MP Research Catalog - Biopac

64Stimulator & AccessoriesStimulator ModuleSTM100C & STMISO SeriesSTM100CThe STM100C module provides pulse and waveform stimulus outputsfor nerve conduction, evoked response (e.g. ABR studies), audio stimulusresponse(e.g. startle response) and somatosensory response studies. TheStimulator setup in AcqKnowledge provides easy-to-modify single-, STMISOCdouble- or multiple-pulse sequence outputs of any polarity. TheStimulator setup screen also provides standard sine, triangular andsquare wave outputs for other kinds of physiological tests. Create anarbitrary waveform by modifying an existing wave or reading in asequence of user-specified numbers (text file). Stimulus duration, repetition,onset and amplitude are completely programmable. Forinteractive changes during recording, stimulus amplitude levels can alsobe controlled manually. Overload and pulse stimulus indicators are positioned on the module’s frontpanel for easy viewing. The 50 Ω output port can simultaneously output a trigger or analog signalto piezo transducers, recorders, oscilloscopes, meters, etc. The External Stimulus output port on theSTM100C can be used to drive headphones or tubephones directly.In addition to providing computer control of stimulus waveforms, the STM100C can also buffersignals from any Biopotential or Transducer module that has its output directed to the STM100Cinput during recording.• With the OUT100 headphones, the STM100C module can provide tone or click output(e.g. startle response) or can be used to listen to signals from other module outputs duringacquisition (e.g. EMG or heart sounds signals).• With the OUT101 ear tubephone, the STM100C can output a series of clicks or tone pipsfor auditory brainstem response (ABR) testing.• With the OUT102 piezo transducer, the STM100C can provide an audible indicator, oralarm, when signal levels cross pre-defined thresholds.• With the STMISO series stimulus isolation adapters, the STM100C can provide highvoltage or constant current stimulus output for nerve conduction, somatosensory and othertypes of stimulus response studies.• With the CBL105 and CBL202, the STM100C is capable of driving a low voltage (±10V)nerve conduction chamber directly (without a STMISO).• STM100CSTIMISODSTMISOESTM100C SPECIFICATIONSStimulus Output Voltage: 20 Volts (p-p) maximumCurrent Output Drive: 50 Ω Output: ±100mA(3.5mm phone jack)Ext Stim Output: ±1.0amp [6.3mm (1/4")phone jack]External Stimulus Z (out): Less than 0.1 ΩInput Sources: DA0, DA1, PULSE (DIGI/O 15), CH 16 (Analog)Polarity Control: Manual or digitalcontrol (DIG I/O 7)Attenuation Control: Manual or digital controlAttenuation ControlRange: 128dB (Digital I/O 0-6,LSB-MSB)Attenuation Resolution: 1dBLED Indicators: Pulse, Current LimitUniphasic Pulse Width: 10µs (min) with 5µsresolutionBiphasic Pulse Width: MP100: 50µs (min),MP150: 20µs (min)Biphasic Pulse Resolution:MP100: 25µs, MP150:10µsArbitrary WaveResolution:MP100: 25µs, MP150:10µsWeight:380 gramsDimensions:4cm (wide) x 11cm(deep) x 19cm (high)Electrical Stimulus Isolation AccessoriesStimulus Isolation Adapter (Voltage and Current)The STMISOC can stimulate with pulse, sinusoidal or arbitrary waveforms and is ideal for nerveconduction, muscle twitch, somatosensory stimulation, or other response studies requiring astimulus. It plugs into the STM100C to provide either an isolated voltage or constant currentstimulus and incorporates a selectable linear voltage multiplier to amplify the voltage signal from theSTM100C. Voltage stimulation can be unipolar or bipolar, with a maximum voltage output of 200volts. Current stimulation is unipolar only, with a maximum compliance of 200 volts; 12 presetconstant current levels are provided.• STMISOCSTMISOC SPECIFICATIONSStimulus Pulse Width: 50µsec to 2msec (voltageand current)Stimulus Sine WaveRange:100Hz to 5kHz (voltageonly)Step Up Voltage Ratio: Selectable: (1:5) or (1:10)Maximum OutputVoltage:200V (p-p) into 5k Ω loadConstant CurrentRange: 0.01, 0.02, 0.05, 0.0, 0.2, 0.5,1.0, 2.0, 5.0, 10.0, 20.0, 50.0ma (unipolar only)Current SourceCompliance: 200V maximumIsolation Capacitance: 120pfIsolation Voltage: 1500 VDC (from amplifierground)Cable Length: 1.8 metersWeight:190 gramsDimensions: 10cm (wide) x 5cm (deep)x 4.5cm (high)Interface:STM100C—see above