A sealed enclosure power control system for controlling power to an electrical component within an enclosure. The sealed enclosure power control system generally includes an electrical component within the sealed enclosure, a first connector on the sealed enclosure adapted to provide a sealed electrical interface to the electrical component. The first connector has at least one first connector conductor element, and the system further includes a battery within the sealed enclosure, and the system also has a second connector, wherein when the first connector and the second connector are connected together, electrical power from the battery is applied to the electrical component, and when the first connector and the second connector are not connected together, the electrical power is not applied to the electrical component.

A remote detection and reporting of fluid properties device. A float has a sensor array for detecting at least one property of a fluid and transmitting the fluid properties. The float has at least one side arm and at least one lower arm for detection of fluid properties, where the lower arm has a ballast and a gas bladder for orienting and stabilizing the float. The float, the side arms, and the lower arm are made of a thermally conductive plastic and coated with a thermochromic compound optimized for visually reporting the temperature of a fluid via change in color.

In a different embodiment of the float has an electronic sensor array detects multiple properties of a fluid. The float has an electronic transmitter, a battery, and a wire harness, and floats in a fluid. The device transmits the fluid properties to a remote receiver.

Embodiments are directed to a system for aiding with the control of cooking. The system includes a thermometer probe that has an emitter, a controller unit or CPU, a battery power supply, and a thermally conductive shaft with a temperature sensor. The thermally conductive shaft is positioned in the interior of a heated milieu (e.g. a food item). The thermally conductive shaft includes a tip at a first end, and an end fitting at a second end. The battery and controller unit are positioned in the thermally conductive shaft, along with the temperature sensor, which is in thermal contact with the thermally conductive shaft. The end fitting is hollow such that the end fitting houses the emitter and a second temperature sensor. Other embodiments are directed to a method for computing a temperature variation speed from a temperature difference inside the end fitting.

A system for measuring temperature in a sterilization autoclave, including a temperature transducer positionable inside a sterilization chamber of the autoclave and a receiver positionable outside the sterilization chamber. The receiver includes a reception antenna and a receiving electronic circuit connectable with a process controller of the autoclave. The receiving electronic circuit is configured to receive a temperature signal through the reception antenna, provide a control signal as a function of the temperature signal, and transmit the control signal to the process controller. The temperature transducer includes a hermetically closable transducer housing, temperature probes, a transmission antenna, an electronic transduction circuit, and a primary battery. The reception antenna of the receiving device is configured to transmit signals at two or more different frequencies.

An overheat detection system and insulation muff comprising an overheat detection system. The overheat detection system comprises a thermometer, a thermal harvesting module comprising at least one passive radiator, the thermal harvesting module being able to generate electrical energy from the thermal difference between two elements, and a digital module, comprising a power management system, a data treatment system and a wireless transmission system, wherein the electrical energy generated by the thermal harvesting module powers the thermometer and the digital module.

A system for remotely retrieving sensed conditions at one or more building components. The building components are remote or numerous so that a wireless collection of the sensed conditions provides a significant benefit to a builder or building operator. A remote transceiver sends a wireless signal to a building component. The building component includes an onboard transceiver. At least some of the energy from the transmitted wireless signal is received by the onboard transceiver, sent to a storage device, and stored therein. The stored energy is used to operate a sensor for sensing an onboard condition. The onboard condition is then wirelessly transmitted by the onboard transceiver back to the remote transceiver to be displayed.

A piston assembly for monitoring at least one operating condition of an internal combustion engine and/or piston during use of the piston in the engine, for example during an engine test, is provided. The piston assembly includes an electronic instrumentation unit coupled to the piston for collecting data related to the operating conditions. Instead of a battery or wireless power transfer system, the piston assembly includes a thermoelectric module to provide energy to the electronic instrumentation unit. One side of the thermoelectric module is coupled to an undercrown surface of the piston, which is typically hot due its proximity to the combustion chamber. The opposite side of the thermoelectric module is cooled by a cooling fluid, such as a spray of cooling oil. The temperature flux at the thermoelectric module is converted into electrical energy and used to power the electronic instrumentation unit.

A temperature probe includes: an antenna, a coupling element, a radio frequency identification (RFID) chip and a temperature measuring circuit. The antenna is connected to a capacitor in the coupling element to form a resonant loop, and is configured to sense an electromagnetic wave emitted by a reader and a store harvested energy in the capacitor to supply power to the RFID chip. The RFID chip is connected to the antenna and the coupling element, and is configured to send stored electronic tag information to the reader via the antenna. The temperature measuring circuit is connected to the RFID chip, and is configured to detect temperature information of an object and to send the temperature information to the reader via the antenna. Also provided is a temperature measuring device. The temperature probe and the temperature measuring device do not require a battery, are small-sized, and have a long service life.

A wireless temperature-measurement system comprising (a) one or more temperature probes each including one or more energy-storage capacitors which supply the electrical energy for operation of the probe(s) and (b) a probe-charging station having circuitry configured to supply electric charge to the energy-storage capacitors prior to the temperature probes being positioned to measure temperature.

The present invention concerns a method for determining the junction temperature of a power semiconductor using a temperature sensitive electrical parameter of a thermal sensitive electrical device in a system comprising the thermal sensitive electrical device, an external electrical circuit, a compensation module and a measurement module. The compensation module is composed at least of a first and a second switches. The invention: puts the first switch in a closing state and puts the second switch in an opening state during a first period of time in order to measure a first set of voltages, changes the state of the first switch and/or the state of the second switch or the state of at least one another switch during at least one another period of time in order to measure at least one another voltage, determines a value of the temperature sensitive parameter using the measured voltages.