For an expanded measurement volume, additional position sensors may be added.
Digitizing probes are precalibrated pointing devices used to determine the 3D coordinates of points where you may find it difficult or inconvenient to attach markers.
The 6-Marker Probe consists of 6 IREDs permanently embedded in one side of an aluminum
planar instrument. A stainless steel tip protruding from one end of this
instrument acts as a pointing device.
The 24-Marker Probe is constructed by mounting 24 IREDs in spiral fashion around a pen-like aluminum shaft. A stainless steel tip inserted into the end of this shaft functions as the pointing device.
The ODAU II enables a synchronized collection of analog and digital data with the Optotrak position data. Preconditioned signals from devices such as EMG sensors, force plates, accelerometers, and strain gauges may be viewed in real-time and stored to data files for post hoc analysis. The ODAU II utilizes a 16 bit converter to collect up to 16 single-ended input channels or 8 differential input channels. Feedback control to the subject/object of study may be achieved through the 8 digital I/O channels or 2 analog output channels.
For non-PC users, the Optotrak SCSI Interface functions as an external interface device, linking the Optotrak system to your non-PC workstation. SCSI may also be used with notebook computers.
NDI offers 3 styles of strobers that are suitable for different needs:
The 6-Channel Strober attaches up to 6 coaxial cable markers with a LEMO connector.
The 16-Channel Terminal Strip Strober attaches up to 16 twisted pair cable markers that are screwed into the strober.
The 24-Channel Strober has a DB-25 connector that attaches up to 24 twisted pair cable markers that have solder connections.
To eliminate a strober cable the Tetherless Strober Controller may be used.
The Tetherless Strober has an infrared communication link between the System
Control Unit and strobers. With this option, your subject is no longer physically
attached to the Optotrak System Control Unit.
The Data Analysis Package software (DAP) consists of a variety of analysis tools designed to provide further processing of Optotrak data. A menu-driven interface allows the user to modify program parameters, select single or multiple files for processing, and access other software utilities such as the standard Optotrak display program.
The Application Programmer's Interface (API) allows you to control and collect data from the Optotrak system via a C programming language interface. The custom program may configure the Optotrak collection parameters, retrieve contiguous data blocks, and retrieve single frames of data in real time.
To attach a second PC-compatible computer to your Optotrak System, you must purchase the Secondary PCI Interface Kit, consisting of an additional interface card and cabling.
For more demanding processing or memory requirements, the Accelerated Processing option package doubles the. rate of 3D and rigid body data calculations and provides 4 megabytes of buffer memory for storing very large data trials. The package also provides extra memory to store large volumes of Optotrak positional and analog data for later processing.
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