A resonance device with improved precision of temperature control. The resonance device includes a platform; a resonator including a vibrator and one or more holding arms that connect the vibrator and the platform to each other such that a first groove is provided around the vibrator. Moreover, the resonance device includes a sensor with a measurement portion that measures temperature and a heater formed on the platform. A second groove is provided between the measurement portion and the heater.

Disclosed is an apparatus for determining the temperature, comprising a first temperature sensor, a second temperature sensor, and electronics which are configured to apply an electrical signal to the first temperature sensor and/or the second temperature sensor and to tap off at least one reception signal from the first temperature sensor and/or the second temperature sensor. The apparatus also comprises at least six connection lines for making electrical contact with the first temperature sensor and the second temperature sensor, wherein the connection lines are arranged and configured such that the first temperature sensor and the second temperature sensor are connected in series and can have the transmission signal applied thereto such that the first reception signal can be tapped off from the first temperature sensor and/or the second reception signal can be tapped off from the second temperature sensor.

Disclosed is an apparatus for determining the temperature, comprising a first temperature sensor, a second temperature sensor, and electronics which are configured to apply an electrical signal to the first temperature sensor and/or the second temperature sensor and to tap off at least one reception signal from the first temperature sensor and/or the second temperature sensor. The apparatus also comprises at least six connection lines for making electrical contact with the first temperature sensor and the second temperature sensor, wherein the connection lines are arranged and configured such that the first temperature sensor and the second temperature sensor are connected in series and can have the transmission signal applied thereto such that the first reception signal can be tapped off from the first temperature sensor and/or the second reception signal can be tapped off from the second temperature sensor.

A thermal sensor in some embodiments comprises two temperature-sensitive branches, each including a thermal-sensing device, such as one or more bipolar-junction transistors, and a current source for generating a current density in the thermal-sensing device to generate a temperature-dependent signal. The thermal sensor further includes a signal processor configured to multiply the temperature-dependent signal from the branches by respective and different gain factors, and combine the resultant signals to generate an output signal that is substantially proportional to the absolute temperature the thermal sensor is disposed at.

A thermal sensor in some embodiments comprises two temperature-sensitive branches, each including a thermal-sensing device, such as one or more bipolar-junction transistors, and a current source for generating a current density in the thermal-sensing device to generate a temperature-dependent signal. The thermal sensor further includes a signal processor configured to multiply the temperature-dependent signal from the branches by respective and different gain factors, and combine the resultant signals to generate an output signal that is substantially proportional to the absolute temperature the thermal sensor is disposed at.

Provided is an electroconductive film having a metal thin-film on a resin film base; and a temperature sensor film which is obtained by patterning the metal thin-film on the resin film base. An electroconductive film (101) which is used for the production of a temperature sensor film comprises a metal thin-film (10) on one principal surface of a resin film base (50), with a chromium oxide thin-film (21) serving as an underlying layer interposed therebetween. A temperature sensor film is obtained by patterning the metal thin-film so as to form a thermometric resistor part and a lead part that is connected to the thermometric resistor part.

Provided is an electroconductive film having a metal thin-film on a resin film base; and a temperature sensor film which is obtained by patterning the metal thin-film on the resin film base. An electroconductive film (101) which is used for the production of a temperature sensor film comprises a metal thin-film (10) on one principal surface of a resin film base (50), with a chromium oxide thin-film (21) serving as an underlying layer interposed therebetween. A temperature sensor film is obtained by patterning the metal thin-film so as to form a thermometric resistor part and a lead part that is connected to the thermometric resistor part.

Disclosed is a battery in-situ test system. The battery in-situ test system comprises a charging and discharging module, an environment module and a mechanical loading module, wherein a to-be-tested battery is electrically connected with the charging and discharging module, the environment module comprises a temperature control box, the to-be-tested battery, an optical imaging module, an infrared thermal imaging module and an ultrasonic scanning imaging module are arranged in the temperature control box. The test environment is simulated through the environment module, and the optical imaging module is used for observing the microscopic deformation or damage of the surface of the to-be-tested battery; the infrared thermal imaging module is used for identifying the temperature distortion point of the to-be-tested battery and observing the thermal runaway process of the to-be-tested battery; and the ultrasonic scanning imaging module is used for monitoring the damage, lithium separation and charge state of the to-be-tested battery.

Disclosed is a battery in-situ test system. The battery in-situ test system comprises a charging and discharging module, an environment module and a mechanical loading module, wherein a to-be-tested battery is electrically connected with the charging and discharging module, the environment module comprises a temperature control box, the to-be-tested battery, an optical imaging module, an infrared thermal imaging module and an ultrasonic scanning imaging module are arranged in the temperature control box. The test environment is simulated through the environment module, and the optical imaging module is used for observing the microscopic deformation or damage of the surface of the to-be-tested battery; the infrared thermal imaging module is used for identifying the temperature distortion point of the to-be-tested battery and observing the thermal runaway process of the to-be-tested battery; and the ultrasonic scanning imaging module is used for monitoring the damage, lithium separation and charge state of the to-be-tested battery.

A thermal sensor in some embodiments comprises two temperature-sensitive branches, each including a thermal-sensing device, such as one or more bipolar-junction transistors, and a current source for generating a current density in the thermal-sensing device to generate a temperature-dependent signal. The thermal sensor further includes a signal processor configured to multiply the temperature-dependent signal from the branches by respective and different gain factors, and combine the resultant signals to generate an output signal that is substantially proportional to the absolute temperature the thermal sensor is disposed at.