发明名称 |
OPTICAL IMAGING SYSTEM FOR FABRIC SEAM DETECTION |
摘要 |
A non-contacting optical imaging system for seam or other periodic pattern detection for a web of material such as a strip of fabric is disclosed in which a line scan camera is used to capture a seam or other periodic pattern image and the electrical output from the camera is converted to an alternating current signal and then to a direct current signal which is proportional to the presence or absence of a seam other periodic pattern. The DC signal is integrated and then compared to a preset reference value to produce a signal for driving an alarm, display or machine control devices.
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申请公布号 |
US5150175(A) |
申请公布日期 |
1992.09.22 |
申请号 |
US19910668614 |
申请日期 |
1991.03.13 |
申请人 |
AMERICAN RESEARCH CORPORATION OF VIRGINIA |
发明人 |
WHITMAN, DOUGLAS L.;SARRAFZADEH, ADEL K. |
分类号 |
B65H26/02 |
主分类号 |
B65H26/02 |
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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