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HM-1 Integrated Vehicle Health Management Committee
AS5391A - Health and Usage Monitoring System Accelerometer Interface Specification
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Rhonda D. Walthall
Health and Usage Monitoring System Accelerometer Interface Specification
Accelerometers are transducers, or sensors, that convert acceleration into an electrical signal which can be used for vibration monitoring and analysis. 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, this does not preclude the use of any other sensor technology that meets the requirements given in this specification. These SAE HUMS Interface Specifications include the minimal interface and performance requirements for interoperability with the Rotorcraft Industry Technology Association (RITA) compliant HUMS. Compliance with these Interface Specifications can be referenced in more comprehensive procurement and device specifications.
Updates to reflect advancements and lesson learned from implementation of Health and Usage Monitoring systems are required.
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