Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 15 of 15 for “"Temperature Controller"”.
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An investigation into the design of a self adaptive digital temperature controller for industrial furnace control
… in order to achieve a greater degree of temperature control in a range of furnaces which are normally used for the heat treatment of metals. In this investigation the author has limited his work to two furnaces, a medium sized furnace and a small sized furnace. It is argued that the …
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Integration Of Real-Time Experiments With Internet Access
… this thesis project. They are Automatic Mixing Controller, The Digital Storage Oscilloscope from Gould Instruments, Temperature Controller and an Electronic Recording Rain/Precipitation Gauge. These four instruments are connected and communicated from the main computer by external Data …
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Modeling and Control of Plate Mill Processes
… namely the plate thickness control and the slab temperature control. The classical solution for the thickness control problem can't handle asymmetric hardness variations and the estimation of the controlled output introduces stability problems. A nonlinear multivariable model for the thickness …
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Development of a heating stage for an optical trapping microscope
… of cellular molecules take place at room temperature. Experiments with these molecules have the potential to yield more information about biological systems were these experiments performed at the temperature at which the molecules naturally operate. Since the microscopes in the laboratory …
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Thermal Vacuum Chamber Refurbishment and Analysis
… environment. Each spacecraft has an operating temperature that is specified in the mission requirements. The requirement stems from internal component operating temperatures that are critical to mission success. Prior to placing the spacecraft in orbit, engineers must be sure that the …
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Visualizing Real Time Vasomotion in vivo Using Optical Coherence Tomography.
… dynamical aspects of vasomotion, in response to temperature change, by using a Melcor Thermoelectric Temperature Controller (MTTC) to produce local heating in conjunction with Spectral Radar Optical Coherence Tomography (SROCT).
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Development of a control system for gas concentration and temperature in an animal preference chamber
… used for animal behavior testing. A fuzzy logic controller (FLC) was designed and built to control distinct ammonia concentration levels independently in each of the EPC’s four compartments. The FLC was written in MATLAB and utilized in tandem with custom software created in a visual-based …
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An Improved Mathematical Model to Simulate the Stock in Pulse Fired Reheating Furnaces
… to develop mathematical models to simulate the temperature performance of furnaces.<br/><br/>The zone method can provide an accurate calculation of the radiation exchanges, which are the main mode of heat transfer in the furnace. The zone method solves the radiant heat exchanges in the enclosure …
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Embedded Sensing System for Whispering-Gallery-Mode Optical Resonators
… integrates a tunable laser, a current source, a temperature controller, a function generator, an oscilloscope, a photodiode detector, a testing computer with customized testing software, and a packaged WGM sensor into a phone-sized embedded system. Second, we deploy the WGM sensor in the Internet …
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A personal thermophoretic sampler for airborne nanoparticles
… samples aerosol by producing a 1000 °C cm ' temperature gradient between two aluminum plates (0.1 cm separation distance) using a resistive heater, a thermoelectric cooler, a temperature controller, and two thermistor sensors. The collection efficiency was evaluated for 15, 51, 100, and 240 …
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Non-silicon Microfabricated Nanostructured Chemical Sensors For Electric Nose Application
… issues like sensitivity, selectivity, stability, temperature influence, humidity influence, thermal characterization, drifting problem etc. of SMO gas sensors have been intensively investigated. A novel approach to improve temperature stability of SMO (including tin oxide) gas sensors by applying …
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Feedforward temperature control using a heat flux microsensor
… to provide the input for a feedforward temperature control loop is investigated. The feedforward loop is added to proportional and integral feedback control to increase the speed of the response to a disturbance. Comparison is made between the feedback and the feedback plus feedforward …
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Equation-oriented modeling, simulation, and optimization of integrated and intensified process and energy systems
… first concept is a latent energy storage-based temperature controller, where a phase change material is confined within the walls of an autothermal reactor to improve local temperature control. The second concept is a segmented catalyst layer which modulates the rate of heat generation and …
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Time-resolved heat transfer measurements and analysis in the wake region of a cylinder in crossflow
… The thin-film gage was maintained at a constant temperature by a constant temperature anemometer unit. A temperature controller actively matched the surrounding cylinder surface to the gage temperature to maintain a constant temperature boundary condition. The frequency response of the thin-film …
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Learning based algorithms for temperature control and fouling prediction in heat-exchangers
… class of problems pertaining to heat-exchangers: temperature control and fouling resistance modeling and prediction. Designing robust and accurate temperature controllers for heat exchangers is very challenging primarily because of complexities associated with the synthesis of dynamics of …