Ceramet is a piezoresistive sensor on a ceramic base. It is rugged, corrosion and abrasion resistant which makes it
particularly suitable for industrial OEM applications. These sensors have a wide operating temperature range of -40°C
to 125°C combined with high stability and accuracy. These features make them ideal for process control purposes in
industrial equipment manufacturing and instrumentation.
Ceramet allows direct contact of the fluid with the measuring
cell and is easy to handle. Its small 18 mm diameter allows for easy installation into almost all applications. Sensors for
absolute and relative pressure with ranges from 1 to 400 bar are available.
The piezoresistive effect can be observed in a great
variety of materials. On Ceramet, a special proprietary
piezoresistive material is applied onto a ceramic diaphragm
by using thick film techniques. This gives high sensitivity
and stability over a wide temperature range.
The pressure acts directly on the front face of the
ceramic diaphragm. Therefore, almost any fluid can be
measured because ceramic offers unequaled resistance
against aggressive media. The screen-printed resistors
on the opposite face of the diaphragm are connected
to a Wheatstone bridge. The element, with the diaphragm,
is bonded onto a ceramic base plate. For absolute pressure
sensors, the void between diaphragm and base plate is
under vacuum while for relative pressure, the base plate
has a vent. The output from the bridge is highly linear
and the output signal is proportional to the excitation
voltage.
• Rugged ceramic cell design
• Trimmed zero balance
• Temperature compensated
• Excellent corrosion and abrasion resistance
• Shock and vibration resistant
• Wide operating temperature range
• Easy installation
• Competitive price
• Option - built-in NTC temperature sensor