What is a Pressure Cell?
A pressure sensor is a transducer which converts pressure into a measurable electrical output.
Main purpose to use a pressure cell is to measure total stress in various construction fields or the amount of stress being transferred.
The vibrating wire pressure transducer works on the vibrating wire technology to provide a digital output.
Pressure cells are of different type, shapes and size.
How is a Pressure cell used in geotechnical field?
The theology of soil/rock formations is a complicated function of soil/rock type, stress history, shear and normal stress levels, boundary and drainage conditions and many other environmental effects. Accurate assessment of stress in foundation soil/rock formations and changes in it caused by construction and loading is important for good engineering design. In instrumentation schemes for geotechnical or geo-structural study associated with large civil engineering structures like tall buildings, dams, underground tunnels etc., measurement of stress plays a very important part.
Stress fall into two basic categories:
- Measurement of total stress at a point within