眼动仪技术规格
EyeLink Portable Duo是一款基于屏幕的便携式眼动仪，可在实验室内外为研究提供准确和精确的数据（高达2000 Hz）。有关EyeLink Portability Duo跟踪器功能的技术规格，请参阅下文。如有任何问题，请与我们联系，或索取报价。我们是来帮忙的。您还可以看到技术比较与EyeLink 1000 Plus，EyeLink Duo和EyeLink 3。
Sampling Rate
Head Stabilized Tracking
Monocular or Binocular
250, 500, 1000, 2000 Hz
Remote, Head Free-to-Move Tracking
Monocular or Binocular
250, 500, 1000 Hz
Eye Tracking Principle
Pupil with Corneal Reflection
Average Accuracy¹
Down to 0.15° (0.25° to 0.5° Typical)
Saccade Event Resolution
Resolution 0.05° Microsaccades
Spatial Resolution²
0.01°
Noise with Participants¹
Head Stabilized Tracking
Filter (Off / Normal / High)
1000 Hz: 0.03°/ 0.02°/ 0.01°
2000 Hz: 0.05°/ 0.03°/ 0.02°
Remote, Head Free-to-Move Tracking
Filter (Off / Normal / High)
500 Hz: 0.03°/ 0.02°/ 0.01°
1000 Hz: 0.05°/ 0.03°/ 0.01°
End-to-End Sample Delay³
Head Stabilized Tracking
M = 1.34 msec, SD = 0.18 msec @ 2000 Hz
M = 1.88 msec, SD = 0.36 msec @ 1000 Hz
Remote, Head Free-to-Move Tracking
M = 2.10 msec, SD = 0.37 msec @ 1000 Hz
M = 3.21 msec, SD = 0.61 msec @ 500 Hz
Blink Recovery Time
Head Stabilized Tracking
0.5 ms @ 2000 Hz
1.0 ms @ 1000 Hz
Remote, Head Free-to-Move Tracking
1.0 ms @ 1000 Hz
2.0 ms @ 500 Hz
Pupil Detection Models
Head Stabilized Tracking
0.5 ms @ 2000 Hz
1.0 ms @ 1000 Hz
Remote, Head Free-to-Move Tracking
1.0 ms @ 1000 Hz
2.0 ms @ 500 Hz
Pupil Size Resolution¹
0.1% of diameter
Gaze Tracking Range
Customizable – Default is 32° horizontally, 25° vertically
Allowable Head Movement
Head Stabilized Tracking
±25 mm horizontal or vertical
Remote, Head Free-to-Move Tracking
20 cm horizontal X 20 cm vertical at 52 cm
Optimal Camera-Eye Distance
42–62 cm
Glasses Compatibility
Excellent
Online Event Parsing
Fixations / Saccade / Blink / Fixation Update
EDF File and Link Data Type
Gaze, Raw, and HREF Eye Position Data / Pupil Size / Online Events / Buttons / Messages / Digital Inputs
Real-Time Operator Feedback
Eye position gaze cursor superimposed on static image or position traces with camera images and tracking status
Certifications
IEC 60601-1 ed. 3., AAMI ES60601-1, CSA C22.2#60601-1 ed. 3.1, IEC 62366 ed. 1, ISO 15004-1, ed. 1, ISO 15004-2, IEC 62471
ed. 1, ISO 14971. ed. 2, IEC 60601-1-6 ed. 3.0, IEC 60601-1-2, ed. 4
Specifications are subject to change without notice. Availability of some features depends on options purchased.
¹Measured with real subject fixations.
²Unfiltered data measured with an artificial eye.
³Time from physical event until first registered sample (unfiltered) is available via Ethernet.