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fNIR Sensors

Safe, Affordable, Noninvasive Cognitive Function Assessment

Wireless functional near infrared optical imaging system

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fNIR Sensor Replacement for Optical Brain Imaging
Part #: RXFNIR-4, RXFNIR-PED, fNIR-Phantom

Functional near infrared optical brain imaging forehead (prefrontal cortex) sensor pads connect to fNIR System Imager unit to provide real-time oxy-Hb, deoxy-Hb, and raw data values for each channel measurement area.

PART # | Channels | Detectors | Emitters | Inter-optode Distance | Interface

RXFNIR-4 Split | 4 | 4 | 2 |25 mm | all Imagers

RXFNIR-PED Pediatric | 2 | 2 | 1 |20 mm |all Imagers

FNIR-PHANTOM | mimics optical properties of brain tissue to test sensor performance |≥ Imager 1100

Note: RXFNIRA was discontinued October 2017; sensor was Adult | 16 |10 | 4 | 25 mm | tethered Imager 1200 and required RXFNIR-SEN-CBL.

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Clean Data

Raw light intensity & oxygenation data, modern noise reduction methods & analysis options

BIOPAC data acquisition
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Part #: N/A
Categories: fNIR Optical Brain Imaging - Research
Subcategories: Sensor Options - Research

Details

Compatibility


Photo-detectors: Silicon photodiode with integrated trans-impedance preamp

Photo-emitters: 730 nm/850 nm dual wave-length LED

Material: silicone rubber over-molded

Phantom Sensor

The phantom sensor material mimics optical properties of brain tissue, and it is used to test the system to make sure that the fNIR sensor is detecting correctly.

See the fNIR COBI Manual for details on how to run a Self-Check to test signal levels at each channel and generate a report that indicates performance on each channel.

fNIR Phantom self-test

Cleaning fNIR Imagers and Sensors

All generations and models: Use an alcohol swab to gently wipe the surface of the fNIR Imager unit or sensor.

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Application Notes

Applications

Downloads/Resources

Knowledge Base

Manual

Scripts

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Basic principles of physiological data collection covers fundamentals of data collection and equipment configuration equipment to help you refine experiment protocols and avoid costly missteps. Frazer Findlay, CEO of BIOPAC, discusses common mistakes with physiology recording and shares his secrets for collecting great data. Topics include: How to prep a subject and where to place electrodes; Which type of electrodes work for different body signals; Analog to Digital Conversion; Sample rates (correct vs. incorrect); Filtering; and Scaling and calibration.
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