Fiber optic Fabry-Perot sensor for machinery monitoring

Abstract

This paper introduces the application of commercial FFPI (Fiber Fabry-Perot Interferometer) sensors to harsh environmental machinery monitoring (temperature up to 400°C). Examples of dynamic pressure, temperature, vibration, rotational speed and bearing condition in engine, pump and bearing application with the multi-sensor operation (same or combination of different kinds of parameters monitoring up to 24 channels) are demonstrated.