Tobii Pro Mobile Device Stand, Руководство пользователя

Страница: 15 / 26

2. Remove the calibration plate fixing rod by pulling it straight out.
3.4 Adjusting the Tilt Angle of the Tobii Pro Mobile Device Stand
The Mobile Device Stand tilt angle can be adjusted to accommodate for different participant heights, positions and setups. The
objective when adjusting the tilt angle is to make sure the participant is in the optimal position for the eye tracker. Each partici-
pant’s position should be examined and adjusted using the Track Status feature in Tobii Studio, Pro Lab or Eye Tracker Manag-
er, before the calibration procedure starts.
To adjust the tilt angle of the Tobii Pro Mobile Device Stand:
1. Loosen the large hand screws on the sides of the main body.
2. Adjust the angle by turning the metal cylinder at the back of the
main body. Turn clockwise to tilt the stand forward, turn counter-
clockwise to tilt the stand backwards.
When adjusting the angle of the Mobile Device Stand be
careful not to injure the test participant or yourself as
there is a risk of objects or fingers being squeezed be-
tween moving parts. The scene camera holder can cause
injuries if it strikes the head or other body parts.
3. Tighten the large hand screws on the side of the main body to ensure steadiness of the stand during testing.
3.5 Mounting the Eye Tracker Extension
In some testing scenarios the participants may be too far from the eye tracker (e.g. if the person is very tall or is sitting on a high
chair). In such cases the eye tracker extension can be used to reduce the distance between the participants’ eyes and the eye
tracker.
Having the participant sit farther away from the mobile device (possible when using the eye tracker extension) will enable eye
tracking on larger devices. For a Tobii X2-30/X2-60 Eye Tracker the maximum participant gaze angle is 31º (see technical
specification for further details on gaze angles), increasing the distance between the participant and the mobile device will im-
prove the eye tracking data quality for larger devices. See illustration.
Tobii Pro Mobile Device Stand User’s manual v.1.0.8 - en-US
3 Assembly Instructions
11