Endevco Commercial Automated Accelerometer Calibration System

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The Endevco Commercial Automated Accelerometer Calibration System (CAACS) provides traceable NIST calibration for most types of accelerometers, whether self-generating piezoelectric, or accelerometers requiring external voltage or current excitation. Output signals can be charge or voltage, single-ended or differential, AC or DC coupled, and either isolated or grounded.

Four excitation sources can be controlled, including a pneumatically-driven exciter for vibration shock measurements and a high or low frequency shaker for vibration measurements. Test configurations and test data are stored and managed using a Microsoft Access database. Tests may be automatically set up by recalling a particular test definition file which is specific to each transducer model. No operator adjustments are then required for adjusting the particular gain, grounding, vibration levels or other parameters specific to the test to be run. Computer control assists in eliminating operator error, enhances repeatability, and ensures optimum signal-to-noise ratio and calibration accuracy.

The product can calibrate to a vibration frequency range of 0.5 Hz to 40 kHz and shock calibration for 20 to 10,000 g. It can be used for the calibration of PE, IEPE, PR, VC, servo accelerometers and velocity transducers, and provides electrical self-calibration. It is compliant with ANSI/NCSL Z540-1-1994, ISO 9000 and ISO/IEC 17025-2005.