Search results for "Digital potentiometer"

showing 2 items of 2 documents

Bio-impedance Imitator for Reography

2007

In this paper two electronic imitators of the bio-impedance - based on a digital analog converter and digital controlled potentiometer are discussed.

Digital analog converterPatient diagnosisbusiness.industryComputer scienceElectrical engineeringBio impedancePotentiometerbusinessDigital potentiometer2007 4th IEEE Workshop on Intelligent Data Acquisition and Advanced Computing Systems: Technology and Applications
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A novel technique for the CMRR improvement in a portable ECG system

2017

This paper presents a new technique to improve the quality of the ECG signals, increasing the Common Mode Rejection Ratio (CMRR). We developed a portable wireless Bluetooth ECG system able to acquire 12 leads, communicating with Smartphones and PCs. Many experiments have been made for measuring CMRR decay due to the difference on skin-electrodes impedances, the asymmetries of the amplifiers input stages and external components. Using some digital potentiometers, the system is able to compensate for these, increasing the CMRR of about 18 dB.

Portable Electronicsbusiness.industryComputer scienceECGAmplifierBioelectronicDigital potentiometerSettore ING-INF/01 - Elettronicalaw.inventionBluetoothProgrammable-gain amplifierCommon-mode rejection ratiolawElectronic engineeringWirelessCommon-mode signalEmbedded SystembusinessElectrical impedance
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