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Electrobioimpedance Amplifier

Selectable signal conditioning—filter or transform data as it is being collected

Cascade up to 16 amplifer modules per MP Research System for multi-parameter or multi-subject studies

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Electrobioimpedance Amplifier
Part #: EBI100C

The EBI100C Electrobioimpedance Amplifier records the parameters associated with impedance cardiography, cardiac output measurements, thoracic impedance changes as a function of respiration or any kind of biological impedance monitoring.

The EBI100C measures both impedance magnitude and phase simultaneously. Impedance can be recorded at four different measurement frequencies, from 12.5 kHz to 100 kHz.

The EBI100C incorporates a precision high-frequency current source, which injects a very small (400 µA) current through the measurement tissue volume defined by the placement of a set of current source electrodes. A separate set of monitoring electrodes then measures the voltage developed across the tissue volume. Because the current is constant, the voltage measured is proportional to the characteristics of the biological impedance of the tissue volume.

The EBI100C  is part of a complete research system solution. This amplifier interfaces with an MP160/MP150 data acquisition and analysis platform and AcqKnowledge software, allowing advanced analysis for multiple applications, including ICG Analysis.

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MODULAR CONSTRUCTION

Amplifiers snap together for easy system configuration and re-configuration.

Intuitive, Elegant AcqKnowledge Software

Powerful automated analysis. Instantly & easily view, measure, analyze, transform, and report data.

Powerful MP160 Data Acquisition and Analysis System

Flexible, proven modular data acquisition and analysis system for life science research.

Electrobioimpedance Amplifier
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Part #: EBI100C
Categories: Amplifiers - Research
Subcategories: Bioimpedance - Research

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Output Channels
The CH SELECT switch has four bank settings, which assign EBI100C output (i.e., Magnitude or Phase) channels as follows:

BankMagnitude (MAG)Phase (PHS)
1Channel 1Channel 9
2Channel 2Channel 10
3Channel 3Channel 11
4Channel 4Channel 12

If a particular EBI100C output is not used, the respective assigned channel cannot be used for another modules output; simply do not record on the assigned but unwanted channel.

Possible Lead Configurations

Electrical bioimpedance setups for absolute or relative measurement

Suggested reading

Methodological Guidelines for Impedance Cardiography , PSYCHOPHYSIOLOGY, Vol. 27, No. 1

Yadollahi, Azadeh & Singh, B & Bradley, T. (2015). Investigating the Dynamics of Supine Fluid Redistribution Within Multiple Body Segments Between Men and Women. Annals of biomedical engineering. 43. 10.1007/s10439-015-1264-0.

  • This study used four EBI100C impedance measurement modules to measure fluid volume in various body segments; for each segment, two electrodes injected high frequency ([12.5–100] kHz), low amplitude (400 lA) current to the segment and two electrodes measured voltage to estimate bioelectrical impedance.

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