USB-based signal acquisition & amplification
Analog physiological signals need to be digitized, and sometimes amplified, before being acquired by IOX2 software. For this purpose, we offer two USB-based devices that are ideal for a variety of preclinical experiments:
- usbACQ is designed to acquire and digitize high-level analog signals that are pre-amplified up to ±10 volts.
- usbAMP is designed to acquire and amplify biopotentials and signals from strain gauge-based transducers.
Ideal for small-to medium sized anesthetized prep setups, or systems that need to be mobile, our usbACQ and usbAMP devices can be readily transported between desktop or laptop computers.
Our data acquisition devices are well-suited for a large variety of preclinical experiments, such as Cardiovascular, Respiratory or Hemodynamic studies, Pressure-Volume (PV) loops, or ex-vivo studies with isolated organs or tissues.
The usbACQ and usbAMP can be configured to acquire any physiological analog signal from anesthetized or restrained subjects or from isolated organs and tissues:
» Biopotentials (e.g., ECG/EEG/EMG)
» Blood pressure (e.g., BP, LVP, CVP)
» Respiration (Flow-and time-derived parameters, e.g., TV, MV, RR)
» Contractile Forces (e.g., isotonic, isometric)
These plug-&-play devices are ideal for snapshot measurements.
With a direct USB link to a computer running IOX2 acquisition software, usbACQ is designed to acquire any amplified analog signals while usbAMP can acquire and amplify biopotential signals and signals from strain gauge-based transducers (isometric transducers for tissue contraction studies, blood pressure transducers, differential air pressure transducers, etc.).
Technique & measurement
Analog signal already amplified
The usbACQ device is used to interface between a pre-amplified transducer and the acquisition computer. It provides high resolution analog-to-digital conversion and transfers data to the computer via a USB cable.
Biopotential electrodes & strain gauge transducers
Biopotential electrodes (multi-lead or single lead ECG, EEG, EMG) and strain gauge transducers (force, pressure…) can be connected to the usbAMP device, that powers strain gauge transducer, amplifies signals, and performs analog-to-digital conversion. Data transfer to the computer is done via an USB cable.
System configuration & extension
A typical setup includes:
- Computer running IOX2 data acquisition software
- usbACQ or usbAMP device
- USB cable
easyMATRIX3 allows to collect and combine synchronized signals from telemetry implants and any other source (analog signal, biopotential electrodes, strain gauge transducers).
This is particularly useful for cardio- or neuro-respiratory applications. For instance, pleural pressure from an implant and respiratory flow from a head-out plethysmography can be simultaneously recorded, for precise resistance & compliance measurement.