Digital Recording System

This powerful, user friendly, 4-channel digital data acquisition system utilizes the versatile Models P122 AC/DC and P511 AC amplifiers for signal conditioning with the analog outputs connected to PolyVIEW® for display and analysis. The P122 is a high gain, low noise, stabilized DC amplifier. Transducer excitation, balancing circuitry and filtering are standard features.

The P122 will interface directly with the transducers illustrated for indirect blood pressure, respiration rate, peripheral pulse, skin conductance and many more.

The P511 amplifier features a wide range of amplification, low and high pass filtering for recordings of EEG, EMG, ECG and nerve activity.

The optional Model SD9 Stimulator expands the system capabilities by providing muscle and nerve stimulation.

PolyVIEW, the Grass digital data acquisition package, is a Windows®-based application that connects directly to the P122 and P511 analog outputs, provides turn-key functionality, scrolling display, waveform cursor measurements, real-time annotation, variable sample rates and powerful analysis functions. PolyVIEW offers up to 16 channels of recording capabilities and a powerful digital oscilloscope function with 20 kHz maximum digitization rate/channel. Acquire EEG, EMG, ECG, pressures, force and many other physiological data signals. Derive heart rate, integrated EMG, respiration rate, dP/dT, using PolyVIEW DSP functions in real time or post acquisition.