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 16 of 16 for “"Temperature-compensated"”.
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100 MHZ temperature compensated RC oscillator
Submission published under a 24 month embargo labeled 'Closed Access', the embargo will last until 2023-12-01
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A temperature-compensated RC oscillator using temperature sensor
… This thesis introduces a practice of utilizing a temperature sensor to compensate for an RC oscillator based on FLL (frequency-locked loop), on the same die of the temperature sensor, with the assistance of a frequency counter and a computer. The TCO (temperature-compensated oscillator) and the …
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Development of a Miniature, Fiber-optic Temperature Compensated Pressure Sensor
… The measurement of physical parameters (such as temperature and pressure) in extremely harsh environment is one of the most intriguing challenges of this field, and is highly valued in the automobile industry, aerospace research, industrial process monitoring, etc. [2]. Although the semiconductor …
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REALIZATION OF TEMPERATURE COMPENSATED ALUMINUM NITRIDE MICRORESONATOR FILTERS WITH BANDWIDTHS BEYOND kt2 LIMIT
… technologies available for realizing miniature, temperature compensated RF filters with fractional bandwidths of ~1%. This presentation will cover the development of miniature filters based on temperature compensated aluminum nitride microresonators that have fractional bandwidths exceeding the …
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Hot-thermistor spirometry for the artificial ventilation of infants
… and clinical applications are discussed. A new temperature-compensated hot-thermistor anemometer/spirometer was developed because the wide variety of spirometers described previously for-measuring respiratory volumes •and volume flow rates were unsatisfactory for routine use in monitoring infant …
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Ring oscillators for high performance clock synthesis and sensor interfaces
… for ROs, namely, wireline clock generation, temperature-compensated references, and sensor interfaces. We start by focusing on RO-based clock generation where the phase noise is degraded due to jitter accumulation. We present a synthesizer architecture that uses a low-noise passive multiphase …
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Web-based computer simulation of lead-acid batteries
… nominal voltage, current draw, cycle time, and temperature. Outputs include charge voltage for float and cyclic applications, open circuit voltage as a function of depth of discharge, temperature compensated capacity, mass estimated, and an upper and lower boundary limit on the cyclic life of …
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RF breakdown effects in microwave power amplifiers
… the surprising role of impact ionization at low temperatures in DC off-state breakdown, as well as the apparent prevalence of on-state breakdown under RF drive. DC characterization shows that breakdown walkout and recovery both proceed more quickly at higher temperatures, and also shows that …
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A needle-tip embedded fibre optical force sensor for tissue identification
… to the surgical needle. In this research, a temperature-compensated fibre optical tip force sensor based on the Fabry-Perot Interference (FPI) principle is developed and embedded into the tip of surgical needles. This was designed for tissue identification which it fulfilled via analysing the …
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Modeling of Circadian Rhythms: Robust Temperature Compensation in Drosophila melanogaster and Testable Hypotheses in Neurospora crassa
… biological clock, and that the clock is temperature compensated. However, the molecular mechanism of circadian rhythms began to come clear only after the discovery of the period (per) gene in Drosophila melanogaster in 1971, and the frequency (frq) gene in Neurospora crassa in 1973. Since …
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Mathematical Modeling of Circadian Rhythms in Drosophila melanogaster
… and behavior to the daily cycle of light and temperature imposed by the rotation of the earth. Circadian derives from the Latin word circa "about" and dies "day". Circadian rhythms have three noteworthy properties. They are endogenous, that is, they persist in the absence of external cues (in …
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Design Technique for Analog Temperature Compensation of Crystal Oscillators
… the stability of a crystal oscillator with temperature variations of the environment. They are temperature control and temperature compensation. Temperature control involves placing the sensitive components of an oscillator in a temperature stable chamber. Usually referred to as an …
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Effective modeling of advanced filters and multiplexing networks
… a large frequency range. As demonstrated with a temperature compensated Ku-band multiplexer and a high power dielectric resonator filter, both in-band response and out-of-band spurious mode behavior of channel filters are captured in the hybrid models. In the second modeling method, the entire …
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High Performance RF Circuit Design: High Temperature, Ultra-Low Phase Noise, and Low Complexity
… in three aspects of the circuit design. High temperature and temperature compensated transmitter design, ultra-low phase noise signal generators, and compact and low complexity polar transmitter design. Increase in the ambient temperature can impact the performance of the entire communication …
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Elastic wave tailoring at the macro/micro/nano- scales using intentional strongly nonlinear coupling
… such as filters, frequency synthesizers, and temperature-compensated MEMS resonators. We consider two linear nanophononic waveguides connected by strongly nonlinear couplings. The band structures are highly tunable, and, either the nonlinear coupling, or the linear waveguides can introduce the …
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Toward realizing power scalable and energy proportional high-speed wireline links
… tions of the MDLL based approach. Proposed temperature compensated LC-PLL achieves power-on-lock in 1ns. The fifth and biggest contribution of this dissertation is the design of a 7Gb/s embedded clock transceiver, which achieves rapid-on/off capability in LC-PLL, current-mode transmit- ter …