In Situ Health Monitoring of Piezoelectric Sensors

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On occasion, anomalies may appear in the highly dynamic test data obtained during rocket engine tests. These incidences are investigated, and a corrective action may be mandated before subsequent engine testing. The appearance of spurious signals of unknown cause is a typical challenge encountered in accelerometer data channels.

To address this issue, an in situ health monitoring apparatus, which includes (1) an exciter circuit that applies a pulse to a piezoelectric transducer and (2) a data processing system that determines the piezoelectric transducer’s dynamic response to the first pulse, was developed.

Speaker Bios:

Scott Jensen

AST Electronics Engineer
NASA’s Stennis Space Center




Dr. Ramona Travis
Chief Technologist
NASA Stennis Space Center (SSC)



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