公开(公告)号：US4945231A

公开(公告)日：1990-07-31

申请号：US360191

申请日：1989-06-01

申请人： Hideshi Ohya ,  Takao Miyatani ,  Keiji Kawamura ,  Yasutomo Kawabata

发明人： Hideshi Ohya ,  Takao Miyatani ,  Keiji Kawamura ,  Yasutomo Kawabata

IPC分类号： G01D5/347

CPC分类号： G01D5/34792

摘要： In the compound rotary encoder of this invention, an absolute signal representing the upper m bits of a rotation angle signal, and an icreametal signal used for detecting the lower bits of the rotation angle signal are detected to obtain more detailed rotation angle information. Moreover, the rotation angle obtained by counting the increamental signal closely matches that obtained from the absolute signal, assuring the detection of the rotation angle with high resolution and precision. Since a rotating disk has only m bits of absolute code pattern, the rotary encoder can be small. This permits the absolute code pattern to have greater diametrical width so that a large output of the absolute signal can be stably obtained. On the other hand, the number of rotations can be obtained by counting and compensating a standard position signals. Since the rotary disk has the patterns both for detecting the standard position signal and for detecting the rotation angle, this too allows the rotary encoder to be small.

摘要翻译： 在本发明的复合式旋转编码器中，检测表示旋转角度信号的上位m位的绝对信号，以及用于检测旋转角度信号的低位的前置信号，得到更详细的旋转角度信息。 此外，通过对内切信号进行计数而获得的旋转角度与从绝对信号获得的旋转角度紧密匹配，确保以高分辨率和精度检测旋转角度。 由于旋转盘只有绝对代码模式的m位，所以旋转编码器可以很小。 这允许绝对代码图形具有更大的直径宽度，从而可以稳定地获得绝对信号的大输出。 另一方面，可以通过对标准位置信号进行计数和补偿来获得转数。 由于旋转盘具有用于检测标准位置信号和检测旋转角度的图案，因此也允许旋转编码器小。

公开(公告)号：US06389373B1

公开(公告)日：2002-05-14

申请号：US09350677

申请日：1999-07-12

申请人： Hideshi Ohya

发明人： Hideshi Ohya

IPC分类号： G06F1500

CPC分类号： H03M1/485

摘要： The disclosed system generates resolver reference signal on the basis of the clock of CPU 202. The CPU 202 generates resolver output signal sampling and servo control loop trigger signals in synchronization with its own clock. Thus, the synchronization between the reference signal and the sampling is assured. Because the sampling is constantly performed at a fixed phase point of the reference signal, the sampling accuracy is improved, while stable servo control loop response is obtained because the sampling is also synchronous with servo control loop so that the sampling will not interrupt the servo control loop.

摘要翻译： 所公开的系统基于CPU 202的时钟生成分解器参考信号.CPU 202与其自己的时钟同步地产生分解器输出信号采样和伺服控制环路触发信号。 因此，确保参考信号和采样之间的同步。 由于采样在参考信号的固定相位不断地进行，所以提高采样精度，同时获得稳定的伺服控制环路响应，因为采样也与伺服控制回路同步，使得采样不会中断伺服控制 循环。