SAE AS5391A-2022 PDF

Scope: Accelerometers are transducers, or sensors, that convert acceleration into an electrical signal that can be used for airframe, drive, and propulsion system vibration monitoring and analysis within vehicle health and usage monitoring systems. This document defines interface requirements for accelerometers and associated interfacing electronics for use in a helicopter Health and Usage Monitoring System (HUMS). The purpose is to standardize the accelerometer-to-electronics interface with the intent of increasing interchangeability among HUMS sensors/systems and reducing the cost of HUMS accelerometers. Although this interface was specified with an internally amplified piezoelectric accelerometer in mind for Airframe and Drive Train accelerometers, this does not preclude the use of piezoelectric accelerometer with remote charge amplifier or any other sensor technology that meets the requirements given in this specification.

SAE AS5391A-2022 history

2022 SAE AS5391A-2022 Helicopter Health and Usage Monitoring System Accelerometer Interface Specification
2016 SAE AS5391A-2016 Helicopter Health and Usage Monitoring System Accelerometer Interface Specification
2002 SAE AS5391-2002 Health and Usage Monitoring System Accelerometer Interface Specification