公开(公告)号：US5471054A

公开(公告)日：1995-11-28

申请号：US951221

申请日：1992-09-25

申请人： Asao Watanabe

发明人： Asao Watanabe

IPC分类号： G01D5/244 ,  G01D5/245 ,  G01D5/347 ,  G01D18/00 ,  G01P1/04 ,  G01P3/486 ,  G01P3/488 ,  G01D5/34

CPC分类号： G01D5/24452 ,  G01D18/008 ,  G01D5/2449 ,  G01D5/2451 ,  G01D5/347 ,  G01P1/04 ,  G01P3/486 ,  G01P3/488

摘要： A scale comprising a regular arrangement of optically or magnetically different response characteristics such as light reflection and light diffusion portions or light reflection and absorption portions is attached to a moving object either directly or by way of an intermediate member. The scale can be attached to a motor or the like even after assembling with associated mechanical components, thereby enabling easy measurement of the mode of operation of the motor or similar movable objects. The light beam from the light emitting device is directed to the label media and the reflected light beam is received by a light receiving device to identify the individual object or product based on the label.

摘要翻译： 包括光学或磁学不同的响应特性（例如光反射和光扩散部分或光反射和吸收部分）的规则包括直接或通过中间构件附接到移动物体。 即使在与相关联的机械部件组装之后，也可以将电子秤附接到电动机等，从而能够容易地测量电动机或类似的可动物体的操作模式。 来自发光装置的光束被引导到标签介质，并且反射光束被光接收装置接收，以基于标签识别单个物体或产品。

公开(公告)号：US5424960A

公开(公告)日：1995-06-13

申请号：US949713

申请日：1992-09-23

申请人： Asao Watanabe ,  Shuji Satoh

发明人： Asao Watanabe ,  Shuji Satoh

IPC分类号： G01R31/34 ,  G05B19/40

CPC分类号： G01R31/343

摘要： Characteristic parameters of a torque of a stepping motor and its associated driving current or voltage are measured in advance to providetorque vs. characteristic information data representative of the torque vs. driving current/voltage characterisitcs. Then, the above characteristic parameters are measured again when a real load is applied to a stepping motor as installed with associated mechanical coupling components. An actual load torque is determined by referencing the subsequently measured characteristic parameters to the previously obtained torque vs. characteristic information data. A load inertia moment can be determined by subtracting the motor's rotor inertia moment from a determined inertia moment of the entire system. Efficiency of the motor can be determined by multiplying the output of the measured load torque by the nuber of revolutions per second thereof and dividing this by the power supplied to the motor or driving circuit. Backlash can be determined from the play in the changes of associated current waveforms corresponding to particular intervals, i.e., an interval from when the direction of rotationof the motor is changed to when the load torque increases again.

摘要翻译： 预先测量步进电动机的转矩特性参数及其相关的驱动电流或电压，以提供代表转矩与驱动电流/电压特性的特征信息数据。 然后，当将实际负载施加到安装有相关联的机械耦合部件的步进电机时，再次测量上述特性参数。 通过参考随后测量的特征参数到先前获得的扭矩对特性信息数据来确定实际负载转矩。 可以通过从整个系统的确定的惯性矩减去电机的转子惯性力矩来确定负载惯性矩。 电动机的效率可以通过将测量的负载转矩的输出乘以其每秒的转数，并将其除以供给电动机或驱动电路的功率来确定。 可以根据对应于特定间隔的相关联的电流波形的变化，即从马达的旋转方向改变到负载转矩再次增加的间隔，从游隙中确定间隙。