A band pass filter allows the energy concentrated between two given frequencies (X and Y) to pass while it attenuates the signal's energy at other frequencies. It is equivalent to applying a high-pass filter at X and a low pass filter at Y.
A band stop filter attenuates the energy in the frequencies between two given frequencies (X and Y). It is equivalent to applying a low pass
filter at X and a high pass filter at Y.
Note that filters do not remove all of the energy outside of their pass band (the pass band is the frequencies between X and Y for a band pass filter, and below X and above Y for a band stop filter). Generally, the further away from the cut off frequencies (X and Y), the greater the attenuation of the energy. How fast the attenuation increases as a function of frequency is established by parameters (primarily “Q”) of the filter. Real filters will also attenuate within the pass band, and there are some tradeoffs in the selection of parameters.
MP160 data acquisition and analysis systems with AcqKnowledge software provide a flexible tool for life science research. MP160 data acquisition workstations include all hardware, software, cables, and guides you need to get started. MP160 Data Acquisition Hardware—Ethernet-ready data acquisition and analysis unit can record multiple channels with differing sample rates; record at speeds up to 400 kHz (aggregate). […]
BIOPAC provides software and hardware that allows engineers to study the body. Here are a few notable studies using BIOPAC equipment for Biomedical Engineering research. Rehabilitating the Rehab Industry Could physical therapy be done from the comforts of your own home? If possible, this would open the door for more people with all sorts of ailments to […]
BIOPAC’s comprehensive Introductory ECG Guide addresses fundamental to advanced concerns to optimize electrocardiography data recording and analysis. Topics include: ECG Complex; Electrical and Mechanical Sequence of a Heartbeat; Systole and Diastole; Configurations for Lead I, Lead II, Lead III, 6-lead ECG, 12-lead ECG, precordial leads; Ventricular Late Potentials (VLPs); ECG Measurement Tools; Automated Analysis Routines for extracting, […]