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This paper presents the implementation of four channel Electromyography (EMG) signal acquisition system for acquiring the EMG signal of the lower limb muscles during ankle joint movements. Furthermore, some post processing and statistical analysis for the recorded signal were presented. Four channels were implemented using instrumentation amplifier (INA114) for pre-amplification stage then the amplified...
Electromyography (EMG) is a signal which produces from motor units (MUs) in the muscles during contraction activities. By detecting EMG, it can show muscle contractions and body members' movement such as hand, eyes and legs. Monitoring and analyzing these signals from the skin which called Surface EMG (SEMG) required some essential components, for example electrode, data acquisition (DAQ) system and...
Innovation of ISFET with electrochemical and silicon technology has the advantage of ease of integration with associated signal processing, simplicity, portability and potential on-site screening. ISFET sensor plays a critical role in biomedical instrumentation system. It serves at the front end of instruments in signal acquisition and conditioning circuit, interfacing between the electronic signals...
Using the temperature calibration instrument, the purpose of this paper is to design the uncertainty calculation system. The test was conducted using Resistance Temperature Detector (RTD) sensor, transmitter, and repeated for three times. The data acquisition (DAQ) card is used to interface the temperature instrument and the computer. In order to determine the uncertainty of the temperature measurement,...
Three-dimensional (3D) colour-coded mapping of dominant frequency (DF) from noncontact unipolar electrograms in real-time can serve as a powerful tool for identifying potential atrial fibrillation (AF) drivers allowing the analysis and identification of re-entrant circuits sustaining AF. The main problems with the current technology of 3D DF mappings are the lack of spatial resolution and the long...
A novel integrated sensor system for indoor air quality (IAQ) measurement based on infrared absorption principle is developed; the system is designed to monitor and evaluate the indoor air quality according to Malaysian IAQ standard. It can measure the concentration of three gases; carbon dioxide (CO2), carbon monoxide (CO) and formaldehyde (CH2O) to the 1 part per million (ppm) level. The system...
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