User's Manual

Sound velocity measurement
68
x If the source of noise is outside the measuring section, the measuring points and
sound source must be arranged as shown on the following picture.
Proceed as follows:
Step Description
1
Position the Power transmitters at the measuring points, attach the sensors
(microphones/hydrophones) and switch the devices on.
There must be radio contact between the Power transmitters and the Correlator.
(If there is a connection, the two battery symbols in the Correlator’s Start screen
reproduce the Power transmitters’ battery level. Question marks are shown if the
Power transmitters are not available.)
2
Make sure the required sound source does exist.
3
use the two arrow buttons to go to the required Offline measuring mode
(“COR PT-3”).
4
In the main menu, tap the button .
5 In the displayed menu, tap the Tools button.
6 In the displayed menu, tap the Velocity measurement button.
Result: The corresponding menu opens.
7
Specify whether the source of noise is inside or outside the measuring section.
Tap the appropriate button:
Leak outside sensors Leak between sensors
8
Specify the length of the measuring
section. Tap the Distance between
sensors button.
Specify the length of the measuring
section. Tap the Distance between
sensors button.
9
Specify the distance from the first
measuring point to the sound source.
Tap the Distance from left sensor
button.
Procedure
Source of noice
distance
Measuring point 2Measuring point 1