MTS Model 286-31 Transient Permeability Pore Pressure Intensifier - Manual (Page 10)

286.31 Transient Permeability Pore Pressure Intensifier 10
How the Pressure Intensifier Works
Introduction
How the Pressure Intensifier Works
The 286.31’s Pressure Intensifier develops the 10,000 psi (69 MPa) pressures
applied to your specimen. The pressure transformer is the part of the Intensifier
that develops this pressure.
The pressure transformer’s principle: low pressure applied to a large area
produces a large force. Apply this force over a smaller area and you will produce
a higher pressure.
The hydraulic power supply forces hydraulic fluid into the transformer’s low
pressure input side. The resulting force (F) is the product of the supply side’s
large piston area (A
1
) multiplied by the pressure of the hydraulic fluid from the
HPS (P
1
):
The force produced (F) transfers to the fluid in the output side. The resulting
pressure (P2) is the product of the force (F) divided by the output side’s smaller
piston area (A
2
):
F A
1
P
1
×
=
P
2
F
A
2
------ =