A liquid lens system includes a liquid lens and a heating device disposed in, on, or near the liquid lens. The liquid lens system can include a temperature sensor. The heating device can be responsive to a temperature signal generated by the temperature sensor. A camera module can include the liquid lens system. A method of operating a liquid lens includes detecting a temperature of the liquid lens and heating the liquid lens in response to the detected temperature. Various embodiments disclosed herein can reduce, impede, or prevent crosstalk between components of the liquid lens, or the effects thereof.

A closed-loop cooling system is internal to the enclosure of an induction drive system. Two inverter modules of the induction drive system each includes three insulated gate bipolar transistor (IGBT) modules for producing an AC output from a DC source, the AC output received by an induction coil for heating a metal.

A closed-loop cooling system is internal to the enclosure of an induction drive system. Two inverter modules of the induction drive system each includes three insulated gate bipolar transistor (IGBT) modules for producing an AC output from a DC source, the AC output received by an induction coil for heating a metal.

An induction drive system comprises an enclosure; a closed-loop cooling system internal to the enclosure; and two inverter modules that each includes three insulated gate bipolar transistor (IGBT) modules for producing an AC output from a DC source, the AC output received by an induction coil for heating a metal.

An induction drive system comprises an enclosure; a closed-loop cooling system internal to the enclosure; and two inverter modules that each includes three insulated gate bipolar transistor (IGBT) modules for producing an AC output from a DC source, the AC output received by an induction coil for heating a metal.

A liquid lens system includes a liquid lens and a heating device disposed in, on, or near the liquid lens. The liquid lens system can include a temperature sensor. The heating device can be responsive to a temperature signal generated by the temperature sensor. A camera module can include the liquid lens system. A method of operating a liquid lens includes detecting a temperature of the liquid lens and heating the liquid lens in response to the detected temperature. Various embodiments disclosed herein can reduce, impede, or prevent crosstalk between components of the liquid lens, or the effects thereof.

The invention relates to a method for determining and regulating the temperature of an article with inductive properties which is heated inductively by means of an induction device, wherein the induction device contains an induction coil, means for producing an induction resonant circuit and a support element arranged above the induction coil and having a first side, which acts as support face for the article, and a second side, which is directed towards the inductive coil. At least one temperature sensor is fitted to the second side. The resonant frequency of the induction resonant circuit is measured via detection means and the temperature of the article is calculated from the measured resonant frequency, wherein the resonant frequency is related to the temperature of the article by virtue of a mathematical function, and the function is determined by determining at least two absolute temperature calibration values of the article at respectively different resonant frequencies. The temperature calibration values are calculated from temperature measured values of the sensor.

The invention relates to a method for determining and regulating the temperature of an article with inductive properties which is heated inductively by means of an induction device, wherein the induction device contains an induction coil, means for producing an induction resonant circuit and a support element arranged above the induction coil and having a first side, which acts as support face for the article, and a second side, which is directed towards the inductive coil. At least one temperature sensor is fitted to the second side. The resonant frequency of the induction resonant circuit is measured via detection means and the temperature of the article is calculated from the measured resonant frequency, wherein the resonant frequency is related to the temperature of the article by virtue of a mathematical function, and the function is determined by determining at least two absolute temperature calibration values of the article at respectively different resonant frequencies. The temperature calibration values are calculated from temperature measured values of the sensor.

A method, performed by an aerosol-generating device, of determining a temperature model of a susceptor, includes applying a first signal having a first frequency to a coil of a heater so that an alternating magnetic field is generated, determining a first value of an electrical characteristic of a susceptor indicated by the first signal, applying a second signal having a second frequency to the coil of the heater so that an alternating magnetic field is generated, determining a second value of the electrical characteristic of the susceptor indicated by the second signal, and determining a first temperature model for the susceptor based on the first value and the second value, wherein the first temperature model may be a model used for determining a temperature of the susceptor based on the electrical characteristic of the susceptor.

A method, performed by an aerosol-generating device, of determining a temperature model of a susceptor, includes applying a first signal having a first frequency to a coil of a heater so that an alternating magnetic field is generated, determining a first value of an electrical characteristic of a susceptor indicated by the first signal, applying a second signal having a second frequency to the coil of the heater so that an alternating magnetic field is generated, determining a second value of the electrical characteristic of the susceptor indicated by the second signal, and determining a first temperature model for the susceptor based on the first value and the second value, wherein the first temperature model may be a model used for determining a temperature of the susceptor based on the electrical characteristic of the susceptor.