Électronique du Mazet ECHODIA ELIOS, Руководство пользователя

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User guide
ELI O S
ECH001XN111-A4 – 07/2022
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Handheld mode measurement 4.6 Shift-OAE
4.6.3 Measurement consultation
This graph contains several items of information :
•
The phase curve represents the measured phase shift value included between ±180°. The color of each point on
the graph depends on the position of the patient.
1. The index given above is the phase shift value in degrees.
2. The index, indicated in white below, is the ratio between the effective signal and the average noise in dB
(S/N). To validate a point, this value must be greater than 6dB.
•
To help you to analyze a point, in the lower part of the graph, the system plots two solid curves.
1. The green curve represents the effective signal.
2. The red curve represents the average noise level.
3. The 2 indexes displayed on the right of the Minimum/Maximum values of the effective and average noise
signals.
In order to help you with the analysis, two draggable marks (A and B) can be placed on the graph to automatically
calculate the phase gap between two positions.
The graphic scale of the phase is included between ± 180° but the measured value can be outside these limits. In this
case, we add to this value: ± 360°. This is a way of displaying all the values but sometimes it makes it difficult to use the
graphs. By holding down the mouse button in a graphic zone, you can drag this curve vertically.
Curve before sliding Curve after sliding
Refer to paragraph 4.1 for more details about patient management.
Measure informations
Phase curve
Min / Max signals
Select phase shift calculation
marker
Phase shift between A
and B