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
4-channel DAQ with AcqKnowledge and Workflow License

MP36R Systems with Workflow

This research system ships with an MP36R Data Acquisition unit and AcqKnowledge software licensed for Workflow Automation. MP36R four-channel data acquisition unit has built-in universal amplifiers that can record a wide range of physiological signals. AcqKnowledge Acquisition & Analysis Software is an interactive, intuitive program that lets you instantly view, measure, transform, and analyze data. Perform complex […]

View All
Latest News

New Citations | AcqKnowledge Research Tools

AcqKnowledge is an interactive, versatile software program that allows you to manage data in real time. Perform complex data acquisition, stimulation, triggering and analyses using intuitive navigation. Here are some recent AcqKnowledge citations… The nature of vicarious embarrassment. Journal of Business Research, 153, 355-364. Ziegler, A. H., Allen, A. M., Peloza, J., & Norris, J. I. (2022).    […]

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