Patent ID: 9211961
Filing Date: 2015-12-15
Classification: B60T,B64G,G01D,G01L,G01M,G01P,G05B

Abstract:
1. A system for detecting and isolating faults in pressure ports and pressure transducers of a pressure sensing system of a Flush Air Data System (FADS), comprising: a plurality of pressure ports flushed to a nose cap of a space vehicle in crucifix form; at least three pressure transducers connected to each pressure port through a plurality of pneumatic tubes for measuring surface pressure from said plurality of pressure ports; at least one power supplying unit separately connected to said at least three pressure transducers for powering said at least three pressure transducers at each pressure port; and a processing unit configured to acquire voltage inputs corresponding to the measured surface pressure from said at least three pressure transducers, wherein said processing unit executes one or more levels of fault checking to detect and isolate pressure transducer failures and blockage of said plurality of pressure ports based on the voltage inputs.