New from Kistler Instruments is a
single axis, high sensitivity, capacitive
accelerometer for measuring static
acceleration or low-level, lowfrequency
vibration.

The ServoK-Beam accelerometer
has high resolution, good frequency
response and insensitivity to thermal
transients and transverse acceleration
making it suitable for a range of
applications, from modal analysis of
large structures and vehicle dynamics
to measuring seismic effects on
structures during earthquakes and
aerospace ground testing.

The measurement range of ±3g,
wide static and dynamic frequency
response from 0 to 500Hz and ultralow
noise of 4µgrms below 100Hz
are combined with sensitivity of
1200mV/g, high immunity to thermal
transients 1500gpk shock rating and
low transverse acceleration. The three
terminal, variable capacitance sensor
is made by a bulk Micro Electro-
Mechanical System process. Sensing
element and conditioning electronics
are integrated into an hermetically
sealed titanium housing with a mass
of 95g; an anodised housing provides
ground isolation. The unit is
powered by bipolar supply between
±6 and ±12V DC.