Скачать или смотреть H40 Robotic/Prosthetic Gripper Lab 5

Students follow BSL PRO H40 EMG-Controlled Robotic/Prosthetic Gripper Lab 5 to create two low pass filters at 500 Hz. The purpose of the low pass filter is to limit the response of the system to only the frequencies of interest. The 500 Hz limit is set since unfiltered EMG signals typically reside around 0.5 to 5 mV. In this lab students also learn about filter types that are very important for physiological recordings, such as Butterworth and Bessel filters. Students learn about different filter characteristics and also compare how filter responses can vary in magnitude, phase, and delay. In the data report, the low pass filter is evaluated using the 1 interval difference and FFT as shown in this video. Eventually, students select data from 0-500 Hz and measure Delta to verify the 3 db cutoff. Measurements are then added to the data report. See https://www.biopac.com/curriculum/h40...