|
to determine electrode resistance.
It is also useful to adjust capacitance compensation. Capacity
compensation can adjust up to 35pF of electrode capacitance.
Additional stray capacitance can be reduced by using the driven
shield connector on the head stage probe.
The
Model 3100 has an advanced capacitance "Ringer"control
for clearing electrode tips and enhancing the membrane penetration
of neurons. The Ringer’s amplitude (0 - 10V biphasic) and
frequency (2 - 8kHz) of the pulsed oscillations sent to the electrode can be
adjusted on the front panel.
A six position low
pass filter and a 60Hz notch filter are available for the
researcher to diminish extraneous frequencies and external line
noise.
The current injection system allows for both internally generated
current and externally generated current. This current can be set
for continuous or momentary injection. The sum of the current can
be gated by an external TTL logic signal source.
The
small size of the amplifier and its remote
power supply
offers the advantage of placing the amplifier near to the
experimental set up. For example, the amplifier can be placed
within a Faraday cage with minimal power-line interference.
|
