Temperature measurement systems (20) include a temperature sensor (22) and an electronic signal interrogator (24). The temperature sensor (22) has a transponder (26) equipped with an antenna (28), and a separate parasitic antenna (32) with a temperature-sensitive transducer (34, 68-74, 78a-84a), while the interrogator (24) has a transmitter (42) and antenna (40). The sensor (22) is designed to be placed in thermal contact with an object to be temperature-measured, with the interrogator (24) placed in proximity to the object. The systems (20) may be used with food servingware domes (88, 114), which can be preheated and placed over a food-bearing plate to maintain the temperature of the food.

Temperature measurement systems (20) include a temperature sensor (22) and an electronic signal interrogator (24). The temperature sensor (22) has a transponder (26) equipped with an antenna (28), and a separate parasitic antenna (32) with a temperature-sensitive transducer (34, 68-74, 78a-84a), while the interrogator (24) has a transmitter (42) and antenna (40). The sensor (22) is designed to be placed in thermal contact with an object to be temperature-measured, with the interrogator (24) placed in proximity to the object. The systems (20) may be used with food servingware domes (88, 114), which can be preheated and placed over a food-bearing plate to maintain the temperature of the food.

The present disclosure relates to a method and apparatus for in-situ calibration and/or validation of a thermometer having a temperature sensor and a reference element composed at least partially of a material that undergoes a phase transformation at a phase transformation temperature, wherein the material remains in the solid phase in the phase transformation, the method including detecting and/or registering a measured value from the temperature sensor; detecting and/or registering a reference variable of the reference element; detecting the occurrence of the phase transformation based on a change of the reference variable; ascertaining a phase transformation time at which the phase transformation occurs; determining a sensor temperature using the temperature sensor at a measurement time that has the shortest time separation from the phase transformation time; and comparing the sensor temperature with the phase transformation temperature and/or determining a difference between the sensor temperature and the phase transformation temperature.

The present disclosure relates to a method and apparatus for in-situ calibration and/or validation of a thermometer having a temperature sensor and a reference element composed at least partially of a material that undergoes a phase transformation at a phase transformation temperature, wherein the material remains in the solid phase in the phase transformation, the method including detecting and/or registering a measured value from the temperature sensor; detecting and/or registering a reference variable of the reference element; detecting the occurrence of the phase transformation based on a change of the reference variable; ascertaining a phase transformation time at which the phase transformation occurs; determining a sensor temperature using the temperature sensor at a measurement time that has the shortest time separation from the phase transformation time; and comparing the sensor temperature with the phase transformation temperature and/or determining a difference between the sensor temperature and the phase transformation temperature.

The apparatus comprises a case, a magnetic member which is provided at a bottom surface of the case and attaches the case to the outer surface of the cooking vessel by forming an attractive force with respect to the outer surface of the cooking vessel, first and second temperature sensors which are disposed at the bottom surface of the case while being spaced a predetermined distance apart from each other in the vertical direction, and measure temperatures of two measurement points located at the outer surface of the cooking vessel and spaced the predetermined distance apart from each other in the vertical direction, respectively and a controller which is provided in the case and estimates the temperature of the food based on an average value of the temperatures measured respectively by the first and second temperature sensors and a desired temperature value provided by a user.

A magnet temperature information output device is disposed on a rotating electrical machine including a stator and a rotor with a permanent magnet, and is arranged to output temperature information regarding a temperature of the permanent magnet. The magnet temperature information output device includes an element arranged to detect a magnetic flux and output an electrical signal responding to the detected magnetic flux as the temperature information. The element is disposed on the stator.

A magnet temperature information output device is disposed on a rotating electrical machine including a stator and a rotor with a permanent magnet, and is arranged to output temperature information regarding a temperature of the permanent magnet. The magnet temperature information output device includes an element arranged to detect a magnetic flux and output an electrical signal responding to the detected magnetic flux as the temperature information. The element is disposed on the stator.

The present disclosure relates to a circuitry and a method for detecting a temperature of a wireless charging coil, and a storage medium. The circuitry includes: a target resistor, a voltage supply circuit, a voltage detection circuit, and a processing component. The voltage supply circuit is configured to apply a target voltage to the series circuit. The voltage detection circuit is configured to obtain a first measured voltage across two ends of the wireless charging coil and a second measured voltage across two ends of the target resistor. The processing component is configured to: determine a working current of the series circuit based on the second measured voltage and a resistance of the target resistor; determine a real-time resistance of the wireless charging coil based on the first measured voltage and the working current; determine a real-time temperature of the wireless charging coil based on the real-time resistance.

The invention relates to a passive pressure sensor (501) for being introduced into the circulatory system of a human being and for being wirelessly read out by an outside reading system. The pressure sensor comprises a casing (502) with a diffusion blocking layer for maintaining a predetermined pressure within the casing and a magneto-mechanical oscillator with a magnetic object (508) providing a permanent magnetic moment. The magneto-mechanical oscillator transduces an external magnetic or electromagnetic excitation field into a mechanical oscillation of the magnetic object, wherein at least a part of the casing is flexible for allowing to transduce external pressure changes into changes of the mechanical oscillation of the magnetic object. The pressure sensor can be very small and nevertheless provide high quality pressure sensing.

The invention relates to a passive pressure sensor (501) for being introduced into the circulatory system of a human being and for being wirelessly read out by an outside reading system. The pressure sensor comprises a casing (502) with a diffusion blocking layer for maintaining a predetermined pressure within the casing and a magneto-mechanical oscillator with a magnetic object (508) providing a permanent magnetic moment. The magneto-mechanical oscillator transduces an external magnetic or electromagnetic excitation field into a mechanical oscillation of the magnetic object, wherein at least a part of the casing is flexible for allowing to transduce external pressure changes into changes of the mechanical oscillation of the magnetic object. The pressure sensor can be very small and nevertheless provide high quality pressure sensing.