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US 6,601,464 B1Granted
Particle momentum sensor
OwnerJohn P. Downing, Jr.inventor
Life of this patent
Estimating the term…
Abstract
A particle momentum detector has a massive support with a flat surface on which is mounted a piezoelectric member supporting a flat low mass plate resistant to deformation by impinging particles. The low mass plate has a rigidity suppressing multiple mode vibration of the plate. The piezoelectric member generates a damped oscillating electrical signal when a particle impinges upon the plate. A circuit integrates a portion, such as the first half cycle, of the damped oscillating electrical signal to determine momentum of the particle.
Claims19
A particle momentum sensor comprising:
- a massive support having a flat surface;
- a flat plate resistant to deformation by impinging particles and having a rigidity suppressing multiple mode vibration of the plate
- said massive support having a mass substantially greater than the mass of said flat plate;
- a piezoelectric member mounted between the plate and the flat surface of the support for generating a damped oscillating electrical signal when a particle impinges upon the plate;
- and
- means for integrating a portion of the damped oscillating electrical signal to determine momentum of the particle.
3 more elements
A particle momentum sensor comprising:
- a massive support having a flat surface;
- a flat low mass plate resistant to deformation by impinging particles and having a rigidity suppressing multiple mode vibration of the plate;
- a piezoelectric member mounted between the plate and the flat surface of the support for generating a damped oscillating electrical signal when a particle impinges upon the plate;
- the mass of the support being generally greater than 10 times the mass of the plate;
- and
- means for integrating a portion of the damped oscillating electrical signal to determine momentum of the particle.
3 more elements
Dependencies are inferred from the claim text.