Sentence examples for pass frequency from inspiring English sources
In recent years, hub active vibration control (HAVC) technologies have been developed to attenuate blade pass frequency vibration on helicopters.
The feedback controller was implemented in real-time to show the effectiveness of periodic blade pass frequency sound reduction.
It is characterized by competition between the second resonance of the bearing and the ball pass frequency.
Alternance of period doubling and tripling has been noticed, as the ball pass frequency is around the first resonance of the bearing.
WT-based denoising's decomposition level is 2. The LCD filter is a 128 order low-pass FIR filter with 8 Hz pass frequency and 10 Hz stop frequency.
The theoretical rotational frequency f r of the shaft is 30 Hz and ball pass frequency in inner race (BPFI) is 163 Hz.
Certain filters pass frequencies below a certain frequency while attenuating all frequencies above it, others pass all frequencies above a certain frequency while attenuating all frequencies below it.
The ENG amplifying system was designed to amplify the ENGs 100 000 times and to pass frequencies of between 500 and 10 kHz.
Currently, mainly manually-engineered features, such as the ball pass frequencies of the raceway, RMS, kurtosis an crest, are used for automatic fault detection.
Low-pass waveguide filters do not pass frequencies all the way down to zero because of the waveguide cutoff effect.
Afterwards the difference between the two high pass frequencies was calculated, giving the frequency shift ΔF.
