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  Home > Physiology > Lab Linc V System > Modules >

  DIRECT COUPLED BIOAMPLIFIER



 

Product Code: V75-03
Contact our Behavioral Research Specialists for more information

Description
 
The V75-03 and V75-06 are directly coupled to the input signal without a preamplifier-coupling filter. These are used for very low frequency signals. A 60 (or 50) Hz notch filter is built in and can be bypassed. Biopotentials from electrodes may be of very large potential with only a small variation "riding on top" of the overall signal. AC coupled amplifiers like the V75-01, V75-02, V75-04, and V75-05 BioAmplifiers de-couple any overall, large DC potential and pass only the variation (above the frequency selected on the preamplifier coupling control). These BioAmplifiers are used when the entire signal (absolute level) or very slow variations are of interest for signals like ENG and EOG.  The V75-06 is used when isolation is required to prevent interference when multiple signals are being recorded from one subject.  Isolation from earth ground for safety may also be required in situations where other sources of voltage with respect to earth ground are present in the environment and represent a hazard to the subject.

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