Methods, systems, and apparatus, including computer programs encoded on a storage device, for using a drone to test monitoring system sensors. In one aspect, the drone perform operations that include navigating from a first location of a property towards a second location of the property, detecting a sensor that is installed at the property, interrupting, by the drone, navigation through the property from the first location of the property towards the second location of the property to initiate a test of the detected sensor and (ii) determining a sensor test type for the detected sensor, administering a sensor test to the detected sensor, wherein the sensor test is based on the determined sensor test type, evaluating results of the administered test, storing data describing the results of the administered test, and continuing navigation through the property towards the second location of the property or towards another location of the property.

A method and a calorimeter system for reducing error in a measured sample heat flow rate due to interpan heat exchange are described. The method includes sensing a heat flow rate to or from a sample container placed on a sample calorimeter unit in a single sample differential scanning calorimeter sensor and sensing a reference heat flow rate to or from a reference container placed on a reference calorimeter unit of the single sample differential scanning calorimeter sensor. The temperature of the sample container and the temperature of the reference container are also sensed. An interpan heat exchange between the sample container and the reference container is determined. A sample heat flow rate having reduced error is determined based on the sensed heat flow rate from the sample container and the determined interpan heat exchange rate.

An embodiment relates to a temperature sensor having a correction function and is able to reduce errors in measurement by the temperature sensor by calibrating a correlation between temperature and voltage.

An embodiment relates to a temperature sensor having a correction function and is able to reduce errors in measurement by the temperature sensor by calibrating a correlation between temperature and voltage.

Methods, systems, and apparatus, including computer programs encoded on a storage device, for using a drone to test monitoring system sensors. In one aspect, the drone perform operations that include navigating from a first location of a property towards a second location of the property, detecting a sensor that is installed at the property, interrupting, by the drone, navigation through the property from the first location of the property towards the second location of the property to initiate a test of the detected sensor and (ii) determining a sensor test type for the detected sensor, administering a sensor test to the detected sensor, wherein the sensor test is based on the determined sensor test type, evaluating results of the administered test, storing data describing the results of the administered test, and continuing navigation through the property towards the second location of the property or towards another location of the property.

Methods, systems, and apparatus, including computer programs encoded on a storage device, for using a drone to test monitoring system sensors. In one aspect, the drone perform operations that include navigating from a first location of a property towards a second location of the property, detecting a sensor that is installed at the property, interrupting, by the drone, navigation through the property from the first location of the property towards the second location of the property to initiate a test of the detected sensor and (ii) determining a sensor test type for the detected sensor, administering a sensor test to the detected sensor, wherein the sensor test is based on the determined sensor test type, evaluating results of the administered test, storing data describing the results of the administered test, and continuing navigation through the property towards the second location of the property or towards another location of the property.

A failure determination circuit includes a switching circuit that receives a signal including an output voltage from a temperature sensor and a first reference voltage and outputs the signal in a time division manner, an A/D conversion circuit that A/D converts an output of the switching circuit, and a first determination circuit, and the first determination circuit determines a failure of the temperature sensor based on a signal based on a first digital signal obtained by A/D converting an output voltage from the temperature sensor by the A/D conversion circuit, a signal based on a second digital signal obtained by A/D converting the first reference voltage by the A/D conversion circuit, and temperature characteristics data based on a change in characteristics of the temperature sensor due to temperature and a change in characteristics of the first reference voltage due to temperature.

A failure determination circuit includes a switching circuit that receives a signal including an output voltage from a temperature sensor and a first reference voltage and outputs the signal in a time division manner, an A/D conversion circuit that A/D converts an output of the switching circuit, and a first determination circuit, and the first determination circuit determines a failure of the temperature sensor based on a signal based on a first digital signal obtained by A/D converting an output voltage from the temperature sensor by the A/D conversion circuit, a signal based on a second digital signal obtained by A/D converting the first reference voltage by the A/D conversion circuit, and temperature characteristics data based on a change in characteristics of the temperature sensor due to temperature and a change in characteristics of the first reference voltage due to temperature.

A calibration device includes a tank, a propeller disposed within the tank, a motor coupled to the propeller, a processor coupled to the motor, and a memory. The memory stores instructions that, when executed by the processor, cause the motor to rotate at a specified speed based on input an indication of an actual speed of the motor. The memory may store instructions that cause the device to dynamically change the speed of the motor based on the viscosity of a fluid in the tank, which changes as the temperature of the fluid changes. In addition, the memory may store instructions that cause the device to determine whether the fluid in the tank is deteriorated, and to provide an operator alert in response to determining that the fluid is deteriorated.

A heater plate includes a sheet-like heating member that generates heat upon being energized, a protective film provided on the side of one major surface of the sheet-like heating member to protect the sheet-like heating member, an output circuit section provided on a surface of the protective film on the opposite side to the sheet-like heating member, and a protruding portion forming film provided between the protective film and the sheet-like heating member. The output circuit section has protruding portions formed to be capable of respectively abutting terminals of a heat flux sensor which is an inspection object. The protruding portion forming film has protrusions at positions corresponding to the protruding portions. The sheet-like heating member, the protective film, the output circuit section and the protruding portion forming film are integrally formed into one piece.