|
|
| |
| |
|
GDS ADVDPC |
| |
|
What is it? |
|
|
|
The GDS Advanced Pressure/Volume Controller
(ADVDPC) is a microprocessor-controlled screw pump for the
precise regulation and measurement of fluid pressure and volume
change. As a standard research device in commercial and teaching
soil mechanics laboratories, it offers the highest level of
accuracy, resolution and control. The ADVDPC may be used with water,
oil or air. |
|
|
 |
|
|
|
|
|
| What are its
uses |
| |
In stand-alone mode, the ADVDPC is a constant pressure source which
can replace traditional laboratory pressure sources such as mercury
column, compressed air, pumped oil and dead weight devices. It is
also a volume change gauge resolving to 1 cu mm.
Accordingly, the ADVDPC can be used in the geotechnical laboratory
as a general-purpose source of water pressure as well as a volume
change gauge. For example, the device is ideal as a back pressure
source where it can also measure the change in volume of the test
specimen.
For unsaturated soil testing, the fluid in the cylinder is air. Air
pressure is precisely regulated under closed-loop control. In
addition, air volume change is measured to 1 cu mm.
In addition, the instrument can be programmed through its own
control panel to RAMP and CYCLE pressure or volume change linearly
with respect to time. This means the device is also ideal for
permeability testing by constant rate of flow or constant head.
Above all, the device has its own computer interface and can be
controlled directly from a computer. Thus, the ADVDPC is the
essential link between computer and test cell in GDS
computer-controlled testing systems as well as in
computer-controlled testing systems of your own devising. |
| |
|
|
|
|
|
|
|
|
| GDS
Instruments is an ISO 9001:2000 credited company. |
| |
|
|
