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EMG EOG ECG Sensor Card (Muscle, Eye and Heart Signals Detection)
MaM Sense allows developers to process three different types of signals, EOG, EKG, and EMG, with a single board. Each of the three signals is measured as the desired mode for the selected signal, via a three-way switch. Then, the board is connected to an analog-to-digital converter to obtain output and process digital signals. The sensor can also be used as an Arduino. The Nano expansion board provides power to both itself and the Arduino Nano through a common DC jack, while it outputs the signal to the A7 port of the Arduino as the Arduino Nano sensor is attached on top. Arduino codes developed by engineers have also been shared to assist developers.
Bioelectric signals are the total electrical current produced by electric current on tissue, organs, or cells. Although biopotentials can vary depending on the tissue and organs they originate from, they typically have common signal characteristics such as low amplitude (10 μV-10 mV) and low frequency (0-200 Hz). Special electrodes and electronic systems are used to obtain these signals for clinical purposes. The systems used in this field are usually named after the target organ (Electrocardiography, Electroencephalography, etc.). Electrodes, amplifiers, signal adapters, and signal display devices are used to measure these low-amplitude potentials. Surface electrodes that stick to the skin are widely used as electrodes (EOG, EMG, EKG) because they do not cause damage to tissues. Sometimes it may be necessary to use needle electrodes for more local measurements. There are recording problems at every stage since the signals being measured are very small. Problems such as skin conductivity, body movement, electrode noise, interference from the grid, electromagnetic wave interactions, etc. further degrade the quality of the already small signal. In principle, it is possible to measure biopotentials in every tissue, but currently the most commonly performed EKG, EMG, and EOG recordings are performed for diagnostic purposes. EOG is a method of recording the electric potential between the cornea and retina with the help of electrodes placed around the eyes. The EOG signal amplitude is 0.05-3.5 mV and its frequency is 1-10 Hz. Electromyography (EMG) is a technique used to evaluate and record the electrical activity produced by skeletal muscles. The EMG signal amplitude is 1-10 mV and its frequency is 0-500 Hz. Electrocardiography (EKG) is a method used to measure the electrical activity passing through.
In principle, it is possible to measure biopotentials in every tissue, but currently the most commonly performed EKG, EMG, and EOG recordings are performed for diagnostic purposes. EOG is a method of recording the electric potential between the cornea and retina with the help of electrodes placed around the eyes. The EOG signal amplitude is 0.05-3.5 mV and its frequency is 1-10 Hz. Electromyography (EMG) is a technique used to evaluate and record the electrical activity produced by skeletal muscles. The EMG signal amplitude is 1-10 mV and its frequency is 0-500 Hz. Electrocardiography (EKG) is a method used to measure the electrical activity passing through the heart using external (skin) electrodes. The EKG signal amplitude is 0.5-1 mV and its frequency is 0.1-40 Hz. The mentioned bioelectric signals are first amplified by a differential amplifier circuit to gain a gain of 101, and then filtered using a high-pass filter appropriate to the frequency band of the signal. In this filtering stage, the cut-off frequencies of the bioelectric signals are adjusted to 0.1 Hz, 20 Hz, and 0.3 Hz for EOG and EMG and EKG, respectively.
How Does the EMG EOG EKG Sensor Board Work?
EMG EOG ECG Sensor Card Features:
EMG EOG ECG Sensor Board Package Contents:
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