Data Acquisition System For Animal Cardiovascular and Metabolic Research

Physiology teaching and research tools developer iWorx recently launched its IX-228S Data Acquisition System for high-end metabolic, oocyte clamp and small animal cardiovascular research applications.

The IX-228S Data Acquisition System from iWorx

This low-noise, high-resolution system utilizes a 16-bit A/D converter for sampling data covering its entire input ±10V range with speeds up to 100 kHz. The low-noise feature of the system reduces the requirement for offset and gain.

This system incorporates a high-voltage and a low-voltage simulator output and 10 channels, of which it is possible to configure Channels 1 and 2 for independent recording of biopotentials. These two channels can also be configured for DC-coupled inputs. A transducer amplifier is incorporated in every channel from 3 to 10 with a wide option of high and low pass filters. In addition, the bioamplifier’s two-channel configuration enables recording of any combination of EEG, EMG, or ECG signals simultaneously.

A 150 V compliant isolated stimulator having a 0 to 20 mA amplitude range is incorporated in the iWorx 228S. The stimulator is ideal for applications that range from pacing a heart of a rodent when pressure-volume loop recording is done to human striated muscle studies. A 16 bit low voltage (±10V) stimulator (DAC) that is software programmable is also included in the iWorx 228S system. Changes in parameters for the stimulator like amplitude, frequency, and pulse width can be done when needed. Pulse, ramp, step, train, and triangle are among the stimulator parameters. The system has eight digital outputs through which devices can be controlled. Such devices include valves and pumps. The output lines can be easily programmed through point-and-click method, without need for complicated scripting language.

The LabScribe software is used to control the iWorx 228S. This powerful analysis and recording software incorporates a user-friendly and intuitive interface to analyze data, set up acquisition screens, and calibrate signals. The system is able to display a maximum number of 128 channels at the same time, achieving sampling rates that are up to100,000 samples/second.

To facilitate data analysis along with easy and speedy interpretation a complete detailed set of analysis routines are pre-configured in the system. For conducting cardiovascular research, specific analysis modules are available for analyzing sonomicrometry dimension data, pressure signals, ventricular pressure-volume loops. ECG recordings, and blood flow data.


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