Universal Isolated Stimulator Output (UISO)

Universal Isolated Stimulator Output (UISO)

Required to produce ungrounded (isolated or floating) stimuli and prevent interference in any biopotentials (ECG, EMG, EEG etc.) which are recorded simultaneously. Connect to virtually any type of stimulator delivering a trigger pulse with the same width as the stimulus duration.

Item# Description
73-2696 Universal Isolated Stimulation Unit, 110 VAC, 60 Hz
73-0504 Universal Isolated Stimulation Unit, 230 VAC, 50 Hz
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This unit is required to produce ungrounded (isolated or floating) stimuli and prevent interference in any biopotentials (ECG, EMG, EEG etc.) which are recorded simultaneously.

The UISO can be hooked between any stimulator and the stimulation electorde. It can be connected to virtually any type of stimulator delivering a trigger pulseand timing  with the same width as the stimulus duration. The input for the trigger impulse is a BNC socket on the back plane. It can also be connected to a TTL trigger output generated by a software on a computer as a power amplifier. A switch selects the output amplitude range (0 to 50, 0 to 100 Volt). Fine adjustment is provided by the fine control on a 10-turn potentiometer. Stimuli produced can be either monopolar (positive or negative), or alternated. Alternated stimulation avoids electrode polarization. High voltages are required for field stimulation in tissue baths.

  • Generates isolated stimuli in the range of 0 to 100 Volt
  • Can be connected to any stimulator delivering a trigger signal and timing; the timing unit has to provide the stimulus pattern, e.g., a TTL trigger signal with the timing and pulse width; the UISO's output exactly follows this timing
  • Can be used in combination with a TTL trigger output generated by computer software as a booster output

Applications:

  • Electrophysiology
  • In case of simultaneous biopotential recording
  • Electrical stimulation of tissue in tissue baths (e.g. papillary muscle, together with intracellular action potential measurements)
  • Cell stimulation in baths with field electrodes
Specifications73-269673-0504
Dimension (H x W x D) English6.3 x 2.2 x 8.7 in6.3 x 2.2 x 8.7 in
Dimensions (H x W x D) Metric160 x 55 x 250 mm160 x 55 x 250 mm
Stimuli OutputConstant voltage, floating, isolatedConstant voltage, floating, isolated
Stimuli Output Current1.8 to 2 A for stimuli duration < 100 μsec, 0.5 A at 10 msec stimuli duration1.8 to 2 A for stimuli duration < 100 μsec, 0.5 A at 10 msec stimuli duration
Stimuli Output VoltageTwo ranges 0 to 50 V, 0 to 100 VTwo ranges 0 to 50 V, 0 to 100 V
Stimuli PolarityPositive, Negative, AlternatingPositive, Negative, Alternating
Trigger Input Impedance10 kΩ10 kΩ
Trigger Input Width10 μs to 10 msec defines Stimulus duration; if Trigger Signal Width exceeds 10 msec, stimuli duration is limited on 10 msec10 μs to 10 msec defines Stimulus duration; if Trigger Signal Width exceeds 10 msec, stimuli duration is limited on 10 msec
Trigger Signal3 to 15 V, Trigger level 1.5 V, active low or active high (can be switched internally using jumper)3 to 15 V, Trigger level 1.5 V, active low or active high (can be switched internally using jumper)
Weight (English)2.0 lbs2.0 lbs
Weight (Metric)1.3 kg1.3 kg