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    • 1. 发明申请
    • PROCESS AND DEVICE FOR DETERMINING THE ANGULAR POSITION OF A ROTATING SHAFT
    • 方法和设备求取角度位置的旋转轴
    • WO1996019712A1
    • 1996-06-27
    • PCT/EP1995005026
    • 1995-12-19
    • AB ELEKTRONIK GMBHPAPE, Peter
    • AB ELEKTRONIK GMBH
    • G01D05/14
    • F02D41/28G01D5/145G01P13/00
    • To determine the angular position of a rotating shaft starting from a standstill and going up to the highest permissible nominal speed and to suppress noise pulses in the square pulse sequence curve precisely corresponding to the tooth flank positions, a magnetic flux density signal received by a Hall cell (1) is compared with a threshold value signal (DC-TH) in a standstill output unit (2) and a standstill output signal (AS'') is produced. In addition, the magnetic flux density curve recorded by the first Hall cell (1) is compared with the magnetic flux density curve recorded by another Hall cell (1) and from that a window signal unit (5) generates a window signal (5) consisting of a sequence of pulses having a period that is approximately equal to a square pulse length. A static output signal (AS') is produced from the falling flank of the first pulse and the falling flanks of the subsequent pulses. The standstill output signal (AS''), the static output signal (AS'), the window signal (FS) and a square pulse sequence (ASR) generated in a dynamic selection circuit (3) connected to the Hall sensor unit (1) are input into an output circuit (6).
    • 用于检测旋转轴的角位置,从静止状态开始的最大可允许的额定速度和用于抑制干扰脉冲在齿侧面位置中的一个完全对应的矩形脉冲序列所产生的曲线是由霍尔元件(1)记录在与阈值信号的磁通密度信号(DC TH)相比于静止输出单元(2)和形成的静止输出信号(AS“”)。 与通过另一霍尔元件(1)的磁通密度拾取的磁通密度的过程和导致窗口信号单元(5)由(1)记录,它由一个序列的一个窗口信号(FS)的过程中,第一霍尔元件也比较 是具有周期持续时间等于大约一个方波脉冲长度的脉冲。 从第一脉冲的下降沿,并产生一个静态的输出信号(AS“)中的后续脉冲的下降沿。 静止输出信号(AS'),静态输出信号(AS“),该窗口信号(FS)和矩形脉冲序列(ASR),在动态选择电路(3),其连接到所述霍尔传感器单元(1)产生的,在 输出电路(6)的输入。
    • 2. 发明申请
    • METHOD AND DEVICE FOR DETERMINING THE POSITION OF ROTATING SHAFTS
    • 方法和设备,用来确定旋转轴的位置
    • WO1995016896A1
    • 1995-06-22
    • PCT/EP1994004140
    • 1994-12-14
    • AB ELEKTRONIK GMBHPAPE, Peter
    • AB ELEKTRONIK GMBH
    • G01D05/14
    • G01D1/10G01B7/30G01D1/04G01D5/147G01P3/481
    • The device proposed comprises a Hall sensor (101) with an associated magnet (102), a pulse-generation wheel (104) rotating at an angular speed w and fitted with teeth having a rising and falling face, the wheel turning in front of the sensor to generate a curve which corresponds exactly to the tooth-face positions and which can be used to determine precisely the position of the rotating shaft. The Hall sensor (101) registers the variation with time of the magnetic flux density through the pulse-generation wheel (104) as a Hall voltage signal. This signal is converted by a differentiator circuit (103.2) into a differentiated signal. The maxima and minima of the differentiated signal are determined and a digital output signal (AS) is generated from the differentiated signal, the low-level to high-level transitions in the output signal corresponding to the maxima of the differentiated signal and the high-level to low-level transitions corresponding to the minima.
    • 为了产生完全对应曲线的齿面位置中的一个,与旋转轴的精确位置检测是可能的,被移动与相关联的磁体(102)是一个Impulrad(104)的角速度W的霍尔传感器元件的前面(101)设置有齿, 具有上升和下降侧翼。 霍尔传感器元件(101)通过对霍尔电压信号中的脉冲轮(104)负责的磁通密度的时间进程的。 在该信号的一个微分器(103.2)被转换成差分信号。 的微分信号的最大值和最小值被确定并从数字输出信号(AS)产生的区别的信号,其中从低电平到高电平,最大值的过渡和转变从高电平到低电平时,最小值 反映分化信号。