BIOPAC® Systems, Inc. Logo

H20 Filtering

This PRO Lesson describes how to design and develop software-based digital filters to perform a variety of physiological signal filtering tasks and cascade 2nd-order biquads to create high order filters. All data collection and analysis is done via the BIOPAC MP3X data acquisition unit and the Biopac Student Lab PRO software.

Experimental Objectives

  1. Generate Filter Step Response signals.
  2. Generate the Filter Transfer Function.
  3. Verify the Filter Transfer Function using sine waves.
  4. Create a cascaded (dual biquad) filter to optimize the physiological recording of ECG.

Tasks Performed by the Student

Videos

Biopac Student Lab Student Download

Student Prep & Distance Learning

Click the link(s) below for sample data and/or lesson procedure video(s), BSL PRO Lesson procedures (PDF) for human lessons*, and graph template files (*.gtl) for BSL PRO Lessons. If more than one .gtl is available, download the .gtl with the _suffix to match BSL version and hardware.

Lesson Hardware

This lesson requires a Biopac Student Lab (BSL) System and the following hardware. If your BSL System does not include all hardware items, expand your system by selecting required items below. For more details, review the Lesson: L# BSL Lessons - see the Lab Manual or launch BSL; A# and H# BSL PRO Lessons, click the PDF link above to review full setup, recording, and analysis procedures.

ItemNameCart
EL503Disp. Gen-purp electrode 100/pkAdd to Cart
ELPADAbrasive Pads 10/pkAdd to Cart
GEL1Electrode gel 50 gAdd to Cart
SS9LAInput Adapter, Unisolated, BNC - MP36/35 MP46/45Add to Cart
SS2LBLead set, shielded, BSLAdd to Cart
Spotlight On
BIOPAC EDA

EDA Smart Amplifier

Easily record great electrodermal activity (EDA, GSR) data. BIOPAC’s new Smart Amplifiers are designed for great data. Smart Amplifiers improve performance by amplifying the physiological signal close to the subject, which allows a high-level voltage connection to the data acquisition system and reduces noise artifact. AcqKnowledge Smart Amp setup includes guides and prompts to prevent […]

View All
Latest News

New Citations | Keeping Students Attentive in an Online Setting & More!

BIOPAC provides software and hardware that allows research teams to record and analyze numerous body signals for physiological experimentation. Here are a few notable studies using BIOPAC equipment for ECG, EDA, and Respiration data. What Keeps Students More Engaged? The question has been brought to the forefront during COVID, what variations of online learning keep students more engaged? […]

Electrocardiography Guide Now Available

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, […]

Read All
Request a Demonstration
Request a Demonstration