发明名称 |
Band detection sensor and detection method therefor |
摘要 |
A band detection sensor includes LEDs configured to radiate detection light onto one side of a web, photodiodes configured to receive the detection light reflected by the web and output a detection signal corresponding to the detection light, and a discrimination section configured to discriminate bands on the web on the basis of the detection signal from the photodiodes, wherein the discrimination section includes a rise discriminating criterion indicating a rate of rise of the detection signal and generates a band signal indicative of the presence of a band when change of the detection signal fulfills the rise discriminating criterion. |
申请公布号 |
US9013697(B2) |
申请公布日期 |
2015.04.21 |
申请号 |
US201414178438 |
申请日期 |
2014.02.12 |
申请人 |
Japan Tobacco Inc. |
发明人 |
Kida Shinzo;Izumiya Takafumi |
分类号 |
G01N21/84;G01N21/55;A24D1/02;A24C5/34;D21H27/00 |
主分类号 |
G01N21/84 |
代理机构 |
Birch, Stewart, Kolasch & Birch, LLP |
代理人 |
Birch, Stewart, Kolasch & Birch, LLP |
主权项 |
1. A band detection sensor for detecting bands arranged on one side of a web and spaced from each other in a longitudinal direction of the web, comprising:
a light emitter arranged at a location along a travel path of the web and configured to radiate detection light onto the one side of the web; a light receiver arranged at a location along the travel path at a distance from the light emitter along the travel path, the light receiver being configured to receive the detection light reflected by the web and output a detection signal corresponding to intensity of the received detection light; and a band discriminator configured to discriminate the bands on the web on the basis of the detection signal from the light receiver, wherein the band discriminator includes a rise discriminating criterion indicating a rate of rise of the detection signal and generates a band signal indicative of presence of the band when change of the detection signal fulfills the rise discriminating criterion. |
地址 |
Tokyo JP |