Searched for: subject:"Sigma%5C+Delta"
(1 - 16 of 16)
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Baladari, N. (author)
The functioning of the brain depends on the interplay between a large number of neurons. To understand the information processing in neuronal networks, we need tools to record the electrical activity of cells at high resolution. Microelectrode arrays (MEAs) are predominantly used to measure neuronal activity<br/>at high spatial and temporal...
master thesis 2020
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Zhan, Xin (author)
This thesis presents the design and implementation of a low power 3rd-order loop filter and a low power, compact, high-speed inverter-based amplifier designed in 28nm HPC for a GHz sampling Σ∆ modulator.<br/>In the earlier design, the size of the pMOS in an inverter was found to be nine times larger than the nMOS which is not practical to obtain a...
master thesis 2018
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van der Kruijt, Arjan (author)
This work describes a low-power and low-cost alternative to mechanical wind sensors, suitable for volume production in standard CMOS processes. The CMOS wind sensor operates in the electro-thermal domain; therefore, it has no moving parts and therefore requires very little maintenance. Moreover, the CMOS wind sensor is an active sensor, compared...
master thesis 2018
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Loopik, Leon (author)
This thesis presents the design and testing of a multi-path analog-to-digital converter for current sensing in battery management systems. The specifications of this converter are (1) continuously integrate and convert a signal at 125 Hz with a resolution of 20 bit and (2) perform on demand fast conversions of 20 μs at a resolution of 14 bit....
master thesis 2017
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Kostałkowski, M.K. (author)
Every year number of prematurely born infants grows. Most underdeveloped organ after birth is brain. Therefore its monitoring is very important, especially as it can provide indications about health state in a future, both short and long term. Non invasive method of brain monitoring is EEG recording. However tedious process of system set up and...
master thesis 2016
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Angevare, J.A. (author)
A highly digital temperature sensor, based on the thermal diffusivity of silicon, for thermal management applications has been reported. Recently, Thermal-Diffusivity based temperature sensors have undergone a radical change from an analog-based readout architecture to a more digital VCO-based one. However the more digital approach led to...
master thesis 2015
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Radeljic-Jakic, N. (author)
Distance measurement using ultrasonic waves is employed in a wide range of industrial applications. In this thesis our main goal is to investigate the possibility of processing ultrasonic signals with a ??-modulator and to process its bitstream output signal with the cross-correlation technique, while being independent of the transducer that is...
master thesis 2015
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Chen, P. (author)
The technology scaling favors the Digital PLLs, which is reconfigurable. In the traditional fractional-N ADPLL, whether counter-based or divider based, DCO and TDC are the main two power consuming blocks. Modifying the phase detection part based on phase prediction makes the architecture more energy-efficient. The new architecture leads to the...
master thesis 2014
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Wu, J. (author)
Wind sensors are widely used in many critical applications, such as navigation, weather forecast, aerospace and wind energy assessment. The thermal wind sensor can measure wind speed and direction at the same time, by measuring the temperature gradient on the sensor’s surface which is induced by the wind flow. Compared to traditional mechanical...
master thesis 2013
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Souri, K. (author)
master thesis 2013
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Yao, Q. (author)
Low noise image sensors can see images by just a few photons have a wide application in both the scientific and economic fields. This thesis presents a design of a 16*16 pixels CMOS image sensor with a target noise level in the order of 0.5 electrons RMS in 0.18?m technology, which has a potential to catch a large amount of low light imaging...
master thesis 2013
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Kamath, U.R. (author)
Glucose sensors are useful for monitoring and control of blood-sugar concentration for diabetic patients. There are many challenges in their wide-spread use and effectiveness in control of the disease. This work is a step towards achieving in vivo continuous long-term glucose monitoring using the optical near-infrared based glucose sensing...
master thesis 2012
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Kalgi, A.K. (author)
master thesis 2012
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Mohan, R. (author)
Cardiovascular diseases are leading cause of deaths worldwide. With increasing graying population and limited health infrastructure there is a need for portable and implantable ECG devices to diagnose these diseases early on. In general an ECG device requires three or more electrodes, which need to be applied to the body via a gel, to obtain a...
master thesis 2011
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Singh, G. (author)
Bridge sensors are widely used for accurate measurement of physical quantities such as temperature, pressure, strain or altitude. Such sensors require a low-noise, high-resolution and accurate readout system with high input impedance. In order to meet these requirements, conventional sensor readout systems use multiple stages which typically...
master thesis 2011
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Sarhangnejad, N. (author)
In this thesis, the development and implementation of a high-precision Sigma-Delta modulator is described. The objective of this thesis was to investigate the possibility of merging a current mode feedback instrumentation amplifier with the following analog-to-digital converter into one sigma-delta modulator. For this purpose, a continuous-time...
master thesis 2010
Searched for: subject:"Sigma%5C+Delta"
(1 - 16 of 16)