by the configuration of the thermocouples.

Abstract: Aspects of the present disclosure provide methods, systems, devices, and apparatuses that, individually or in combination, permit determining core body temperature (CBT) of a subject.

Abstract: The present disclosure provides a core temperature sensing assembly for measuring a core temperature of an object when positioned on a surface of the object. The sensing assembly uses a heat flux sensor in the form of a thermoelectric generator. The thermoelectric generator is provided as part of an integrated circuit. Alternatively or additionally, the sensing assembly uses the thermoelectric generator to actively heat or cool the object. Alternatively or additionally, the sensing assembly comprises a second heat flux sensor in the form of a thermoelectric generator, the first and second heat flux sensors having different thermal resistances determined by the configuration of the thermocouples.

Abstract: A thermal cycle detector includes a first temperature reservoir, a second first temperature reservoir, first thermal barrier, and a plurality of first electrical conductors spanning the first thermal barrier. The first temperature reservoir includes a first transistor, and the second temperature reservoir includes a second transistor. The first thermal barrier is disposed between the first temperature reservoir and the second temperature reservoir. The plurality of first electrical conductors is configured to provide an electrical power source for the thermal cycle detector in response to a thermal gradient across the plurality of first electrical conductors.