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Soft self-healing resistive-based sensors inspired by sensory transduction in biological systems Interuniversitair Micro-Electronica Centrum vzw Vrije Universiteit Brussel
Sensory receptors in biological systems are an essential part of natural organisms to perceive, understand and adapt to their environment and evaluate their internal state. They are interlinked with the senses of living or-ganisms and are an important tool for the survival and evolution of species. Researchers have implemented the biomimetic receptor approach into the development of artificial sensors, in an attempt to mimic the sensory ...
Low power wireless sensor network for structural health monitoring of buildings using MEMS strain sensors and accelerometers Universiteit Gent
Within the MEMSCON project, a wireless sensor network was developed for structural health monitoring of buildings to assess earthquake damage. The sensor modules use custom-developed capacitive MEMS strain and 3D acceleration sensors and a low power readout application-specific integrated circuit (ASIC). A low power network architecture was implemented on top of an 802.15.4 media access control (MAC) layer in the 900MHz band. A custom patch ...
From Surface Plasmon Resonance Based Sensors to Carbon Nanotube Based Sensors (Van oppervlakte plasmon resonantie gebaseerde sensoren tot koolstof nanobuis gebaseerde sensoren) KU Leuven
Next generation sensing devices require significant improvements to satisfy the needs of a wide variety of applications in terms of sensitivity, specificity, cost, compactness, reliability and capacity of real-time measurements. Between the various types of sensors that may offer such characteristics two are of particular interest: sensors based on surface plasmon resonance (SPR) and sensors based on carbon nanotubes (CNTs).The first part of ...
Active Self-Testing Noise Measurement Sensors for Large-Scale Environmental Sensor Networks Vrije Universiteit Brussel
Large-scale noise pollution sensor networks consist of hundreds of spatially distributed microphones that measure environmental noise. These networks provide historical and real-time environmental data to citizens and decision makers and are therefore a key technology to steer environmental policy. However, the high cost of certified environmental microphone sensors render large-scale environmental networks prohibitively expensive. Several ...
An Energy-Efficient Capacitance-Controlled Oscillator-based Sensor Interface for MEMS sensors KU Leuven
This paper presents the optimization and implementation of an area- and energy-efficient capacitance-controlled oscillator-based sensor interface, which outputs a period-modulated signal. This time-based output signal can easily be digitized with a reset counter, which benefits from firstorder quantization noise shaping and oversampling. The circuit is prototyped in 130-nm CMOS technology and takes only 0.05 mm2. The performance is validated ...
A new control structure to reduce time delay of tracking sensors by applying an angular position sensor KU Leuven
In this paper, a new tracking control structure is proposed to decrease the time-delay effect of tracking sensor. To achieve this purpose, an angular position sensor, which generally exists in tracking systems, is used together with the tracking sensor. Also, a compensator is designed and applied to a system with time-delay in order to obtain a behavior same as a system without time-delay. Relying only on tracking sensor may lead to reduce the ...
A novel PLL-based sensor interface for resistive pressure sensors KU Leuven
Due to the ongoing trend towards smaller technologies, time-/frequency-to-digital conversion is gaining popularity. It benefits from the improved timing resolution in new technologies whereas voltage processing suffers from reduced signal swing and non-idealities. In this work, a new PLL-architecture for digitization of sensor signals is described which fully exploits the benefits of frequency processing. Its working principle and relevance is ...
Development of Contactless Health Monitoring Sensors and Integration in Wireless Sensor Networks KU Leuven
Triggered by the increase of the elderly popula tion, various aspects of health monitoring are bei ng investigated by researchers worldwide. The earl ier approaches in health monitoring were based on devices attached to the patient&##39;s body in volving the use of wires that impose restrictions on patients and introducing discomfort. Altho ugh some of these devices are still used nowadays, wireless technologies are being intensi vely ...