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During cycling, the measurement of forces exerted on the pedal is used to monitor the level of training and to maximize the efficiency of pedaling. In rehabilitation, the force measurement can be used to monitor the functional recovery of a patient during a therapy. In these situations, it is useful to quantify with high resolution these variables. In this work a solution to remove the DC offset at...
The live demonstration of the modular medical instrumentation platform consists of two parts: A disassembled prototype device giving an insight in the modular design of the presented hardware and a demonstration of a sample system for ECG and pulse oximetry acquisition.
High-throughput and highly multiplexed DNA detection platforms require complex and generally bulky instrumentation to perform sensing, signal conditioning and quantification. Integrated CMOS biosensor arrays (CMOS biochips) have the ability to miniaturize such platforms into portable and low cost point-of-care (PoC) devices, that can be instrumental for the adoption of genomics test in molecular diagnostics...
Although lock-in detection is a well consolidated sensing technique, state-of-the-art commercial lock-in amplifiers do not allow reaching ppm resolution on long time scales due to low-frequency noise. We present a custom, multichannel platform that provides 0.7 ppm resolution, dedicated to pathogen DNA detection by means of Magnetic Tunnel Junction magneto-resistive sensors. A double modulation architecture...
Surgeon's adverse events may cause severe complications for patients; they are usually caused by the incorrect use of advanced instrumentation, poor training and surgeon fatigue. To avoid them, it is important to evaluate surgeon major variables like: real-time decision making, complex instrument control, manual dexterity, hand-eye coordination and fatigue. In order to provide a more objective assessment...
In this paper, we present an instrumentation amplifier for high speed electrical impedance tomography. The instrumentation amplifier includes a fast acting automatic gain control, which allows it to process a wide dynamic range of input signals with low power consumption and without sacrificing the frame rate of the tomography system. The instrumentation amplifier was designed in a 3.3 V, 180 nm CMOS...
An ultra low power low noise analog front-end for ECG signal acquisition is demonstrated. Key to its performance is a multi-frequency chopping technique that helps to significantly reduce power consumption by frequency-division multiplexing of two channels in a single low noise instrumentation amplifier. A complete two-channel analog front-end, chopped at frequencies of 4 kHz and 8 kHz, is implemented...
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