发明名称 |
Device for taking an impression and visualizing said impression |
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.
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申请公布号 |
US4017978(A) |
申请公布日期 |
1977.04.19 |
申请号 |
US19760650402 |
申请日期 |
1976.01.19 |
申请人 |
SOCIETE NATIONALE ELF AQUITAINE (PRODUCTION) |
发明人 |
PERUCHON, EDOUARD;RABISCHONG, PIERRE |
分类号 |
G01B7/28;G01B7/00;G01B7/287;(IPC1-7):G01B7/28 |
主分类号 |
G01B7/28 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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