发明名称 |
Method and apparatus for piezoelectric sensor status assessment |
摘要 |
A method for assessing the status of a piezoelectric sensor of interest is disclosed. The sensor of interest is located adjacent a surface of a mattress supporting a person. In some instances, the sensor of interest may be coupled to a mattress or coupled to a bed frame that supports the mattress. The method involves analyzing the complex impedance of the excited sensor relative to a complex impedance profile. A system for implementing the method is also disclosed. |
申请公布号 |
US8217667(B2) |
申请公布日期 |
2012.07.10 |
申请号 |
US20090355240 |
申请日期 |
2009.01.16 |
申请人 |
RILEY CARL WILLIAM;HILL-ROM SERVICES, INC. |
发明人 |
RILEY CARL WILLIAM |
分类号 |
G01R27/08 |
主分类号 |
G01R27/08 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|