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H26 BME Breadboard II

BSL PRO Signal Processing Labs are a series of lessons that explain how to create and test the types of electronic circuits used in Biomedical Engineering.

Concepts introduced include the basics of amplifiers (with special emphasis on the biopotentials), Gain, Common-mode rejection (CMR), Electrode polarization, Frequency response, Input impedance, Signal noise and drift, Filters, and ECG circuit requirements.

The Signal Processing Labs use the BIOPAC SS39L Signal Processing Breadboard with Interface Cables and Electrode Interface. The human body can be studied by viewing the potential difference (Voltage) between strategically placed surface electrodes. In order to view and record the potential difference between surface electrodes, electronic circuits are used. Electrode leads, which are essentially wires, connect the electrodes to the circuit. Most signals from physiological activity have small amplitudes and must be amplified and processed before they can be viewed in a meaningful way.

Experimental Objectives

  1. Square Wave Oscillator
  2. Instrumentation Amplifier
  3. Active Filter: High Pass
  4. Active Gain Block & Low Pass
  5. Notch Filter for 50/60 Hz Rejection
  6. QRS Detection: Band Pass Filter
  7. QRS Detection: Absolute Value Circuit
  8. QRS Detection: Low Pass Filter and Overall System Test

Tasks Performed by the Student

See BME white papers and resources below.

Videos

BSL BME Instrumentation Amplifier

BSL BME Notch Filter

BSL BME Band Pass Filter

BSL BME Absolute Value Circuit

BSL BME QRS Detection

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
SS39LBME Breadboard KitAdd to Cart
SS60LASignal Inputs Cable - SS39L to MP3XAdd to Cart
SS2LBLead set, shielded, BSLAdd to Cart
BSL-TCI22Interface SS2L to SS39LAdd to Cart
EL503Disp. Gen-purp electrode 100/pkAdd to Cart
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How to Record Great Respiration Data

Learn how to select the right tool and technique to record great respiration data for a successful experiment.

Alex Dimov from BIOPAC will review hardware options, including a classic resistance belt, inductance belts, thermistors, bioimpedance, ECG-derived respiration, and airflow.

He’ll provide setup tips and offer an in-depth tour through Respiration analysis and best practices in the lab environment, including Q & A.

Live: Thursday, August 27 at 8:00-9:00 am PT

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