Ultrasonic sensor and obstruction detector having accurate obstruction detection capabilities
US6085592A · kind A · utility
13Cited by
8References
42Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 14, 1997 |
| Grant date | Jul 11, 2000 |
| Priority date | — |
| Expiry date | Oct 14, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S367/909
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A short ring is mounted onto a back part of a housing of an ultrasonic sensor so that the short ring is coaxial with the housing. The width of the short ring along the axial direction of the housing is set such that it shields the back part of the housing including a transformer of a processor. The short ring is made up of an excellent metal conductor and is coaxial with the coils of the transformer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.