读头就是大家常说的读卡器,也就是控制系统中的读写模块。将读头芯片封装起来,通过串口或IIC等方式与控制器进行通信,就形成了简单的控制系统。
这个信号模拟了一张磁条卡刷过读头的相同的磁场变化。
The signal received from the device emulates the same magnetic field change as a mag stripe card when swiped across the same read head.
以及在该运动台面的相对侧设有单支的绝对式光学尺及两组读头。
The opposite side of the moving surface is provided with a single absolute type optical rule and two groups of read heads.
好问题,这就像,老留声机里的小读头,它通过来回移动,来完成不同的操作。
Good question, so there is this little reading head kind of like in an old phonograph player that does move back and forth and in and out depending on the implementation.
Good question, so there is this little reading head kind of like in an old phonograph player that does move back and forth and in and out depending on the implementation.
好问题,这就像,老留声机里的小读头,它通过来回移动,来完成不同的操作。
Other signals move the read/write heads to read or write data on the platters.
其他的信号移动读写头,来到硬盘中去读或者写。
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