초록 ▼

A turbulence sensor whose signal output is processed to substantially reduce accumulated turbulence signal bandwidth and provide a permanent stored record in which maximum information content is preserved while a minimum of data samples are recorded. Both turbulence energy and turbulence intensity s

A turbulence sensor whose signal output is processed to substantially reduce accumulated turbulence signal bandwidth and provide a permanent stored record in which maximum information content is preserved while a minimum of data samples are recorded. Both turbulence energy and turbulence intensity sensors are disclosed. Aircraft mounting of multiple sensors together with correlation monitoring relating to airframe structural integrity prediction is disclosed. A turbulence energy sensor for ground monitoring of conditions such as wake vortex and wind shear turbulence as well as cyclonic system detection in remote geographic areas is also disclosed. An aircraft turbulence sensor, combining a fast response thermal anemometer airspeed transducer together with a ducted thermal anemometer direction transducer sensing angle-of-attack is disclosed.

대표청구항 ▼

A turbulence sensor comprising: airspeed transducer means sensing airflow against said airspeed transducer means thereby providing a dynamic airspeed signal; bandpass filter means operatively connected to signal output of said airspeed transducer, said filter means defining dynamic signal response f

A turbulence sensor comprising: airspeed transducer means sensing airflow against said airspeed transducer means thereby providing a dynamic airspeed signal; bandpass filter means operatively connected to signal output of said airspeed transducer, said filter means defining dynamic signal response frequency bandwidth for said dynamic airspeed signal thereby providing a turbulence component of said dynamic airspeed signal; low pass filter means operatively connected to signal output of said airspeed transducer, said lowpass filter means limiting response frequency of said dynamic airspeed signal thereby providing a mean airspeed component of said dynamic airspeed signal; analogue-to-digital signal conversion means providing sampled digital representation of said turbulence component and sampled digital representation of said mean airspeed component of said dynamic airspeed signal; root-mean-square digital computation means measuring power in said dynamic airspeed signal turbulence component; digital division means whereby said turbulence component digital power signal is divided by said digitally represented mean airspeed signal thereby providing a digitally represented turbulence intensity signal; digital storage means operatively connected to said division means to store turbulence intensity signal, said digital storage means comprising two sections, a first storage section to accumulate successive samples of computed turbulence intensity for a preset time interval, and a second storage section periodically loaded with an arithmetic total of the value of said samples of turbulence intensity accumulated for said time interval, clearing and resetting said first storage to zero upon each successive loading, with said second storage section comprising non-destructive memory storage means to record turbulence intensity time history for later readout, inspection, and historical review of said airspeed transducer\s long term airstream turbulence exposure; and microprocessor means for control, signal processing and computation of said turbulence intensity signal.