Abstract:
A pressure cell includes a metal pressure chamber, a heating stage, disposed in the interior of the metal pressure chamber, that heats the liquid sample, a chamber pump, connected to the interior of the metal pressure chamber, that pressurizes the interior of the metal pressure chamber, a salinity control system including a membrane coupled to the sample inlet, where the membrane is configured to reduce a salinity level of the liquid sample, and a controller that controls the chamber pump, the salinity control system, and the heating stage to control a pressure of the interior of the metal pressure chamber, a salinity level of the liquid sample, and a temperature of the liquid sample, respectively. The metal pressure chamber includes a liquid sample holder, a removable lid, a window in the removable lid, a sample inlet, and a sample outlet.
Abstract:
A device for air conduction heating, which includes: a heating conduit, a temperature detection module and a main control module. An inner cavity of the heating conduit is provided with a separation screen, the separation screen is configured to divide the inner cavity into a smoke chamber and a heating chamber in which a heating device is provided. The temperature detection module includes a first temperature sensor arranged on the smoke chamber and a second temperature sensor arranged on the separation screen. The main control module is electrically connected to the heating device and the temperature detection module respectively, and is configured to adjust a working power of the heating device according to a relationship between a preset temperature threshold temperature and a detection temperature collected by the temperature detection module. The detection temperature includes a temperature of the smoke chamber and a heating temperature.
Abstract:
A plurality of temperature adjusters each independently include a control loop. A manipulated variable calculator is configured to give manipulated variables to the respective temperature adjusters and includes a reference model output generator configured to provide a reference model as a response output for reaching a temperature setpoint when a first control loop having a slowest response speed among the control loops is defined to have a 100% manipulated variable. The reference model output generator includes: a simulator configured to determine a manipulated variable pattern by conducting successive search of a switching time; and a reference model obtained from a response in which, among the plurality of control loops, the first control loop having the slowest response speed is defined to have the 100% manipulated variable, and the rest of the plurality of control loops are controlled to follow the first control loop.
Abstract:
The invention relates to a thermostat valve for a cooling system of an internal combustion engine with a coolant stoppage function, comprising a first bypass valve element and a second bypass valve element, a main valve element to be arranged in a counterpart to a connection to a coolant radiator, and a crossmember to be arranged between an engine outlet and an engine inlet, which crossmember forms a valve seat for the first bypass valve element and the second bypass valve element, wherein, on its outer side, the crossmember has a collar which forms an axial supporting region for the counterpart and which is loaded in the axial direction by a compression spring, with the result that the collar is forced in the direction of the counterpart.
Abstract:
A wearable device that warms or cools to notify a user wearing the device is provided. The wearable device includes: a plurality of individual heating and/or cooling spots, a plurality of dots pulsating in heating/cooling sections, and/or a plurality of dots moving around in heating/cooling sections. A system is also provided comprising a wearable device, a scheduling device, and a communication between the wearable device and the scheduling device.
Abstract:
A temperature regulating apparatus includes a heat exchanger and regulates a temperature of a first medium by performing heat exchange between the first medium and a second medium via the heat exchanger. A regulating operation unit generates a flow rate regulating signal so that the temperature of the first medium flowing out from a primary side outlet of the heat exchanger becomes equal to a target temperature. A control valve regulates a flow rate of the second medium based on the flow rate regulating signal. A correcting operation unit (a) calculates, based on temperatures detected by first, second, third and fourth temperature sensors, a heat exchange amount of the heat exchanger, a logarithmic mean temperature difference or an average temperature in the heat exchanger, and the flow rate of the second medium, (b) calculates an overall heat transfer coefficient of the heat exchanger based on the calculated heat exchange amount and the calculated logarithmic mean temperature difference or the calculated average temperature, and the flow rate of the second medium, (c) obtains a ratio (ΔG) of a change (Q2-Q′2) in the heat exchange amount to a change (ΔF2) in the flow rate of the second medium based on the calculated flow rate (F2) of the second medium and the calculated overall heat transfer coefficient (K), and (d) corrects a gain of the regulating operation unit based on the obtained ratio.
Abstract:
Disclosed is an temperature control apparatus including: a resistance heater a resistance value of which changes dependently on a temperature thereof; a fixed resistance connected to the resistance heater in series; a signal generator to output a control signal which has two voltage levels of a first voltage and a second voltage; a switching section to flow a current through the resistance heater and the fixed resistance when the voltage level is the first voltage, and not to flow a current through the resistance heater and the fixed resistance when the voltage level is the second voltage; and a first voltage measuring instrument to measure a voltage value across the fixed resistance at the time when the current flows through the fixed resistance, wherein the signal generator controls the temperature of the resistance heater based on the measured voltage by the first voltage measuring instrument.
Abstract:
A method for providing control signals to a fan in a computer system is described. During the method, an electronic device receives temperature measurements and a fan-speed measurement performed in the computer system. Using a pattern-recognition model, the electronic device validates the measurements, and excludes any inaccurate measurements, such as those associated with drifting or failed sensors. Next, the electronic device determines control signals for a fan in the computer system using a model of coolant flow in the computer system and/or a slope of a phase-frequency curve of a cross power spectral density function corresponding to a pair of temperature profiles measured, as a function of time, by a pair of thermal sensors. Then, the determined control signals are provided to the fan.
Abstract:
A liquid warming device for heating sterile fluids in a removable basin is described with emphasis on the properties of the basin interaction with the liquid warming device and with a drape that works with the basin to maintain a sterile field above the drape and the top of the basin. Also disclosed are various desirable aspects for a control system for a liquid warming device.
Abstract:
A multiple heater control system includes cables, connectors, and junction boxes for user-friendly daisy chain connections of heater controllers and heaters in various configurations or combinations of individually controlled heater series and/or master and slave heater series. The heater controllers include process control of AC power to the heaters and upper-limit safety shutoff that is substantially independent from the process control. The heater controllers also have variable levels of control, adjustment, display, and communications functionality in a base module that is expandable to various levels with expansion modules that are attachable to and detachable from the base module. Connector, cable, and junction configurations, adapters, and latch features enhance user friendliness.