Kistler Model 4053A Piezoresistive Relative Pressure Sensors
The piezoresistive pressure sensors measure static and
dynamic relative pressures. They are distinguished by
high output voltage, good linearity and stability together
with small dimensions. Very dynamic measurements are
also possible as a result of their high natural frequency.
The pressure acts via a thin steel diaphragm and a cushion
of oil on a silicon measuring cell. The reference pressure
(only gases) is applied to the other side of the measuring
cell via a hose stem, which can also be removed. The
measuring cell contains diffused piezoresistive resistance's,
which are connected to form a Wheatstone bridge. The
effect of a differential pressure unbalances the measuring
bridge and an output signal of 500 mV is produced over
the full measuring range.
The thermal effects are largely compensated by the connection of integral
resistors. The sensor is ground insulated.
• Built-in temperature compensation
• High natural frequency
• Measurement relative to reference pressure
The piezoresistive pressure sensors measure static and
dynamic relative pressures. They are distinguished by
high output voltage, good linearity and stability together
with small dimensions. Very dynamic measurements are
also possible as a result of their high natural frequency.
