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(1) Verify the frequency response of the pressure sensor under normal atmospheric pressure and standard temperature conditions with appropriate instruments.
(2) Verify the correctness of the pressure sensor code and the corresponding frequency response signal.
Determine the specific installation location
In order to determine the number and the specific installation location of the pressure sensor, it is necessary to consider each inflation section of the inflatable net.
(1) The pressure sensor must be installed along the cable, preferably at the cable gland.
(2) There shall be no less than 4 pressure sensors installed on each cable, close to the two pressure sensors of the telephone exchange, and the distance shall not be more than 200m apart.
(3) Install one at the beginning and at the end of each cable.
(4) One branch point should be installed for each cable. If two branch points are closer (less than 100 m), only one can be installed.
(5) One cable change method (heading, underground) should be installed.
(6) For unbranched cables, because the cable pattern of the base line is consistent, the installation distance of the pressure sensor is not to be 500m and the total number is not less than 4.
(7) In order to easily determine the point of failure of the pressure sensor, in addition to installing the pressure sensor at the starting point, 150 to 200 meters from the starting point, but also to install an additional one of course in the design, must consider the economic and technical factors, do not need to install Where pressure sensors are located, they should not be installed.