Design of a module for bipolar vessel sealing: The conversion of Electrosurgical to Advanced bipolar power for Low- and Middle-income countries

According to recent survey [1], about 6 billion people live in Low-and-Middle Income Countries (LMICs) who do not have proper access to safe surgical care. There are several reasons behind this, such as lack of funding to the healthcare department, below par maintenance of the available devices, poor infrastructure and most importantly high cost...

A load-modulation digital data link for miniature ultrasound probes

Miniature ultrasound probes, such as intravascular ultrasound (IVUS) probes, are valuable diagnostic tools and provide image guidance during minimallyinvasive interventions. As more ultrasound transducer elements are built into such probes to improve image quality and frame rate, it becomes increasingly difficult to accommodate the cables needed...

A porous silicon carbide ammonia sensor

Large scale industries like automobile, agriculture and poultry etc.. are in the need of a reliable technology for gas sensors. Till date various types of sensors have been developed for gas applications but the SiC gas sensing has been a recent trend. With increase study in MEMS technology, the SiC material is gaining importance for sensor...

Determining Fatigue through Real-Time Sweat Analysis

At present, commercially available wearable sensors are only capable of tracking an individual’s physical activities and vital signs (such as heart rate). However, these devices fail to provide insight into fatigue itself. Fatigue is a broad term with many meanings. Fatigue in this paper refers to physiological changes where the muscle becomes...

Design and Fabrication of on-chip Midinfrared Emitter and LVOF

In this thesis,two essential parts of microspectrometer are designed, fabricated and measured. They are a hot wire of polysilicon with constant temperature profile that used as the IR light source, and the LVOF which is aimed at IR spectral range. In order to have the desired IR source, the hot wire should have temperature distribution as...

Motion artefact reference sensor study for ECG signals

ECG signals captured almost always have motion artefact noise. This noise arises due to relative motion between the ECG electrode and skin. To remove this noise a reference signal is required that correlates to the noise. This thesis presents the design and test results of a prototype system that incorporates various motion sensors into an ECG...

A new experimental approach to investigate the physics-of-failure of wirebond interconnects

Wirebonding is an interconnection technology used to connect a chip to its LED package. It is currently not well understood which wirebond characteristics are best to tailor to prevent the failure of wirebonds. The focus of this thesis is to understand the physics-of-failure of wirebonds via an experimental approach. Therefore, an experimental...

Energy Harvesting From A Piezoelectric Source To Power A Wireless System

Batteries are vital sources in many wireless embedded systems applications like the Tire Pressure Management System (TPMS) in the automobile industry. Also, the growth of electric cars will result in an increasing demand for batteries. Although batteries do not directly pollute the environment during their active life, the production phase and...

Microstructure for Mid-Infrared Spectroscopy for Biofuel Composition Measurement

Biofuel sensors for measuring the ethanol and gasoline concentrations in bio-ethanol blends, have been studied worldwide and currently used in engine management in FlexFuel cars fabricated by amongst others, Ford Motor Company. However, water that results from ethanol sugar cane is inevitable present in the ethanol blend and requires a sensor...