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| Analog Input Box (AIB) (Including 8 channels) |
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| The Analog Input Box (AIB) is an extra option to acquire additional analog input signals which have to be kept isolated from the subject. For example mains powered equipment. Up to 32 channels can be acquired simultaneously with up to 256 channels from the AD-box connected to the subject. |
| A first fiber carries the data coming from the subject connected AD-box to the AIB, then a second fiber with the combined data goes from the AIB to the receiver where the total 288 channels are processed. |
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| EUR 4000,- (including 8 channels) |
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Electrode holders |
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BioSemi Active electrode holders complete with X-ring. These holders are easily mounted in the headcap, and are designed to hold the pin-type Active electrodes. The holders can be disassembled and relocated in the cap in order to change electrode positions.
EUR 5 per holder |
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empty headcap |
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Headcap by ECI, empty cap without holes and electrodes, complete with 73 or 128 indication dots for standard electrode positions (the user is free in the selection of the electrode positions)
EUR 200 per cap (empty cap with 0 holders) |
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adhesive disks |
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Double sided adhesive disks for firm placement of the Active electrodes on the skin. Two sizes are available: 20mm x 8mm or 13mm x 5mm (outside x inside). Both sizes are suited well for BioSemi Flat-type active electrodes.
EUR 80 per pack of 500 |
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gels |
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Electrode gel, Signa gel by Parker, low impedance highly conductive gel, specially formulated to maximize contact between the body surface and the Active electrodes, bacteriostatic, non-irritating, non-staining, and non-gritty. Sufficient for approximately 20 128-channel measurements.
EUR 12 per tube of 250 gram |
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gels |
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Electrode gel, Elefix by Nihon Kohden, low impedance highly conductive gel, specially formulated to stick the electrodes on the skin without additional adhesive disks.
EUR 30 per container of 400gram |
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syringe |
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Special syringe with blunt needle for easy injection of electrode gel in the BioSemi electrode holders.
EUR 5 per syringe |
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| Nihon Kohden TR-753T respiration belt. Two channels on the ActiveTwo are modified in order to do bipolar respiration acquisition. Strong reliable signals are available because the respiration belt uses the powersupply from the ActiveTwo system. The respiration belt directly plugs into the front of the ActiveTwo. An additional LabVIEW module is delivered with the system when a respiration belt is ordered. |
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| Note: The respiration belt needs extra 2 channels. |
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| EUR 725,- (EUR 1125,- including the 2 extra channels) |
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| With this ActiveTwo accessory, the impedance of the skin can be measured. The GSR exists of 2 passive Nihon Kohden electrodes to induce an oscillator signal synchronized with the sample-rate. Two connectors (2x2mm) are added to the ActiveTwo front panel. Because the BioSemi GSR uses "Lock-in detection", the stimulus-current can be as low as 1uA. The low-current and synchronized oscillator ensure that the biopotential measurements (ECG,EEG,EMG) are not corrupted by the GSR oscillator signal. An additional LabVIEW module is delivered with the system when GSR is ordered. |
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| Note: The GSR needs 2 extra channels. |
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| EUR 725,- (EUR 1125,- including the 2 extra channels) |
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| With this high precision temperature sensor from HP (Agilent 21078A), skin temperatures can be measured. The temperature sensor directly plugs into the front of the ActiveTwo. An additional LabVIEW module is delivered with the system when a temperature sensor is ordered. |
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| Note: The Temperature sensor needs 2 extra channels. |
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| EUR 700,- (EUR 1100,- including the 2 extra channels) |
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| Plethysmograph sensor (bloodflow) |
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| This Plethysmograph sensor from ADI instruments (MLT1020) uses an infrared photoelectric sensor to detect changes in tissue blood volume. The Plethysmograph sensor directly plugs into the front of the ActiveTwo. An additional LabVIEW module is delivered with the system when a Plethysmograph sensor is ordered. This sensor can be ordered with a finger clip (/F option), with a Velcro strap (/p option) or with an ear clip (see picture, /E option). Click here for the .pdf specifications of the plethysmograph. |
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| Note: The Plethysmograph sensor needs 1 extra channel. |
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| EUR 700,- (EUR 900,- including 1 extra channel) |
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Light detector for direct connection to the Ergo input.
The sensor consists of a sensitive PIN diode with integrated trans impedance amplifier. This sensor can be used for measuring visual stimuli simultaneously with the physiological data (EEG). This allows checking the timing accuracy of the used stimulus setup. |
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| Note: Connects to the Ergo input. |
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| EUR 150,- (excluding Ergo input) |
| EUR 550,- (including Ergo input) |
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Extra Aux connector with bi-polar analog input for isolated sensors.
