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Kistler has introduced a range of high-sensitivity, low-noise MEMS capacitive accelerometers designed to support single-axis and triaxial measurement requirements within automotive, aerospace, civil engineering, OEM, research and development and in-laboratory test applications.

The K-Beam accelerometers are available in four models of either single-axis (Type 8315A) or triaxial (Type 8395A) versions and incorporate a MEMS variable capacitance sensing element, consisting of a small inertial mass and flexure component sandwiched between two parallel plates or electrodes.

As the mass deflects under acceleration, the capacitance between the sensing element and the plates changes; this is then converted to a proportional voltage by the internal analogue signal conditioner.

Key specifications

  • K-Beam range is available from ±2g to ±200g and with a frequency response from DC to 1,000Hz
  • All units are claimed to offer excellent thermal stability and reliability over an operating temperature range of -65°F to +250°F (-55°C to +125°C), with 6,000g pk shock survivability
  • Type 8315A single-axis version features a 1in (25.4mm) footprint and is powered by a single wide-range supply between 6VDC and 50VDC
  • Six available Type 8315A models are offered with three housing and electrical interface options (AC, TA, TB), which determine available output signal formats
  • Type 8395A triaxial version, also powered by a single wide-range supply between 6VDC and 50VDC, is designed to simultaneously measure acceleration and low-frequency vibration in three mutually perpendicular axes (X, Y and Z), with a compact design that occupies a 0.85in (21.6mm)-cube footprint
  • Output format of the Type 8395A series is bipolar at 0±4V and provides a high-sensitivity, low-noise signal

Kistler Instruments

Established in Winterthur (Switzerland) in 1957, the Kistler Group now has a worldwide presence with 23 group companies and 30 distributors ensuring prompt, local application support and short delivery times. With a staff of more than 1,000, the Kistler Group is one of the world’s leading providers of dynamic measuring instrumentation.

Kistler’s core competence is the development, production and use of sensors for measuring pressure, force and acceleration.  Kistler’s know-how and electronic systems can be used to prepare measuring signals for use in analyzing physical processes, controlling and optimizing industrial processes, improving product quality in manufacturing and improving performance in sports and rehabilitation.

Kistler offers a comprehensive range of sensors and systems for engine development, automotive engineering, plastics and metal processing, installation technology and biomechanics.

Heavy investment in research and development, 15% of staff worldwide are engaged in research and development, has generated a number of innovations using piezoelectric, piezoresistive and capacitive techniques to provide solutions to numerous force, pressure and acceleration measuring problems. These innovations include the world’s first commercial quartz sensor, two-wire constant current technology to integrate sensors with microelectronic circuitry, high-temperature pressure sensors for use up to 400 Deg C and three-component force measuring sensors.

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