BIOPAC® Systems, Inc. Logo

Volume from airflow

The AcqKnowledge and BSL PRO software has a sophisticated Integration feature that works both online and offline. The algorithm identifies the start or end of each breath and integrates the signal to provide a volume signal.

The algorithm has an option for subtracting the mean of the airflow signal, which helps to eliminate any drift or offset in the airflow transducer. The software removes the mean on a breath-by-breath basis and stabilizes the baseline before performing the integration. This feature will delay the display of the volume measurement because the integration can’t commence until the end of the breath. The software will allow you to enter a fixed delay interval so that you know the exact delay between the airflow and volume signals. By using a delay calculation channel, you can also delay the original airflow signal by the same time period. This will align both the volume signal and the airflow.

Associated Applications

Associated Disciplines

Spotlight On
BIOPAC Facial EMG

FEMG Smart Amplifier

The fEMG Electromyography Smart Amplifier is designed specifically for recording facial EMG signals and electrical activity from other small muscle groups. Use with AcqKnowledge™ software to analyze facial expressions and startle paradigms. 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 […]

View All
Latest News

New Citations | Combat Helicopters: Luxury Cars of the Sky

Recent psychophysiological studies feature BIOPAC’s MP Research series of Data Recorders and AcqKnowledge software. Creating Adaptive Assistants for helicopter crews based on Real-time Physiological Data In the Mercedes S-Class, biometric tools track a driver’s eyes, heart rate, and other physiological data, with one goal in mind: Making sure drivers are alert and safe on the […]

Electrocardiography Guide Now Available

BIOPAC’s just released 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 […]

Read All
Request a Demonstration
Request a Demonstration