Electric flexible ruler

Abstract

The invention discloses an electric flexible ruler. The electric flexible rule comprises a PCB; a first gray code channel, a second gray code channel, a third gray code channel, a fourth gray code channel and a fifth gray code channel which are all connected with an electric potential brush of a trigger are arranged on the PCB, wherein the first gray code channel, the second gray code channel and the third gray code channel are each provided with a plurality of counting gray codes used for counting, and a tripping prevention code used for placing a jumping brush of the electric potential brush is arranged between every two adjacent counting gray codes; the fourth gray code channel used for serving as to define code values of the gray codes is located in the inner side of the third gray code channel; the fifth gray code channel used for serving as a zero signal output label is located in the inner side of the fourth gray code channel. By means of the electric flexible ruler, the electric potential brush can be prevented from leaking to brush the gray codes, the counting of the gray codes is more accurate, the fourth gray code channel used for preventing from leaking to brush the gray codes is further arranged, and the electric potential brush can further be prevented from leaking to brush the gray codes due to the fact that the revolving speed of the electric potential brush is too high.

Description

technical field [0001] The invention relates to the field of soft feet, in particular to an electronic soft foot. Background technique [0002] The soft ruler in the prior art is mostly used in clothing design, anthropometric measurement or construction measurement. The process of stretching and shrinking during use is troublesome, especially the soft ruler is easy to curl, which will cause inaccurate measurement. [0003] Moreover, most of the tapes in the prior art are manually read numbers, which often cause reading errors, and the measurement results are not simple and intuitive enough. If the tape is designed as an electronically displayed tape, the above problems can be effectively solved. [0004] Therefore, the prior art still needs to be improved and developed. Contents of the invention [0005] In view of the above deficiencies in the prior art, the purpose of the present invention is to provide an electronic tape measure, which overcomes the technical defect of...

AI Technical Summary

Problems solved by technology

[0005] In view of the above-mentioned deficiencies in the prior art, the purpose of the present invention is to provide an electronic tape measure, which overcomes the technical defect in the prior art that the gray code disc is easy to jump and count inaccurately.

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