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1. 发明授权

US4017978A Device for taking an impression and visualizing said impression 失效
标题翻译：用于获取印象并显示所述印象的设备
公开(公告)号：US4017978A
公开(公告)日：1977-04-19
申请号：US650402
申请日：1976-01-19
申请人： Edouard Peruchon , Pierre Rabischong
发明人： Edouard Peruchon , Pierre Rabischong
IPC分类号： G01B7/28 , G01B7/00 , G01B7/287
CPC分类号： G01B7/287
摘要： A multidetector is constituted by a lattice of N rods each having a ferromagnetic portion and slidably mounted within N coils forming the secondary windings of a transformer, each detector being constituted by a rod associated with a coil. The common primary circuit of the transformer is formed by a single coil which surrounds the N secondary windings and is supplied with alternating current of constant amplitude. The rods are brought into contact with an object for taking an impression of a portion of its external surface. The N voltages developed at the terminals of the N secondary coils are transmitted sequentially by a multiplexer to the screen of a storage oscilloscope so as to form the impression by means of N points, a coordinate of each point being a linear function of the voltage developed at the terminal of the corresponding secondary coil.
摘要翻译：多检测器由N个棒构成，每个棒具有铁磁部分并且可滑动地安装在形成变压器的次级绕组的N个线圈中，每个检测器由与线圈相关联的杆构成。变压器的公共初级电路由围绕N次级绕组的单个线圈形成，并且被提供恒定的交变电流。杆与物体接触以获得其外表面的一部分的印象。在N个次级线圈的端子处产生的N个电压通过多路复用器顺序地传输到存储示波器的屏幕，以便通过N个点形成印象，每个点的坐标是所产生的电压的线性函数在相应的次级线圈的端子处。

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