摘要:
A reference value (T) is established based on a preceding acceptable speed measurement. Signal means (47-49) signal an acceptable speed measurement when a subsequent speed measurement differs from the reference value by less than a predetermined amount.
摘要:
With the apparatus any acceleration/deceleration in the direction of movement is sensed by a pendulum. Electrical signals derived therefrom are used for solving the differential equation of oscillation of the pendulum for determining the acceleration, velocity and/or the distance covered by the moved body within a desired time period.
摘要:
A tracking and resampling method for monitoring the performance of a rotating machine (10) is disclosed. One or more measuring devices (13) provide rotating machine performance data to a signal processor (14) that samples the performance data at uniform time increments. A digitized waveform of the sampled performance data is interpolated by an interpolation filter. The sampled performance data is convolved with the impulse response of the interpolation filter to provide a continuous time function waveform depicting the rotating machine performance data. The signal processor (14) resamples the continuous time function waveform at uniform rotating shaft phase angle increments.
摘要:
Cet oscillateur est constitué de deux branches parallèles constituées chacune, dans un exemple de réalisation, d'un transistor, d'une résistance et d'une diode de Zéner. Lorsqu'une branche est en déséquilibre par rapport à l'autre, suite par exemple à l'avarie d'un constituant, le transistor reste bloqué quelque soit le niveau de tension émis par le générateur branché à ses bornes d'entrée et de la sorte l'oscillateur ne peut pas démarrer.