Results 21 to 30 of about 75,607 (300)

A CMRR enhancement circuit by employing auxiliary buffer of capacitively coupled instrumentation amplifier for neural signal recording

open access: yesElectronics 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
doaj   +1 more source

Current-Reused Current Feedback Instrumentation Amplifier for Low Power Leadless Pacemakers

open access: yesIEEE 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
doaj   +1 more source

Digital Signal Processing by Virtual Instrumentation of a MEMS Magnetic Field Sensor for Biomedical Applications

open access: yesSensors, 2013
We present a signal processing system with virtual instrumentation of a MEMS sensor to detect magnetic flux density for biomedical applications. This system consists of a magnetic field sensor, electronic components implemented on a printed circuit board
Héctor Vázquez-Leal   +7 more
doaj   +1 more source

An Artefact suppressing fast-recovery myoelectric amplifier [PDF]

open access: yes, 1999
An amplifier for recording myoelectric signals using surface electrodes has been developed. The special features are suppression of stimulation artefacts and motion artefacts from electrodes.
Thorsen, R.
core   +3 more sources

DESIGN AND DEVELOPMENT OF VIBROARTHOGRAM SCREENING DEVICE AND ASSESSMENT OF JOINT MOTION IN THE PURSUIT OF SIGNAL PROCESSING

open access: yesICTACT Journal on Image and Video Processing, 2021
Abnormal conditions in the knee joint are factors to lead changes in the vibroarthro graphic signal which represents the sound or vibration emitted from the joint during flexion or extension with suitable instrumentation these signals are to be acquired ...
R Praveena   +3 more
doaj   +1 more source

Low-cost electrochemical impedance spectroscopy system for corrosion monitoring of metallic antiquities and works of art [PDF]

open access: yes, 1999
Electrochemical impedance spectroscopy (EIS) is recognized to be a powerful and noninvasive technique to test the integrity of protective coatings on memorials, but commercial EIS systems are rather costly though versatile devices. This paper describes a
Angelini, Emma Paola Maria Virginia   +5 more
core   +1 more source

A Fully Differential Analog Front-End for Signal Processing from EMG Sensor in 28 nm FDSOI Technology

open access: yesSensors, 2023
This paper presents a novel analog front-end for EMG sensor signal processing powered by 1 V. Such a low supply voltage requires specific design steps enabled using the 28 nm fully depleted silicon on insulator (FDSOI) technology from STMicroelectronics.
Vilem Kledrowetz   +3 more
doaj   +1 more source

Optimization of MKID Noise Performance Via Readout Technique for Astronomical Applications [PDF]

open access: yes, 2010
Detectors employing superconducting microwave kinetic inductance detectors (MKIDs) can be read out by measuring changes in either the resonator frequency or dissipation. We will discuss the pros and cons of both methods, in particular, the readout method
Anastasios Vayonakisa   +22 more
core   +3 more sources

Analysis, Simulation, and Development of a Low-Cost Fully Active-Electrode Bioimpedance Measurement Module

open access: yesTechnologies, 2021
A low-cost 1 kHz–400 kHz operating frequency fully-active electrode bioimpedance measurement module, based on Howland current source, is presented in this paper.
Christos Dimas   +5 more
doaj   +1 more source

Electronically Tunable Transimpedance Instrumentation Amplifier Based on OTRA

open access: yesJournal of Engineering, 2013
Operational transresistance amplifier (OTRA) is the most suitable analog building block (ABB) for transimpedance type signal processing due to its very nature of current input and voltage output.
Rajeshwari Pandey   +2 more
doaj   +1 more source

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