专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US5235181A Absolute position detector for an apparatus for measuring linear angular values 失效
标题翻译：用于测量线性角度值的装置的绝对位置检测器
公开(公告)号：US5235181A
公开(公告)日：1993-08-10
申请号：US804769
申请日：1991-12-09
申请人： Miroslav Durana , Roland Gallay , Philippe Robert
发明人： Miroslav Durana , Roland Gallay , Philippe Robert
IPC分类号： G01D5/36
CPC分类号： G01D5/36
摘要： The detector comprises an optoelectronic sensing unit (3) and a transparent rule (2) having two parallel graduation tracks (4, 5). One track (5) has incremental graduation of constant step and the other track (4) has pseudo-random graduation forming binary coding bits constituting a continuous sequence of words which are different from each other, the width of a bit being a function of the step of the incremental graduation. The incremental track (5) is read through a sensing graticule (9) by photodetectors (8) which are 90 electrical degrees out of phase in order to permit an interpolation in the step of said track. The track (4) with pseudo-random graduation is read by a CCD detector (11) through an image-enlarging lens (13). The signals generated are processed by circuits (15a, 15b) which assure the combining of the information taken from the two tracks of the rule.
摘要翻译：检测器包括光电感测单元（3）和具有两个平行的刻度轨道（4,5）的透明规则（2）。一个轨道（5）具有恒定步长的递增刻度，另一个轨迹（4）具有构成彼此不同的连续字序列的伪随机分级形成二进制编码位，位的宽度是递增毕业的一步。通过光电探测器（8）通过感测刻度（9）读取增量轨迹（5），该光电探测器（8）相差90°，以便允许在所述轨道的步骤中进行内插。具有伪随机刻度的轨道（4）由CCD检测器（11）通过图像放大透镜（13）读取。产生的信号由电路（15a，15b）处理，确保从规则的两条轨道获得的信息的组合。

IPRDB

热门服务

关于我们

友情链接

联系方式