Microelectrode AC Amplifier
This is a two-channel,
differential amplifier equipped with Head Stage probes and is
intended for extracellular recording and/or stimulating with high
impedance metal microelectrodes in research and teaching applications.
Extracellular neurophysiological recordings with high impedance
microelectrodes can easily be done from excitable tissues such as
nerve and muscle.
Special Features:
Mode Selection: |
This switch allows the user to select one of three
Modes for each channel of the amplifier: Impedance Check, Record, or Stimulate. During Impedance
Check, an internal 1 kHz oscillator automatically applies a
calibrated current through the electrode and the amplifier
monitors the voltage in order to check impedance. |
Capacity: |
This control is used to neutralize the capacitance during
electrode impedance check. In record mode, the instrument amplifies
the differential input signal by an amount selected by the Gain
switch. In the Stimulate mode, a stimulus is applied directly to
the electrode through the Stimulus connector, and the amplifier
monitors the current passing through the electrode. |
Gain Selection: |
In the Record mode, the gain of each amplifier may be
independently set by adjusting the Gain switch to x100,
x1000, or x10,000. |
The unit ships complete with:
