A thermometer includes a temperature sensor, a controller configured to receive a signal from the temperature sensor, and an output configured to display a temperature determined by the controller from the signal.

An environment sensor includes a heat generation component, a first sensor and a second sensor disposed such that conductive heat resistances between the first sensor and the heat generation component and between the second sensor and the heat generation component are different from each other, and a controller. The first sensor and the second sensor are capable of measuring a predetermined physical quantity. The first sensor and the second sensor obtain a measured value from the predetermined physical quantity. The measured value fluctuates depending on ambient temperature. The controller is configured to correct the measurement value of one of the first sensor and the second sensor based on the measurement value of the first sensor and the measurement value of the second sensor when the predetermined physical quantity is measured.

An environment sensor includes a heat generation component, a first sensor and a second sensor disposed such that conductive heat resistances between the first sensor and the heat generation component and between the second sensor and the heat generation component are different from each other, and a controller. The first sensor and the second sensor are capable of measuring a predetermined physical quantity. The first sensor and the second sensor obtain a measured value from the predetermined physical quantity. The measured value fluctuates depending on ambient temperature. The controller is configured to correct the measurement value of one of the first sensor and the second sensor based on the measurement value of the first sensor and the measurement value of the second sensor when the predetermined physical quantity is measured.

In a portable electronic device, a temperature sensor is provided for sensing an ambient temperature of the portable electronic device. At least one other temperature sensor is provided for sensing a temperature inside the portable electronic device. The portable electronic device further comprises a set of components radiating heat in an active state in response to the consumption of electrical energy. A calibration module is adapted to conduct a calibration measurement during or in connection with an active state of at least a first component out of the set, and is adapted to determine a set of calibration parameters in response to the calibration measurement for adjusting the at least one sensed inside temperature. A compensator is provided for determining a compensated ambient temperature dependent on at least the sensed ambient temperature and the at least one adjusted sensed inside temperature.

In a portable electronic device, a temperature sensor is provided for sensing an ambient temperature of the portable electronic device. At least one other temperature sensor is provided for sensing a temperature inside the portable electronic device. The portable electronic device further comprises a set of components radiating heat in an active state in response to the consumption of electrical energy. A calibration module is adapted to conduct a calibration measurement during or in connection with an active state of at least a first component out of the set, and is adapted to determine a set of calibration parameters in response to the calibration measurement for adjusting the at least one sensed inside temperature. A compensator is provided for determining a compensated ambient temperature dependent on at least the sensed ambient temperature and the at least one adjusted sensed inside temperature.

An exemplary microelectromechanical device includes a MEMS layer, portions of which respond to an external force in order to measure the external force. A substrate layer is located below the MEMS layer and an anchor couples the substrate layer and MEMS layer to each other. A plurality of temperature sensors are located within the substrate layer to identify a temperature gradient being experienced by the MEMS device. Compensation is performed or operations of the MEMS device are modified based on temperature gradient.

An exemplary microelectromechanical device includes a MEMS layer, portions of which respond to an external force in order to measure the external force. A substrate layer is located below the MEMS layer and an anchor couples the substrate layer and MEMS layer to each other. A plurality of temperature sensors are located within the substrate layer to identify a temperature gradient being experienced by the MEMS device. Compensation is performed or operations of the MEMS device are modified based on temperature gradient.

An electric-wire protection device that protects an electric wire by cutting off power to the wire when its temperature is elevated above a predetermined value is presented. The device includes switching means to control the conduction of power to the wire, current measuring means to measure a current in the wire, environment temperature detecting means to detect a temperature of the environment surrounding the wire, electric-wire temperature calculating means to calculate the temperature of the wire using the value of the current in the wire and the environment temperature, limiting means to stop the conduction of power to the wire when the temperature is greater than or equal to a predetermined value, peripheral component current measuring means to measure the current flowing to a component at the periphery of the environment temperature detecting means, thermal influence acquisition means to obtains an amount of temperature increase caused by the component at the environment temperature detecting means, and environment temperature correcting means to correct the environment temperature based on the amount of temperature increase.

An electric-wire protection device that protects an electric wire by cutting off power to the wire when its temperature is elevated above a predetermined value is presented. The device includes switching means to control the conduction of power to the wire, current measuring means to measure a current in the wire, environment temperature detecting means to detect a temperature of the environment surrounding the wire, electric-wire temperature calculating means to calculate the temperature of the wire using the value of the current in the wire and the environment temperature, limiting means to stop the conduction of power to the wire when the temperature is greater than or equal to a predetermined value, peripheral component current measuring means to measure the current flowing to a component at the periphery of the environment temperature detecting means, thermal influence acquisition means to obtains an amount of temperature increase caused by the component at the environment temperature detecting means, and environment temperature correcting means to correct the environment temperature based on the amount of temperature increase.

Described are methods and systems using optical fiber interferometry to sense interference causing events in a region of interest and differentiate between a strain event and a thermal event. Other methods and systems relate to the use of optical fiber interferometry for determining temperature offset in a region of interest and using the determined temperature offset for determining temperature in the region of interest.