| 摘要 |
PCT No. PCT/FR92/00922 Sec. 371 Date Jul. 28, 1993 Sec. 102(e) Date Jul. 28, 1993 PCT Filed Sep. 30, 1992 PCT Pub. No. WO93/08446 PCT Pub. Date Apr. 29, 1993.A device for non-destructively and continuously measuring and monitoring the thickness of a shaped section includes an extruder for extruding a thermoplastic material to form a shaped section having a temperature variation extending along a length of said section, at least one unit for measuring and detecting radiation emitted by the section during movement of the shaped section from the extruder and at least one unit for causing the radiation detecting and measuring unit to scan the entire outer surface of the shaped section. The detecting and measuring unit being connected to a computer system including imaging processing software, a radiation recording unit and a display screen for determining a variation in the thickness of the shaped section based on a variation of emitted radiation detected by the detecting and measuring unit.
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