Bi-polar analog input on the front of the AD-box for all kinds of general isolated auxiliary signals (e.g. custom made GSR measurement device, microphone, photo sensor). DIN 5-pole input connector on AD-box front-panel. Single 5 Volt power supply available (300 mA max)
- Including 2 ADC channels.
- Input range: +/- 1 Volt. |
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| Note: For un-isolated sensors use the AIB. |
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| Single Ergo (1 x bi-polar input) |
EUR 400,- |
| Dual Ergo (2 x bi-polar input) |
EUR 800,- |
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| BioSemi can equip your force transducers with a miniature (15x30mm) precision strain gage amplifier. This makes your strain gage Active, the output signal is processed by the ActiveTwo AD-box just like any other active sensor. The advantages are that all influences of the connection cable are completely eliminated, no cable interference and no temperature drift. The Active strain gage contains a low-noise, low-power, zero-drift, chopper-stabilized differential amplifier. The power supply is from the ActiveTwo AD-box (16mA total bridge current). The modification to the Active strain gage can be performed for quarter, half and full bridge strain gage configurations. The supplied LabVIEW module automatically zero's the bridge and amplifier offset on startup. No further hardware trimming is necessary. The photo shows a precision force measurement for finger pressure, the amplifier is sealed in resin on the left side of the ergometer. |
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| Note: The Active strain gage needs 2 extra channels. |
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| EUR 1300,- up to 1500,- (depending on the mechanical work) |
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The Jazz eye tracker system is a development of a Polish academic research group, led by Prof. Ober. A special 'synchronic' version has been made on OEM basis for BioSemi for interfacing directly with the ActiveTwo. The synchronic Jazz system consist of 3 building blocks:
- Head mounted eye-tracker.
- Transmitter with twin fiber-optic connection (data out, sync in).
- Receiver with direct connection to BioSemi USB2 receiver.
The sample rate of the Jazz is synchronized with the ActiveTwo sample rate with a sync connection between ActiveTwo receiver and Jazz receiver. The Jazz receiver connects to the trigger-port of the BioSemi USB2 receiver. Our LabVIEW acquisition software combines the ActiveTwo data and Jazz data, the Jazz channels are available simply as extra channels in the resulting BDF file. |
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| More info about the Jazz eyetracker can be found in this .pdf file. |
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| EUR 8000,- (including ActiView module for simultaneous eye tracking acquisition) |
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| Microphone to record audio stimuli and responses. A highly effective built-in spherical filter minimizes wind and breath 'pop' noise. Connects directly to the standard BioSemi ActiveTwo Ergo input on the AD-box. |
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| Note: Connects to the Ergo input. |
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| EUR 300,- (excluding Ergo input) |
| EUR 700,- (including Ergo input) |
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| Response switch (optimal response timing and subject isolation) |
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Response switches for direct connection to the AUX (front) connectors on the AD-box.
These response switches connected directly to the AD-box ensure accurate timing of the response moments (pulse is mixed directly with the incoming EEG signals) as well as optimal isolation of the subject (no grounded equipment near the subject).
Using the USB trigger port also has good timing, but has the disadvantage of bringing the safety grounds near the subject. Under Windows, it is advisable to only use the PC keyboard (ActiView: function keys F1-F8) for none time critical responses because Windows OS is not a real time operating system. There is no fixed timing relation between incoming data through the USB port (EEG data) and signals coming from the keyboard (subject response). The timing relation between the USB port (EEG data) and the keyboard (subject response) can not be determined precisely under Windows.
The BioSemi Response switches connected to the AD-box will make sure your response timing is accurate and your subject isolation remains optimal ! |
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| EUR 400,- (including 1ADC channels) per response switch |
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| This cable connects the stimulation PC (parallel port) with the trigger input/output connector (37 pin female sub-D) of the BioSemi USB receiver. |
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| EUR 100,- |
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| Cambridge Research Systems |
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| As the representative for Cambridge Research systems, all their products can be bought directly through BioSemi. Cambridge Research Systems supplies a range of solutions for vision scientists. These include: |
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- Visual Stimulators
- Visual Stimulus Software
- Stimulus Displays
- Display Calibration Equipment
- Subject Response Boxes
- Stereo Goggles
- Stereo Monitors
- Eye Trackers
- Eye Tracking Software
- Functional Imaging Software |
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