| 摘要 |
PURPOSE:To magnify and record shapes easily and to correct arc errors by constituting a stylus tip in such a way as to locate the same upper or lower than the line connecting the same and a fulcrum. CONSTITUTION:If the state in which a stylus tip 17' is upper by H is defined as a reference, it is necessary to correct arc errors by adding the voltage (h) corresponding to H to the output of a Y-direction detector. Here, H is the value determined from the shape of a measuring lever and if the measuring lever changes, the value is corrected correspondingly. When the tip 17' is lower than a line X'-X'', the correcting voltage (-h) corresponding to -H is added. In the block diagram of electric circuits, the output of the Y-direction detector is subjected to correction of (+h) or (-h) and the corrected output is made the Y-direction input of an X-Y recording stylus. Arc errors are corrected by using said output and the result is applied to an X signal which is then used as the X-direction input of the recording stylus. |
