Results 11 to 20 of about 2,687 (171)
A High-Performance System for Weak ECG Real-Time Detection [PDF]
SensorsWearable devices have been widely used for the home monitoring of physical activities and healthcare conditions, among which ambulatory electrocardiogram (ECG) stands out for the diagnostic cardiovascular information it contains.
Kun Xu +4 more
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Float solenoid balun for MRI. [PDF]
NMR BiomedThis paper introduces the innovative float solenoid balun, based on the renowned solenoid cable trap, and conducts a comparative analysis with the widely used float bazooka balun. Abstract Baluns are crucial in MRI RF coils, essential for minimizing common‐mode currents, maintaining signal‐to‐noise ratio, and ensuring patient safety.
Lu M, Yang Y, Chai S, Yan X.
europepmc +2 more sources
Reproducible and highly miniaturized bazooka RF Balun using a printed capacitor. [PDF]
Magn Reson MedAbstract Purpose There is currently a strong trend in developing RF coils that are high‐density, lightweight, and highly flexible. In addition to the resonator structure of the RF coil itself, the balun or cable trap circuit serves as another essential element in the functionality and sensitivity of RF coils.
Lu M, Yang Y, Chai S, Yan X.
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Low Noise Balanced Homodyne Detector for Quantum Noise Measurement
IEEE Access, 2022 The research of quantum noise in the interaction of laser and atoms plays a critical role in quantum optical experiments. The measurement of quantum noise is mainly based on the balanced homodyne detection method.
Shubo Lang +4 more
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Electronics Letters, 2021 Here, a common‐mode rejection ratio (CMRR) enhancement circuit is proposed by employing an auxiliary buffer (AB) to the pseudo resistors of the capacitively coupled instrumentation amplifier (CCIA).
Longbin Zhu +4 more
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SN Applied Sciences, 2022 This study presents a high common-mode rejection ratio (CMRR), and high power-supply rejection ratio (PSRR) current-mode instrumentation amplifier (CMIA) to overcome the limitations of existing differential voltage second-generation current conveyors ...
S. Ahmadi +5 more
semanticscholar +1 more source
A Broadband, High Common-Mode Rejection Ratio Instrumentation Amplifier
2021 Asia-Pacific International Symposium on Electromagnetic Compatibility (APEMC), 2021 An operational amplifier based instrumentation amplifier (IA) with a common-mode rejection ratio (CMRR) independent of resistance tolerances is presented in this paper. The CMRR is determined by the operational amplifier characteristics.
M.J. van der Horst
semanticscholar +1 more source
A Novel Differential to Single-Ended Converter for Ultra-Low-Voltage Inverter-Based OTAs
IEEE Access, 2022 For the design of inverter-based OTAs with differential input and single-ended output, the differential to single-ended (D2S) converter is a key building block. In fact, the performance of the D2S strongly affects the overall common-mode rejection ratio (
Riccardo Della Sala +2 more
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Current-Reused Current Feedback Instrumentation Amplifier for Low Power Leadless Pacemakers
IEEE Access, 2021 This paper proposes a cardiac electrogram acquisition and stimulation integrated circuit (IC) for single-chamber leadless pacemaker applications. The proposed IC features self-determining pacing by acquiring an intracardiac electrogram without an ...
Gyuri Choi +7 more
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Lumped element balanced multi-band bandstop filter for ultra high frequency applications
The Journal of Engineering, 2020 An ultra-compact multi-band balanced (differential) bandstop filter (BSF) topology with all lumped elements has been introduced for the first time in this study.
Dubari Borah, Thottam S. Kalkur
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