9001cc金沙以诚为本

Rugged, Stainless steel or Titanium construction and safe, the FOP piezometer is suitable for use in long term reliability.

Description

Our unique design is based on non-contact deflection measurement of a stainless steel diaphragm, as opposed to more conventional measurement techniques.
The pressure transducer is based on Fabry-Perot interferometry.
Pressure creates a variation in the length of a Fabry-Perot cavity consisting of the inner surface of the stainless steel diaphragm on one side and of an optical fiber on the other.
Since fiber optic readout units and dataloggers can consistently and accurately measure the cavity length under all conditions of temperature, EMI, humidity and vibration, the system delivers reliable pressure measurements in the most adverse conditions.
The mechanical robustness is assured by the all-welded stainless steel construction, with no epoxy, sealing rubber or other sort of polymeric material.

Five models of FOP piezometers are available:

• FOP
  Designed to be embedded in earth fills, at concrete/earth interfaces or inserted into boreholes and small-diameter pipes.
  The end of the FOP is fitted with a high or low air entry filter, which protects the sensing element from solid particles, allowing this model to sense only the fluid pressure to be measured.
  The filter is easily removable for saturation.

• FOP-F
  A thick-wall version of the FOP for use in direct burial applications.

• FOP-Ti
  The same as above, but in Titanium, for highly corrosive environment.

• FOP-C
  Provided with a pipe thread adapter enabling the piezometer to be used as a pressure transducer.

• FOP-P
  Designed to be driven into unconsolidated fine grain materials such as sand, silt or clay.
  The external housing is a thick-wall cylinder fitted with a conical shoe at one end and an EW drill rod or standpipe thread adapter at the cable entry end.

Key Features

• Rugged stainless steel construction for harsh environments

• Available in Titanium

• Immune to EMI/RFI/Lightning

• Accuracy of ±0.25% F.S.

• Long-term reliability

• Intrinsically safe

• High resolution

Applications

• Embankments and backfill

• Dams

• Foundations (seepage and uplift)

• Natural and cut slopes

• Excavations

• Retaining walls, piles, culverts and tunnel linings

• Waste disposal sites

• Highly corrosive environments (Titanium version)

For detailed specification, please contact EPC!