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Often used to monitor critical helicopter gearboxes, HUMS is also increasingly used to monitor gas turbines – both in helicopters and in certain fixed-wing aircraft. HBK supplies a range of extremely robust and reliable HUMS sensor solutions. 

Health and usage monitoring systems (HUMS) are being used more frequently in monitoring critical helicopter gearboxes and also, increasingly, for gas-turbines – both in helicopters and in certain fixed-wing aircraft.

Vibration monitoring is a well-proven method for preventing catastrophic failures of rotating components, with the piezoelectric accelerometer proving to be the best sensor for these applications

HUMS accelerometers typically have very specialized performance and reliability requirements. Strict development and production standards such as AS/EN 9100 and environmental standards, such as DO-160 ‘Environmental Conditions and Test Procedures for Airborne Equipment’ must be adhered to, together with aircraft-specific requirements.

System Suggestion

Health and usage monitoring systems (HUMS) system overview

HBK supplies a range of HUMS and engine-monitoring accelerometers, whose design is focused on guaranteeing a highly robust and highly reliable sensor. Sensors must operate continuously in demanding environmental conditions yet be sensitive enough to be able to detect incipient bearing and gear failures. Size and ease of mounting are equally important considerations for these applications

TYPE 4511-001

Helicopter Gearbox CCLD Accelerometer

CCLD Accelerometer is specifically designed for flight-test applications, such as the helicopter gearbox, and delivers reliable measurement in harsh environments.

TYPE 4523

HUMS Piezoelectric Accelerometer 

Piezoelectric Accelerometer Type 4523 is specifically designed for Health Usage Monitoring of gearboxes on helicopters. 

TYPE 8345

Triaxial CCLD Accelerometer

Designed to operate in harsh environments with a robust 4-pin Glenair® 800-series connector for industrial applications.