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Streptococcus agalactiae (Group B streptococcus) has emerged as an important pathogen that affects humans and animals, including aquatic species. S. agalactiae infections are becoming an increasing problem in aquaculture and have been reported worldwide in a variety of fish species, especially those living in warm water. Recently, a very serious infectious disease of unknown aetiology broke out in...
This paper presents a two-axis wireless accelerometer using bondwire inertial sensing without MEMS processing. The bondwire sensors are bonded chip-to-chip to reduce the manufacturing uncertainty. The accelerometer consists of oscillator-based inductance-to-frequency converters, a digital frequency demodulator, and a 400 MHz FSK wireless transmitter. A digitally programmable interface allows the digitalization...
This paper presents an accelerometer that utilizes standard IC bondwires as an inertial sensor, requiring no external components or MEMS processing. The readout circuitry is implemented in a standard 0.13 µm CMOS process and detects the change in mutual inductance caused by the relative deflection of adjacent bondwires. The accelerometer has a measured sensitivity of 10 kHz/g with a bandwidth of 700...
Advances in energy harvesting, low-power radios, and biometric sensing have enabled new applications in medical and scientific monitoring. In medicine, unobtrusive biosensors promise to wirelessly relay critical patient information including temperature, heart rate, or blood pressure. This paper describes key technologies needed to integrate complex, wirelessly-powered health monitors.
A multiphase VCO using differential active inductors is designed and fabricated in an IBM 0.13 um CMOS process. Using active inductors, the core VCO occupies 0.3times0.4 mm , and the central frequency can vary from 6 GHz to 11 GHz, exhibiting a 58% tunable frequency ranges. Exploiting current reuse, the phase noise is measured to be less than -95 dBc/Hz at 1 MHz offset with the measured power consumption...
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