The 211B Series are general purpose sensors that measure
transient and repetitive dynamic events in a wide variety
of applications.
The 211B, general purpose, miniature pressure sensors
incorporate acceleration-compensation, high natural
frequency and integral, low impedance Piezotron circuit
electronics. Cable noise is minimized, eliminating need
for highly insulated cables. Contained within the housing
and located behind the diaphragm, is a pair of compression-preloaded
quartz assemblies. Each assembly consists of quartz
plates, interleaved with gold electrodes. The piezoelectric
material of these plates generate a charge proportional
to the force which causes stress. The force can be in
the form of pressure on the diaphragm, vibrating the
diaphragm mass. The acceleration sensitivity of each
assembly is equal to the other but opposite polarity,
thereby, canceling any acceleration effects from the
net charge generated by the assemblies. An internal
microelectronic signal conditioning circuit converts
the net charge into a useable high level voltage output
signal at a low impedance level.
The signal and DC excitation power to the unit are conducted
through a single coaxial cable, such as Series 1761
or 1762, or a standard, two-wire lead. This simple power
signal circuitry makes it possible to easily check the
circuit's integrity. Power and signal processing to
the sensor can be provided by any one of the Series
5100 couplers or by any industry standard voltage mode
IEPE (Integral Electronic Piezoelectric) power supply/coupler.
• Low impedance, voltage mode
• High level voltage signal
• Acceleration compensated
• High natural frequency
• Conforming to CE
Kistler Model
211B Miniature, High Sensitivity, Voltage Output Pressure
Sensor
