A calibration method of a temperature sensor is provided. The temperature sensor having a current source and a ring oscillator generating a square pulse signal with a temperature-dependent square pulse frequency. The acquisition of a first square pulse frequency measurement at a first temperature from the square pulse signal forms a first measurement point. A second square pulse frequency measurement at a second temperature from the second square pulse signal forms a second measurement point. The determination of the relation data being representative of an affine relation between square pulse frequency measurements and temperatures. The affine relation being defined by a used proportionality coefficient modified with respect to a measured proportionality coefficient of a measured affine relation linking the first measurement point and the second measurement point.

A flow guiding and heat dissipating type dry block temperature calibrator, which belongs to the temperature calibration field. The temperature calibrator includes a furnace body located in a housing and at least one air flow generating device. The air flow generating device is on one side or at the periphery of the furnace body, and is one or a combination of a gas passage, a flow guiding fan, an air pump and a blower. The air flow generated by the air flow generating device is blown toward a handle of a device being tested that is inserted in the furnace body, such that the handle is cooled, thereby preventing the sensor inside the handle from failing due to high temperature, facilitating the heat dissipation of the internal electronic components of the instrument itself, and extending the service life of the temperature calibrator.

The present invention discloses a method for regulating temperature in a temperature calibrator, taking into account also a velocity of the change of the temperature. The characterizing features are the steps of calculating a rate of change of the actual temperature of the temperature calibrator by a derivator, which derivator takes the measured temperature, PV.sub.T, by the temperature sensor as its input, and letting a user to specify a maximum rate of change for the temperature, as an input value for the processor; and regulating the temperature of the temperature calibrator by the processor so that the maximum rate of change for the temperature is never exceeded, and so that during temperature regulation, when the temperature error signal decreases as a function of time, also the rate of change of the actual temperature is set to decrease as a function of time.

A method for identifying the probe abnormality includes: obtaining current temperature data of a plurality of probes, and calculating a temperature difference value between every two pieces of current temperature data; comparing the temperature difference value with a preset temperature difference, and when the temperature difference value exceeds the preset temperature difference, determining that at least one of the plurality of probes is abnormal; and heating the device to a preset temperature, and determining an abnormal probe from the plurality of probes.

A temperature measurement system and a temperature measurement method are provided. The system includes a temperature sensor, a distance sensor, an image sensor, and a processor. The image sensor is configured to obtain an environmental image of a measurement environment. The processor is configured to perform an object detection on the environmental image to obtain a calibration target. The distance sensor is configured to obtain a position information of the calibration target. The temperature sensor is configured to obtain a target temperature information of the calibration target and an environmental temperature of the measurement environment. The processor obtains a calibrated target temperature information of the calibration target according to the position information of the calibration target, the target temperature information of the calibration target, and the environmental temperature of the measurement environment.

A method for calibrating a short temperature measuring device using a dry body temperature calibrator; wherein a heat soaking block is placed in the furnace of the dry body temperature calibrator, and two temperature measuring holes are in the heat soaking block, the bottom of the furnace includes a temperature control element. This method includes electrically connecting the first standard temperature sensor to the temperature control element through the measuring module and the control module sequentially to form a closed-loop for temperature feedback control, accurately controlling the temperature of the temperature measuring hole, and calculating the temperature difference between the temperature sensor to be calibrated and the standard temperature sensor in the two temperature measuring holes respectively. Thus quick calculation for the actual temperature of the temperature measuring device to be calibrated and quick calibration for the accuracy of the temperature measuring device to be calibrated can be achieved.

The present invention relates to integrated circuits. More specifically, embodiments of the present invention provide methods and systems for determining temperatures of an integrated circuit using an one-point calibration technique, where temperature is determined by a single temperature measurement and calculation using known electrical characteristics of the integrated circuit.

Devices, methods, and systems for testing a heat detector of a self-testing hazard sensing device are described herein. One device includes a heat detector, and a controller configured to provide energy to the heat detector to heat the heat detector to a threshold temperature, determine an amount of time it takes for the heat detector to heat to the threshold temperature, determine whether the amount of time it takes for the heat detector to heat to the threshold temperature meets or exceeds a threshold amount of time, and determine whether the heat detector is functioning properly based on whether the amount of time it takes for the heat detector to heat to the threshold temperature meets or exceeds the threshold amount of time.

A calorimeter board is provided for power calibration of a laser emission. The board includes a flat metal plate, a sinuous groove and a resistance temperature detector wire. The flat metal plate has obverse and reverse surfaces separated by a thickness. The groove is cut into the reverse surface and penetrates to a depth being part of the thickness. The wire is disposed within the groove at the depth. The wire connects to an instrument that measures electrical resistance responsive to the laser emission on the obverse surface.

Devices, systems and methods for using system-level malfunction indicators to monitor the operation and resiliency of the autonomous driving system components are described. One example of a method for diagnosing a fault in a component of an autonomous vehicle includes receiving, from an electrical sub-component of the component, an electrical signal, receiving, from an electronic sub-component of the component, a message, and determining, based on the electrical signal and the message, an operational status of the component.