摘要:
In order to determine a volume thermal expansion coefficient of a liquid, a sample of the liquid is placed inside a cell of a calorimeter followed by an incremental increase of pressure inside the cell containing the liquid. After each pressure increase heat flow into the cell and volume of the liquid are measured. Based on results of the measurements of the heat flow and accounting for initially evaluated cell volume, the volume thermal expansion of the liquid is determined.
摘要:
A method for evaluating a measurement result of a thermal analysis. A program-controlled computer unit is used to calculate at least one probability of the agreement of the measurement result with at least one dataset previously stored in the computer unit, wherein this calculation is based on a comparison of effect data previously extracted from a measurement curve of the thermal analysis with corresponding stored effect data of the dataset. The evaluation can advantageously include, an automatic recognition and classification of measurement curves and can be carried out in particular more efficiently, more economically and more quickly than previously, with at the same time a high quality of evaluation.
摘要:
An internal temperature measuring device is configured to include an acquisition unit that acquires a one side temperature and a one side heat flux of a measurement target on a one side surface side and an opposite side temperature and an opposite side heat flux of the measurement target on an opposite side surface side; and a computation unit that computes an internal temperature of the measurement target by applying the one side temperature, the one side heat flux, the opposite side temperature, and the opposite side heat flux.
摘要:
A thermal analysis step, a molecule ionization step and a molecular structure analysis step are executed in parallel to a temperature increasing step. In the molecule ionization step, component molecules contained in gas evolved from a sample S due to temperature increase are ionized, and in the molecular structure analysis step, any selected ion out of molecular ions obtained in the molecule ionization step is dissociated to generate fragment ions corresponding to the structural factors of the molecule, and the structure of the molecule is analyzed on the basis of the fragment ions.
摘要:
Sensor system with a sensor device having a through-flow cell for liquid, a detector device for measuring a property of the liquid in the through-flow cell and for generating an associated detector signal, a sensor control for analyzing the detector signal, wherein the sensor control detects a liquid transition between two different liquids in the through-flow cell when a change (per unit time) in the detector signal is greater than a threshold value. In the case of such a liquid transition detection, the sensor control generates an alarm signal. Liquid transition detection is carried out by optical, temperature and/or conductivity sensors.
摘要:
A test system and method for thermoelectric module. The test system includes an electrical performance test unit, a heat flux detection unit, and a processor. The electrical performance test unit connects with the thermoelectric module under power generation state to test output power of the thermoelectric module and working current and internal resistance under this output power. The heat flux detection unit includes a heat flux sensor installed at a cold-end of the thermoelectric module to detect the heat flux. The processor electrically connects with the electrical performance test unit and the heat flux detection unit to calculate the thermoelectric conversion efficiency η of thermoelectric module. By using the technical scheme of the invention, the detection of the thermoelectric conversion efficiency of the thermoelectric module is accomplished.
摘要:
The invention relates to a leak detector comprising a first sensor for detecting a gas component (helium) in a gas taken in. Because the sensor is susceptible to saturation or contamination, a second sensor is provided. The sensor is a thermal conductivity sensor. The thermal conductivity sensor has a lower detection sensitivity, yet, at a high concentration of the gas component, it does not risk being contaminated. The two sensors together allow for a large detection range, from extremely sensitive measurements to instances with high concentrations of the gas components as those which can occur with gross leaks.
摘要:
A method for detecting an enthalpy change includes providing a first mixture and a second mixture to a drop generator. The first mixture includes a ligand. The second mixture contains a target molecule. The method further includes generating a drop in the drop generator. The drop includes the target molecule, a temperature-sensitive reporter compound, and the ligand. The method also includes measuring a property of the temperature-sensitive reporter compound in the drop to determine an amount of enthalpy change that has occurred.
摘要:
A procedure for forecasting building energy consumption by evaluating performance of variable base degree and variable based enthalpy models. Dynamic weights are computed for the variable base degree and variable based enthalpy models and used in making future energy prediction based on weather forecast data. The weather forecast data may be corrected for bias. The variable base degree and variable based enthalpy models may be calibrated based on outlier removed historic energy consumption data and historic ambient air temperature data.
摘要:
The invention relates to a leak detector comprising a first sensor for detecting a gas component (helium) in a gas taken in. Because the sensor is susceptible to saturation or contamination, a second sensor is provided. The sensor is a thermal conductivity sensor. The thermal conductivity sensor has a lower detection sensitivity, yet, at a high concentration of the gas component, it does not risk being contaminated. The two sensors together allow for a large detection range, from extremely sensitive measurements to instances with high concentrations of the gas components as those which can occur with gross leaks.