EOG Smart Amplifier

The EOG Electrooculogram Smart Amplifier is designed specifically to amplify corneal-retinal potential. It monitors the DC potential on the skin surrounding the eyes, which is proportional to the degree of eye movement in any direction. The output can be switched between normal EOG and Derivative of EOG. In Derivative mode, the amplifier outputs the measured velocity of eye movement, which is useful for saccade and nystagmus investigations. The amplifier permits DC coupling to electrodes for X/Y graphing of eye movement without discernible decay.

BIOPAC’s new Smart Amplifiers are designed for great data. Smart Amplifiers improve performance by amplifying the physiological signal close to the subject, which allows a high-level voltage connection to the data acquisition system and reduces noise artifact.

AcqKnowledge Smart Amp setup includes guides and prompts to prevent errors. Plus, channels are automatically set to be plotted and included in input values display, with the initial visual range set to the min/max input range for that Smart Amplifier signal type, in appropriate units.

Connect short-cable leads from the proven BN Series of accessories—BN-EL*-LEAD3 electrode lead if a ground electrode is required or a BN-EL*-LEAD2 electrode lead if there is already another Smart Amplifier with a ground lead on the subject—and use with disposable EL500 Series electrodes.

The Smart Amplifier may be attached to the subject either using the included velcro backed clip or optional velcro straps around the subject. The amplifier terminates with a 3 m long cable and connects to the AMI100D Amplifier Input Module.