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 20 of 5865 for “"Sensors"”.
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Surface Optochemical Sensors
… research is to develop new surface optochemical sensors for studying cellular processes by investigating techniques to modify surface properties. The spectral characteristics of the modified surfaces and coatings are designed to show remarkable changes after interaction with analytes from …
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Third party reference sensors
… Controlant, the solution enables third party sensors to be integrated into Controlants calibration/validation solution as well as opening up possibilities for other measurement devices to be integrated easily into the system.
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Birefringent Fabry-Perot sensors
… infibre Fabry-Perot interferometric sensors for the measurement of temperature or strain. By using a highly birefringent optical fibre in their cavity, these sensors form two interferometers - one for each polarisation axis. As in the case of other fibre interferometers, each axial …
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Solid Electrolyte Oxygen Sensors
The relevant developments in: science, engineering, and technology; and their confluence at different times resulting in the concept, feasibility, and the emergence of the solid electrolyte oxygen sensor, are traced from the last century to the present time when a number of commercial devices are …
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Gas-sensitive holographic sensors
Holographic sensors are photonic layered structures contained in analyte sensitive lms that upon illumination produce monochromatic reflections (λ). The present work reports the fabrication of oxygen and ammonia sensors in Nafi on membranes and hydrocarbon and volatile organic compound sensors in …
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Deep penetration magnetoquasistatic sensors
… model-based spatially periodic quasistatic-field sensors. The research developed three significant improvements in the field of nondestructive evaluation. The impact of each is detailed below: 1. The design of a distributed current drive magneto resistive magnetometer that matches the model …
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Applications of Magnetoelectric Sensors
… I concentrate on application study for ME sensors with respect to noise control and rejection, thermal stability, triple-axis sensor design, array imaging, DC and AC magnetic sources detection and active mode ME sensor development, which is important for future ME sensor device applications.
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Sapphire optical fiber sensors
Fiber optic sensors offer many advantages over conventional sensors, including; small size, low weight, high strength and durability. Standard silica optical fibers are limited by the material properties of silica. Temperatures above 700°C and other harsh environments are incompatible with standard …
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Drones Detection Using Smart Sensors
<p>Drones are modern and sophisticated technology that have been used in numerous fields. Nowadays, many countries use them in exploration, reconnaissance operations, and espionage in military operations. Drones also have many uses that are not limited to only daily life. For example, drones are …
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Protein Sensors for Membrane Cholesterol
… interest, our understanding of how cholesterol sensors accurately measure cholesterol levels in membranes and how cholesterol is transferred between membranes remains limited. A recently discovered class of cholesterol-sensing bacterial toxins share the same specificity and sensitivity for …
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Development of novel optical sensors
A range of novel and innovative colourimetric optical indicators for commercially important analytes have been developed and characterised. Water-based colourimetric indicator films are shown to have increased operational lifetimes under ambient conditions compared to similar solvent-based …
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Innovative Plastic Optical Fiber Sensors
… the development of new types of fiber optic sensors for the measurement of mechanical quantities such as displacement, vibration and acceleration. Also, it describes the realization of specific acquisition systems designed to interrogate the developed sensors. Since optical fibers have been …
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Synthesis of Smart & Intelligent Sensors
L'abstract è presente nell'allegato / the abstract is in the attachment
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INFRARED SENSORS USING SILICON MICROSTRUCTURES
Interest in being able to see in the dark has spurred the exploration of infrared imaging systems. There are basically two groups of detectors: photon detectors and thermal detectors. The high costs of cooling apparatus and infrared ( lR ) sensitive materials restrict the wide application of the …
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Fluorescent sensors for metal ions
The considerable current interest in the use of fluorescent molecules in molecular recognition is not new, but is one that has increased in importance in recent years due to their applications in many fields including trace analysis in chemistry and biochemistry. Using the "dual fluorescence" …
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Transient response of temperature sensors
Transient of time constant 10 seconds will be within 2 % of its final value in 40· seconds. Cancelling this response and iritroducing one of time constant 1 second enables the 2 % band to be reached in just 5 seconds. It was also possible to correct transient responses made up of two exponentials …
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Interrogation of fibre optic sensors
… to investigate the interrogation of fibre optic sensors using "off the shelf optical components and equipment developed mainly for the telecommunications industry. This provides a cost effective way of bringing fibre optic sensor systems to within the price range of their electro-mechanical …
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Taxis as pervasive resilience sensors
This thesis proposes a method to quantitatively measure the resilience of transportation systems using GPS data from taxis. The granularity of the GPS data necessary for this analysis is relatively coarse; it only requires coordinates for the beginning and end of trips, the metered distance, and …
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Low noise cmos image sensors
… tend to interfere with workflow. CMOS image sensors have been explored as a solution because of their high performance, low noise and small footprint. Reducing the noise floor on CMOS image sensors makes it possible to develop a general image sensor that can be used for several low light …
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