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The Type 8921B02 portable reference shaker from Kistler has selectable frequency and amplitude vibration combined with battery operation to allow the sensitivity of accelerometers to be verified and calibrated with precision in the field and the laboratory.

Type 8921B02 shaker

The compact shaker is designed to provide an accurate, controlled vibration level to verify the sensitivity of vibration sensors or a complete measuring system. The internal control and excitation system provides a series of seven precise, selectable frequencies, while a closed-loop control maintains the selected amplitude independent of the mass of the test article. Front-panel indicators show the selected frequency, amplitude and battery condition. Should the test article exceed the capacity of the shaker, the unit provides an audible and visual warning to the operator.

The unit is rugged and is claimed to provide years of reliable operation in both factory and laboratory environments.

Key features and benefits

  • The Type 8921B02 measures only 100mm in width, 100mm in depth and 120mm in height; it weighs 2.2 kg, including the self-contained, rechargeable battery. 
  • The internal battery can power the shaker for up to approximately five hours before needing to be recharged.
  • To protect the battery from accidental discharge, the power is switched off automatically after a period of continuous operation, which is operator selectable from one to 30 minutes.
  • The Type 8921B02 shaker has sufficient power to test every type of sensor from the smallest laboratory accelerometer to large industrial sensors.
  • The reference shaker can be used to confirm the sensitivity of acceleration, velocity and displacement sensors.
  • It provides an accurate method of testing the integrity of a vibration measurement system from end to end.

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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