BIOPAC® Systems, Inc. Logo

ECG artifact in EMG Signal

The best solution is to avoid the ECG artifact in the first place.  The problem is typically solved by adjusting the placement of the electrodes. Place the EMG electrodes so that they are NOT aligned with the axis of electrical activity of the heart.  Placing both EMG electrodes (Vin+ and Vin- ) on the same side of the body will help.
 
ECG artifact can be removed from EMG data that has been recorded by applying a 50Hz High pass FIR filter.  The number of coefficients should be greater than or equal to two times the sampling rate, divided by the lowest cutoff frequency specified.  For example, if running a low pass filter at 1Hz on data sampled at 100Hz, choose at least (2 X 100/1) or 200 coefficients in the filter. Additional coefficients will improve the response.  Use a number four times higher.

Associated Applications

Associated Application Notes

Associated Disciplines

Spotlight On
Mobita wearable 32-channel EEG

Mobita 32-Channel Wireless EEG System

This Mobita wearable physiological signal amplifier system records 32 channels of high-fidelity wireless EEG data with water electrodes. The system includes: Mobita base unit with onboard 3D accelerometer & trigger channel ConfiCap™ configured for 32-Channel EEG Headcap with 32 grommets for Water Based Electrodes Water Based Electrodes AcqKnowledge software This Mobita® System is uniquely suited to record wireless EEG for a variety of applications, such as […]

View All
Latest News

BIOPAC Ranked #1 for Physiology Experiments by HAPS Members

The Human Anatomy & Physiology Society (HAPS) found that BIOPAC’s Student Lab System (BSL) and AcqKnowledge software were the number one ranked data acquisition and analysis systems for physiology experiments performed in introductory A&P labs. According to HAPS surveys conducted in 2013 and 2016, BIOPAC products are used and preferred by members in more labs than […]

Integrating Eye Tracking Data with Neuromarketing Parameters

Hardware and software packages from BIOPAC allow commercial consumer marketing teams to easily combine precise eye tracking data with physiological data recording. Here are a few notable studies recording physiology with eye tracking data: Predicting Advertising Success: While neurophysiological methods have become increasingly popular to better understand marketing phenomena among academics and practitioners, the success of […]

Read All
Request a Demonstration
Request a Demonstration