-
1.
公开(公告)号:US20120290238A1
公开(公告)日:2012-11-15
申请号:US13107042
申请日:2011-05-13
申请人: Rakesh Damodaran Nair , Arulvel Sellamuthu , Nagaraja Sundaresh , Manjunatha Kotreshi Alabur , Amol Kinage , Karthik Giritharan , Ananda Huchappa Shastry
发明人: Rakesh Damodaran Nair , Arulvel Sellamuthu , Nagaraja Sundaresh , Manjunatha Kotreshi Alabur , Amol Kinage , Karthik Giritharan , Ananda Huchappa Shastry
CPC分类号: G01D5/2291 , G01D5/24457
摘要: A method includes measuring a first voltage (VA) across a first sensing coil of a linear variable differential transformer (LVDT) and measuring a second voltage (VB) across a second sensing coil of the LVDT. The method also includes signaling a core fallout condition in response to (i) determining that a ratio of VA and VB is within a specified range of a value of one and (ii) determining that a sum of VA and VB is less than a sum of VA0 and VB0 by more than a specified amount. VA0 and VB0 are minimum voltages across the first and second sensing coils of the LVDT, respectively, when a core of the LVDT is in the LVDT.
摘要翻译: 一种方法包括测量跨越LVDT的第二感测线圈的线性可变差动变压器(LVDT)的第一感测线圈上的第一电压(VA)和测量第二电压(VB)。 该方法还包括响应于(i)确定VA和VB的比值在1的特定范围内并且(ii)确定VA和VB之和小于总和的信号 的VA0和VB0超过指定的量。 当LVDT的核心处于LVDT时,VA0和VB0分别是LVDT的第一和第二感测线圈上的最小电压。
-
2.
公开(公告)号:US08712710B2
公开(公告)日:2014-04-29
申请号:US13107042
申请日:2011-05-13
申请人: Rakesh Damodaran Nair , Arulvel Sellamuthu , Nagaraja Sundaresh , Manjunatha Kotreshi Alabur , Amol Kinage , Karthik Giritharan , Ananda Huchappa Shastry
发明人: Rakesh Damodaran Nair , Arulvel Sellamuthu , Nagaraja Sundaresh , Manjunatha Kotreshi Alabur , Amol Kinage , Karthik Giritharan , Ananda Huchappa Shastry
CPC分类号: G01D5/2291 , G01D5/24457
摘要: A method includes measuring a first voltage (VA) across a first sensing coil of a linear variable differential transformer (LVDT) and measuring a second voltage (VB) across a second sensing coil of the LVDT. The method also includes signaling a core fallout condition in response to (i) determining that a ratio of VA and VB is within a specified range of a value of one and (ii) determining that a sum of VA and VB is less than a sum of VA0 and VB0 by more than a specified amount. VA0 and VB0 are minimum voltages across the first and second sensing coils of the LVDT, respectively, when a core of the LVDT is in the LVDT.
摘要翻译: 一种方法包括测量跨越LVDT的第二感测线圈的线性可变差动变压器(LVDT)的第一感测线圈上的第一电压(VA)和测量第二电压(VB)。 该方法还包括响应于(i)确定VA和VB的比值在1的特定范围内并且(ii)确定VA和VB之和小于总和的信号 的VA0和VB0超过指定的量。 当LVDT的核心处于LVDT时,VA0和VB0分别是LVDT的第一和第二感测线圈上的最小电压。
-