High resolution acoustic pulse-echo ranging system
US5260910A · kind A · utility
13Cited by
5References
5Claims
0Family size
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Inventor
Key dates
| Filing date | Oct 15, 1992 |
| Grant date | Nov 9, 1993 |
| Priority date | — |
| Expiry date | Oct 15, 2012 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S367/90
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The uncertainty inherent in high-resolution acoustic pulse-echo distance measuring systems which depend on threshold detection is overcome by transmitting a multi-cycle shot of acoustic energy having a sharply peaked amplitude profile, and locating the peak amplitude of a received echo. The peaked amplitude is achieved by timing the duration of energization of a transducer producing the shot so that energization is terminated before the amplitude of oscillation of the transducer has reached a maximum. This produces a shot which has a definite largest cycle, which should in turn produce an echo having a definite largest cycle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.