Proper installation method of pressure sensor:

(1) Verify the frequency response value of the pressure sensor under normal atmospheric pressure and standard temperature conditions with an appropriate instrument.

(2) Verify the correctness of the coding of the pressure sensor and the corresponding frequency response signal.

Determine the specific installation location

In order to determine the number and specific installation location of the pressure sensor, it is necessary to consider each inflating section of the inflating net.

(3) One cable shall be installed at the beginning and end of each cable respectively.

(4) The pressure sensor is installed along the cable, which is better installed at the cable connection.

Pressure sensor

(5) One cable should be installed at the change of cable laying mode (overhead, underground)

(6) For the non-branched cable, the installation interval of the pressure sensor is less than 500m due to the same cable program of the barrier line, and the total number is no less than 4.

(7) In order to determine the fault point of the pressure sensor, in addition to installing the pressure sensor at the starting point, 150~200m away from the starting point, there is another installation. Of course, in the design, economic and technical factors must be considered. In the place where the pressure sensor is not needed, it should not be installed.

(8) Each cable shall be equipped with no less than 4 pressure sensors. The distance between the two pressure sensors near the telephone station shall not be too wide

(9) One branch point of each cable should be installed. If the two branch points are close to each other (less than 100 m), only one branch point can be installed.