Analysis of Accelerometer Data by Digital Integration

摘要

The Vibration Measurement System (VMS) utilizes accelerometers, charge amplifiers, and data acquisition hardware to process and display vibration data from turbine engine tests. All charge-to-voltage conversion and integration are currently accomplished by the charge amplifiers using analog methods. Digital integration techniques would eliminate the need for the aging charge amplifiers, reducing the requirement for frequent calibrations while improving data quality and overall system reliability. This paper addresses the design challenges encountered in implementing the digital integrator. Also, the results obtained using this new digital integrator are compared to the data acquired using the current analog integrator.