Therefore verification institutions urgently needs a bra can meet steel tape test precision, and can improve the efficiency of test steel bra tape measure error of automatic test system. Bra for steel tape measure calibration requirements, is developed based on CCD image bra steel tape automatic spindle system setting, and use the VisualBaSic6 image processing software is developed, which can realize automatic image acquisition processing. Test results report output, repeat accuracy is less than 12 point, easy to operate, bra for more than 10 m steel tape can be segmented detection.Bra steel tape measure accuracy will directly tailor measure tape affect the accuracy of measurement, so the bra steel tape must carry out quality checks during use. Currently, most are still in use manual operation to complete testing on the bra tape steel, long bra in steel tape test bench with a microscope comparing measured steel bra bra error of the measuring tape, tape measure and standard steel this way low degree of automation, digitization, the intensity of labor is big.
The material is PVC plastic and glass fiber, glass fiber can prevent elongated in the process of bra the use of the tape. Leather bra tape is made from glass fiber and PVC plastic also, alias fiber OD（outside diameter）tape measure bra tape or flexible rule. Generally is the metric system, one side is 150 cm, another side to 60 inches. Measuring unit inches is commonly used in foreign countries, the television and the size of the display unit is inch. And jeans size is inches. At home, a measuring tape measure commonly used is in inches. A 150 cm, 45, another side. Often say 2 '1, 2' 2 waist, is the unit in inches.Bra bra tape the main types of the steel tape measure, followed by fiber bra tape measure, is the tape measure, you often see a lot of people say tape, there is waist feet (tailor tape/tape belong to such). In the south of our country and Hong Kong are usually called bra tape flexible rule or feet.