Data Acquisition Systems
Data Acquisition Systems

Author: Maurizio Di Paolo Emilio

Publisher: Springer Science & Business Media

Published: 2013-03-21

Total Pages: 150

ISBN-13: 1461442141

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This book describes the fundamentals of data acquisition systems, how they enable users to sample signals that measure real physical conditions and convert the resulting samples into digital, numeric values that can be analyzed by a computer. The author takes a problem-solving approach to data acquisition, providing the tools engineers need to use the concepts introduced. Coverage includes sensors that convert physical parameters to electrical signals, signal conditioning circuitry to convert sensor signals into a form that can be converted to digital values and analog-to-digital converters, which convert conditioned sensor signals to digital values. Readers will benefit from the hands-on approach, culminating with data acquisition projects, including hardware and software needed to build data acquisition systems.

Data Acquisition
Data Acquisition

Author:

Publisher: BoD – Books on Demand

Published: 2021-03-17

Total Pages: 118

ISBN-13: 1839680369

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Recent advances in sensor design, embedded systems, and communication networks allow us to collect valuable biomedical data effectively. The new biomedical data acquisition systems make significant contributions to life quality as well as support healthcare and diagnostic procedures. This book presents several innovative applications of data acquisition technology for monitoring patient activity, assisted living, diagnosing osteoarthritis, recognizing disorders of the cardiovascular system, and designing prostheses for amputees.

Data Acquisition and Processing
Data Acquisition and Processing

Author: Kurt Enslein

Publisher: Elsevier

Published: 2013-10-22

Total Pages: 382

ISBN-13: 1483164810

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Data Acquisition and Processing: In Biology and Medicine, Volume 2 records the proceedings of the 1962 Rochester Conference on Data Acquisition and Processing in Biology and Medicine. The conference explores the utilization, viability, and implication of electronic data processing in the field of bio-medicine. The compendium encompasses the developments in electronic data processing in relation to its wide application to medicine and life sciences. The conference is organized so that experts in the various fields of medicine and biology, along with computer science and systems experts, present and develop ideas, technologies, and methods they can effectively use in their line of work. The conference devotes sessions to discuss relevant topics in medical research and analysis; research and development of medical information retrieval projects; digital and analog computation considerations for biomedical problems; and the use of statistical decision functions in medical diagnosis. The book will be interesting to physicians, medical researchers, computer and systems experts, specialists in the life sciences, and workers in the pharmaceutical industry.

A Multi-User Biomedical Laboratory Data Acquisition System
A Multi-User Biomedical Laboratory Data Acquisition System

Author: John L. Szurek

Publisher:

Published: 1975

Total Pages: 6

ISBN-13:

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A unique multi-user computer system for data acquisition and experimental. control is now in use at the US Army Research Institute of Environmental Medicine at Natick, MA. Based on a 32K PDP-11/40 which is running the multi-task executive RSX-11M, the system provides real-time data acquisition and control for several independent biomedical experiments simultaneously. The system handles analog I/O (64 channels in, 10 out) through the LPS 11, switch closure input, relay closure output, parallel binary or BCD I/O (DR 11 interface) and TTY I/O (DL 11 interface). Analog and digital signals are carried to and from approximately 20 laboratories in the building via cables of 11-pair individually shielded wire. Instrumentation amplifier modules (Analog Devices AD610J) preceded by passive filter networks are used at the computer end to isolate and filter each analog input channel at a cost of approximately $50/channel. Applications which have been developed include: analysis of myocardial constractility, breath-by-breath respiratory parameter evaluation, temperature (skin and rectal) measurement and digitizing of miscellaneous graphical data. No automatic control is presently being done, but on-line manual control is being done based on data fed back to the labs in the real time from the computer.

Biomedical Data Acquisition Systems Based on Sigma-Delta Analogue-to-Digital Converters
Biomedical Data Acquisition Systems Based on Sigma-Delta Analogue-to-Digital Converters

Author:

Publisher:

Published: 2001

Total Pages: 0

ISBN-13:

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The high resolution of recent sigma-delta analog-to-digital converters (ADCs) has made possible the direct acquisition of a wide range of biomedical data. Such ADCs allows creating universal systems for medical research and for clinical practice. The performance of biomedical data acquisition systems is generally limited by the precision of the digital input data, which is achieved at the interface between analog and digital signals. The recent developments in digital VLSI technologies provide the practical means to implement the Sigma-Delta analog-to-digital converters (ADCs). The increasing use of digital techniques in biomedical data acquisition systems also has contributed to the recent interest in cost-effective, high precision ADCs. Sigma-delta modulation based on analog-to-digital conversion technology is a cost-effective alternative for high resolution (greater than 14 bits) converts, which can be ultimately integrated on digital signal processor ICs. This study details the use of sigma-delta ADCs in acquiring signals from electrocardiograms and electroencephalograms. ADC and software specifications for ECG and EEG signal processing are provided. A table presents frequency range, dynamic range, and comments on signal processing for electroretinogram, electrooculogram, EEG, visual evoked potentials, surface EMG, and ECG. (1 table, 3 figures, 5 refs.).

Analog-and-Algorithm-Assisted Ultra-low Power Biosignal Acquisition Systems
Analog-and-Algorithm-Assisted Ultra-low Power Biosignal Acquisition Systems

Author: Venkata Rajesh Pamula

Publisher: Springer

Published: 2019-01-02

Total Pages: 114

ISBN-13: 3030058700

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This book discusses the design and implementation aspects of ultra-low power biosignal acquisition platforms that exploit analog-assisted and algorithmic approaches for power savings.The authors describe an approach referred to as “analog-and-algorithm-assisted” signal processing.This enables significant power consumption reductions by implementing low power biosignal acquisition systems, leveraging analog preprocessing and algorithmic approaches to reduce the data rate very early in the signal processing chain.They demonstrate savings for wearable sensor networks (WSN) and body area networks (BAN), in the sensors’ stimulation power consumption, as well in the power consumption of the digital signal processing and the radio link. Two specific implementations, an adaptive sampling electrocardiogram (ECG) acquisition and a compressive sampling (CS) photoplethysmogram (PPG) acquisition system, are demonstrated. First book to present the so called, “analog-and-algorithm-assisted” approaches for ultra-low power biosignal acquisition and processing platforms; Covers the recent trend of “beyond Nyquist rate” signal acquisition and processing in detail, including adaptive sampling and compressive sampling paradigms; Includes chapters on compressed domain feature extraction, as well as acquisition of photoplethysmogram, an emerging optical sensing modality, including compressive sampling based PPG readout with embedded feature extraction; Discusses emerging trends in sensor fusion for improving the signal integrity, as well as lowering the power consumption of biosignal acquisition systems.