The
measuring mats come in various sizes, sensor configurations
and force ranges. The analyzers vary from small
portable 16x16 sensor-matrix types to large 112x112
sensor matrix types with a wide range of options,
such as master-slave synchronisation of several
systems, dynamic amplification control and many
other.
The
calibration device can be used at any time to verify
the quality of the measuring results. It uses homogeneous
air pressure on all sensors through increasing steps
of pressure. Thus an individual calibration curve
for each sensor can be calculated.
The
software operates in a Windows environment and contains
many useful methods of data collection and scientific
analysis of dynamic pressure. It also allows continuous
memory of data. The system can work with PC's via
the RS232 interface. Notebook computers or even
pocket PC´s can be used for mobile tests.
As
in all physical measuring systems the most important
part is the sensor technology. pliance works with
capacitive transducers in a matrix configuration.
Because of the elasticity of the sensor mats they
adapt perfectly to 3-dimensional deformations. The
force transducing elements contain high-tech elastomers
manufactured by novel. Restoring force, range of
force, threshold, hysteresis, temperature effect,
frequency response and other characteristics are
determined during the manufacturing process. This
makes it possible to adapt the sensor characteristic
to the measuring application.
Together with the mat, the quality of electronic
circuitry is also important. Particularly, the stability
of the analog amplifiers, the type of signal conditioning
and the processing algorithms can dramatically influence
the accuracy of the system.
novel
developed a new analyser technology that allows
not only individual calibration curves for each
sensor, but also individual dynamic amplification
control and cross talk suppression, resulting in
very accurate and reproducible pressure values.
Physiological artifacts that always occur in seat
measuring are no longer hidden by technical artifacts.
can be connected to any PC simply via RS 232
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