
基本信息:
- 专利标题: 具有到多个谐振传感器的单通道接口的电感式位置感测
- 申请号:CN201480045612.0 申请日:2014-09-16
- 公开(公告)号:CN105452884B 公开(公告)日:2019-06-14
- 发明人: 乔纳森·V·鲍德温 , 穆拉利·斯里尼瓦萨
- 申请人: 德州仪器公司
- 申请人地址: 美国德克萨斯州
- 专利权人: 德州仪器公司
- 当前专利权人: 德州仪器公司
- 当前专利权人地址: 美国德克萨斯州
- 代理机构: 北京律盟知识产权代理有限责任公司
- 代理人: 林斯凯
- 优先权: 61/878,443 2013.09.16 US
- 国际申请: PCT/US2014/055948 2014.09.16
- 国际公布: WO2015/039134 EN 2015.03.19
- 进入国家日期: 2016-02-17
- 主分类号: G01R27/00
- IPC分类号: G01R27/00
An inductive sensing system includes multiple resonant sensors interfaced to an inductance-to-digital conversion (IDC) unit through a single channel interface. IDC establishes an IDC control loop that incorporates resonant sensors as loop filters. The IDC control loop drives resonant sensors to a system resonance state in which each resonant sensor is driven to a resonant frequency state. Each resonant sensor is configured for a nominal resonant frequency state that differentiates it from the other resonant sensors. IDC senses changes in system resonance state representative of target-sensing conditions, and responds by driving a target-sensing system resonance state. IDC converts IDC loop (resonance) control signals resulting from a target-sensing condition into sensor data as representing the corresponding target-sensing resonant frequency state as an indication of target position (proximity or range) relative to a target-sensing resonant sensor. The sensor data can be provided to a data processor for proximity/range processing.
公开/授权文献:
- CN105452884A 具有到多个谐振传感器的单通道接口的电感式位置感测 公开/授权日:2016-03-30
IPC结构图谱:
G | 物理 |
--G01 | 测量;测试 |
----G01R | 测量电变量;测量磁变量(通过转换成电变量对任何种类的物理变量进行测量参见G01类名下的 |
------G01R27/00 | 测量电阻、电抗、阻抗或其派生特性的装置 |