OBELAB - NIRSIT
The NIRSIT is a light-weight, easily configurable, multi-channel fNIRS imaging system for prefrontal brain with high portability. fNIRS is an effective and non-invasive functional brain imaging device.
It has custom-made dual wavelength VCSEL laser as illuminator with active detection technology for wearable brain imaging solution. This system allows real-time measurements of the prefrontal cortex.
Please find more information here.
NIRSIT Applications
- Cognitive study
- Characterization of metabolic changes
- Affective state decoding
- Brain computer interface
Technical Specification
| Physical | |
| Dimensions | 215 x 195 x 75 (mm) |
| Weight | 500g |
Operational | |
| Illumination type | Custom dual wavelength VCSEL Laser |
| Number of Illumination Sources | 24 |
| Laser Output | 3mW/Source |
| Wavelength | 780 nm, 850 nm |
| Detection Type | Active Detection Sensor (no optical fibers |
| Sensor Type | PIN photodiode |
| Number of Detectors | 32 |
| Number of Detection Channels | Max 204 channels (DOT mode) |
| Source Detector Separation | 1.5cm, 2.12cm, 3 cm, 3.35cm |
| System scan rate | Max 32.552 Hz |
| Power | Lithium ion polymer battery
3000mAh |
| Mode of Operation | Continuous Wave |
| Modulation Method | CDMA, TDMA |
Electrical | |
| Input Voltage | 220V with 5V DC Charger |
| Digital Output | WLAN, USB 2.0 Serial Connection |
Software Features
Software provides a mobile tablet based user friendly Graphical User Interface (GUI) for system control, real-time cortical 3D mapping of transient Oxy and De-oxy hemoglobin concentration variation.
• Automatic receiving end gain control
• Real time event recording
• Various data saving txt, csv
• Real-time Adaptive filtering and digital filters
• Motion artifact algorithm