BIOPAC® Systems, Inc. Logo

142 – Rate Detector Algorithm in AcqKnowledge

The AcqKnowledge Rate Detector is critical to the ability of AcqKnowledge to extract information from physiological data that has a degree of periodicity. Physiological data which can be investigated using Rate detection include:

>

Waveform

Metrics

Waveform Profile1

Airflow

Respiration Ratesmooth

Blood Flow

Flow Peak, Flow Min, Flow Meansmooth

Blood Pressure

Systolic, Diastolic, Mean, dP/dt Max, dP/dt Minsmooth

ECG

Heart Rate or Inter-Beat-Interval recordingspikey (high slew rate or sharp amplitude transitions)

EGG (Electrogastrogram)

Peristolic contractionssmooth

EMG

Zero Crossing or Mean Frequency analysisspikey

Goinometer (joint angle)

Repetitive motion/exercisesmooth

Nerve

Spike counting, Frequencyspikey

Pulse plethysmogram

Pulse Rate, Inter-Beat
Interval, Volume
smooth

Respiration

Respiration Ratesmooth
1

Most physiological data which is periodic in nature is smoothly varying.
However, important data types that are “spikey” include ECG and EMG.

The AcqKnowledge Rate Detector incorporates a significant amount of flexibility to optimize performance when extracting data from periodic physiological waveforms. The Rate Detector Algorithm is a procedure whereby some special cyclic property of a waveform is determined by a search for waveform peaks or valleys. This application note explains the major component functionality of the Rate Detector algorithm that facilitates the search for these peaks and includes a discussion on signal conditioning methods that will help render optimal results when the Rate Detector tool is applied.

Associated Applications

Spotlight On
free BIOPAC webinar

New Integration > NIBP & BIOPAC Physiology Research System

Cardiovascular insights are much easier to achieve with this new integration from BIOPAC and CNSystems. The CNAP™ technology is now fully incorporated in a single BIOPAC amplifier for the MP160 system where it can be fully controlled by AcqKnowledge Software—optimized for research utilizing core CNAP clinical technology.

What you will learn:
• Correct equipment set up and operation
• Principles of the CNAP measurement technology
• How to get reproducible data
• How to interface equipment and optimize multiple measurements
• Automatic blood pressure analysis
• Application of the “Focus Areas” feature in AcqKnowledge Software

Watch On-Demand

Register Now
Latest News

New Citations | Physiological Measures to Understand Stress

BIOPAC provides software and hardware that allows research teams to study physiological measures related to stress. Here are a few notable studies using BIOPAC equipment for ECG, EDA, and EEG/ERP. Moms Moderating Stress Can relaxation techniques help lower stress on both mother and fetus? Using an MP36R Data Acquisition system to record ECG and EDA, this study […]

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