Patent US4905561A successfully refreshed from Google Patents.
Patent PT75791A successfully refreshed from Google Patents.
PT75791A
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PT
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Method and device for measuring hairiness of textile yarns
Assignee: Inst Universitario Da Beira In
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Filing: 1982-11-03
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Granted: —
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Expires: 2002-11-03
Abstract
Abstract Meter comprises a positive strip with means for locating the fibre, a photodetector emitting e.g. a 0-20 mV signal, an electromechanical system adjustable velocity, and a microprocessor. To increase accuracy, the diffraction image analysis is based on a Fourier transform produced in laser beams. Pref. a histogram is plotted of the mean square deviation on a metre for metre basis, with a programming range of 1-265 seconds, digital display and printing.
Inventors
- 👤 Fernando Antonio De Rodrigues
- 👤 Manuel Jose Dos Santos Silva
Bibliographic Details
Application Number
—
Jurisdiction
PT
Data Source
google_patents
Last Synchronized
2026-11-09 15:56
CPC Classifications
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