Tech Transfer eNews Blog

Purdue researchers develop engine monitoring device based on electrocardiograms


By Jesse Schwartz
Published: April 7th, 2021

Researchers at Purdue University have developed a turbine engine monitoring device based on the medical devices used to monitor heart rhythms.

The technology monitors rhythms in gas turbine engines and warns of potential compressor stall, using sensors to record the data during operation. The device then uses a novel signal processing procedure to determine the engine’s status.

The Purdue researchers designed the device to be similar to an electrocardiogram. According to lead researcher Nicole Key, “like a heart attack in humans, compressor stall can happen without apparent precursors.”

“It is hard to identify the small disturbances associated with compressor stall from the ones associated with turbulent flow,” explains Fangyuan Lou, a researcher in Key’s lab. “When evident precursors occur, the gas turbine engine runs into stall within a few milliseconds. That is not enough warning time for action.”

Key adds that “an effective stall warning and avoidance technique is of great value to gas turbine engines used in aviation and land-based applications.”

The researchers worked with the Purdue Research Foundation Office of Technology Commercialization (OTC) to patent the technology. They are now looking for partners to continue developing the stall detection system.

Source: Purdue Research Foundation News

Posted under: Tech Transfer e-News

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