N° 672
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Presence control of a fluorescent semitransparent cover on a white plastic box
The presence of a fluorescent semitransparent cover should be controlled.
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N° 414
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工业风扇的频率控制 应监测风机的频率或旋转方向。为此在一个转子叶片上粘贴了一张在紫外线下发出荧光的揭帖。
Frequency control of industrial ventilators
The frequency as well as the direction of rotation of industrial ventilators should be controlled. At this, on one of the blades of the ventilator a fluorescent label is glued on.
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N° 336
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监测板材上的荧光标记 应识别木板上的荧光标记,在此必须能准确地监测到紧密相邻的两条荧光线。
Detection of fluorescent marks on wooden board
Fluorescent marks should be detected on wooden boards. At this, two marks which are close together should be proper detected.
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N° 333
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监测工业鼓风机的频率 应监测工业用鼓风机的频率。此外,也应检查旋转方向。
Frequency control of industrial ventilators
Ventilators for industrial purposes should be frequency checked. Furthermore the direction of rotation should be controlled.
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