首页>
外国专利>
Hand held instrument for measuring material lengths - is used in shops to calculate values of material sold by length
Hand held instrument for measuring material lengths - is used in shops to calculate values of material sold by length
展开▼
机译:手持式测量材料长度的仪器-在商店中用于计算按长度出售的材料的值
展开▼
页面导航
摘要
著录项
相似文献
摘要
The instrument (1) has a small wheel (2) mounted on a free-running shaft (3). The wheel is positioned on a platform (6) at the front end of the (7) of the instrument. Each time the wheel rotates a magnetic element (4) embedded in the outer surface of the wheel is detected by a sensor (5). The output of the sensor is fed via a cable (10) to an electronic calculator and readout. At the other end of the instrument is an optical bar code reader (9). When a customer brings a length of material e.g. a piece of plastic extrusion (8) to the checkout, the cashier reads a bar code with one end of the instrument and then runs the wheel along the length. The value of item is then indicated on a display. variant of this instrument has the display and calculator built into the body of the hand held instrument rather than being a separate item.
展开▼