Maico Ero Scan Pro, Руководство по эксплуатации

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Operating Instructions
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SNR to Pass: defines the minimum SNR required for that frequency to be considered a passing
frequency. SNR to Pass is adjustable between 3 and 10 dB
Minimum DP: defines the minimum DPOAE (signal) amplitude required for that frequency to be
considered a passing frequency. Minimum DP is adjustable between -20 and 0 dB SPL. If the user does
not wish to use minimum amplitude as part of the Pass criterion, n/a can be selected for this parameter
and/or the instrument setting for
DP Minimums can be set to off .
Note: when creating or modifying a protocol, the desired setting can be established for the first test
frequency (top row) and then applied to all frequencies by clicking the
Apply Values to All Frequencies
button.
Creating or Modifying TEOAE Protocols
To create a new protocol file, click the
Create New button located on the right panel of the protocol
window. A new dialog will appear, select TEOAE Protocol .
The selection window shown below will appear.
There are three frequency range options when creating a
new TEOAE protocol.
Narrow Band
–
6 frequencies (1500 to 4000 Hz) which
includes: 1500, 2000, 2500, 3000, 3500, and 4000 Hz
Wide Band
–
6 Frequencies (700-4000 Hz) which includes:
700, 1000, 1400, 2000, 2800, and 4000 Hz
Wide Band
–
10 Frequencies (750-4100 Hz) which includes:
750, 1100, 1500, 1900, 2250, 2600, 3000, 3400, 3750,
and 4100 Hz
Note: all TEOAE test frequencies refer to the center of the
frequency band or filter.