Ultrasonic sensor and self diagnostic method of the same
US8020447B2 · kind B2 · utility
4Cited by
2References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 27, 2008 |
| Grant date | Sep 20, 2011 |
| Priority date | — |
| Expiry date | Oct 6, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S2015/939
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
In an ultrasonic sensor, a first receiving device is configured to be sendable and receivable an ultrasonic wave. The ultrasonic wave sent from the first receiving device is transmitted through a vibration-reducing member disposed between the first receiving device and a second receiving device, and the second receiving device detects the ultrasonic wave. The ultrasonic sensor self diagnoses whether the second receiving device is operated without malfunction based on a detection signal of the second receiving device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.