公开(公告)号：US20060153453A1

公开(公告)日：2006-07-13

申请号：US11033337

申请日：2005-01-11

申请人： Robin Thurgood ,  Gerald Ulbrich ,  Michael George ,  Robert Warner

发明人： Robin Thurgood ,  Gerald Ulbrich ,  Michael George ,  Robert Warner

IPC分类号： G06K9/34

CPC分类号： G06K9/00496 ,  G01V8/12

摘要： A system and device are provided for detecting an article comprising a detecting portion adapted to receive a gate signal and generate values from optical characteristics of the gate signal, a trend determining portion adapted to identify a trend in the values, and an article passage identifying portion adapted to identify a passage of at least one article passing through at least a portion of the gate signal based on at least one change in trend of the trend determining portion.

摘要翻译： 提供了一种用于检测物品的系统和装置，所述物品包括适于接收门信号的检测部分并且从所述门信号的光学特性产生值，适合于识别所述值的趋势的趋势确定部分和物品通道识别部分 适于基于所述趋势确定部分的趋势的至少一个变化来识别穿过所述门信号的至少一部分的至少一个物品的通道。

公开(公告)号：US4649341A

公开(公告)日：1987-03-10

申请号：US602840

申请日：1984-04-23

申请人： Gerald Ulbrich ,  Detlev Neuhaus

发明人： Gerald Ulbrich ,  Detlev Neuhaus

IPC分类号： G01B7/02 ,  G01D3/02 ,  G01D5/20 ,  G01L9/10 ,  G01R27/26 ,  G01B7/14

CPC分类号： G01L9/10 ,  G01B7/02 ,  G01D3/02 ,  G01D5/2013 ,  G01R27/2611

摘要： An arrangement for determining the position of a core within a coil improves a voltage across the coil upon generation of an initiating voltage pulse. The initiating voltage pulse can originate from a microprocessor or other electrical timing logic circuit. The charging current in the coil is developed from this initiated time until either a predetermined current level is reached in one embodiment or a predetermined time duration is reached in another embodiment. A microprocessor or other electrical measuring circuit measures either the time duration to reach the predetermined current level or the discharge time following current charging for the predetermined time duration. A microprocessor or other electrical logic circuit derives the core position from the measured time to reach the predetermined current level or the measured discharge time following current charging for the predetermined time duration. A switching element interrupts the charging of the coil before the current can reach a peak level, such timing measurement thereby occurring during the approximately linear portion of the inductive current charging curve.

摘要翻译： 用于确定线圈内的线圈的位置的布置在产生起动电压脉冲时改善线圈两端的电压。 启动电压脉冲可以来自微处理器或其他电定时逻辑电路。 线圈中的充电电流从该起始时间开始，直到在一个实施例中达到预定电流电平或者在另一个实施例中达到预定持续时间。 微处理器或其他电测量电路测量达到预定电流电平的持续时间或在预定持续时间内的电流充电之后的放电时间。 微处理器或其他电逻辑电路从测量的时间得到核心位置，以达到预定电流水平或在预定持续时间之后的电流充电之后测量的放电时间。 在电流达到峰值电平之前，开关元件中断线圈的充电，这样的定时测量从而在感应电流充电曲线的大致线性部分期间发生。