Method of sensing degradation of piezoelectric actuators
US9457560B2 · kind B2 · utility
5Cited by
12References
8Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Sep 24, 2014 |
| Grant date | Oct 4, 2016 |
| Priority date | — |
| Expiry date | Sep 24, 2034 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2002/14354
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Systems and methods for sensing degradation of a piezoelectric actuator in a print head. One or more electrical pulses may be transmitted to the piezoelectric actuator that cause the piezoelectric actuator to bend, thereby creating a pressure wave. The pressure wave may be sensed and converted into an electrical signal. The electrical signal may be compared to a reference signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.