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Accelerometer Calibration Workstation
Accelerometer Calibration Workstation

News & Events

December 20, 2010
Calibration Interlaboratory Comparison Program

The Modal Shop, Inc., announces the availability of an Interlaboratory Comparison Program for vibration calibration service providers. Serving the vibration measurement community for over 20 years, The Modal Shop understands the importance of consistent performance and low uncertainty.  The Interlaboratory Comparison Program is designed to help laboratories achieve confidence in vibration calibration results, validate reliable uncertainty levels and meet ISO 17025 certification requirements. 

Interlaboratory Comparison reporting allows metrology centers to compare the results of their systems, practices and processes to others across the world.  With both anonymous participation and blind results, the program withholds participant names and specific information from other report participants.  Any vibration metrology lab may join regardless of the type of calibration system being used.  Participation in a comparison program is frequently required to receive and retain accreditation to standards such as ISO 17025, through institutions such as A2LA, UKAS, ACLASS and PTB.  

After enrolling, the participating accelerometer calibration laboratory receives a comparison accelerometer to calibrate at frequencies ranging from 0.5 to 20k Hz. Results are logged and a report is generated which also includes data from seven additional laboratories. Each laboratory receives a report for use in evaluating the accuracy of measurements and the calibration process.  Leading the worldwide market for accelerometer calibration systems, The Modal Shop is committed to helping laboratories achieve excellence and confidence in vibration metrology.

The Modal Shop, Inc. offers a wide range of systems, services, and programs.  For more information or to join the Interlaboratory Comparison Program, please contact The Modal Shop, Inc., 3149 E. Kemper Road, Cincinnati, OH 45241-1516, Internet:, 800-860-4867, Fax 513-458-2172 or e-mail: