FIELD: aviation.
SUBSTANCE: device comprises fiber-optic strain gauges placed on surfaces of controlled non-rotating parts of swash plate of helicopter, connected to fiber-optic connector, connected by means of fiber-optic cable to recording unit, to which by means of electric data transmission bus there is a panel indicator of stalling phenomena arranged in the cockpit of the pilot. Device further comprises a temperature stabilization unit in the recording unit, each fiber-optic strain sensor has an additional fiber-optic sensitive element, isolated from deformations and enabling temperature compensation of sensor readings, wherein the fiber-optic strain gauges are detachable and are arranged on said monitored parts by means of attachment units which are parts of said monitored parts.
EFFECT: increased repairability of the system and simplified maintenance of the monitored units, increased reliability and accuracy of flow stall detection.
1 cl, 5 dwg
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