Instrument coding print wheel apparatus and coding method
A coding and character wheel technology, which is applied in the counter photoelectric coding character wheel device structure and coding field, can solve the problems of strict production process requirements, poor product stability, poor uniformity, etc., and achieve low production process requirements, stable and reliable products, and reduce The effect of maintenance
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[0020] The following describes a meter encoding character wheel device and encoding method using the present invention in conjunction with the accompanying drawings.
[0021] Such as figure 1 The instrument coding character wheel device shown includes a light emitting board 1, a light receiving board 2, a decoding circuit board 3, a coding character wheel 4 and a character wheel shaft 5; The two sides are fixed on the decoding circuit board 3.
[0022] Such as figure 2 As shown, the code wheel 4 includes a circular code wheel 42 centered on the character wheel axis 41 and a number end surface 43 arranged around the edge of the circular code wheel 42 . On the digital end face 43 are evenly distributed 10 manual-readable digital characters 45 from '0' to '9'. 20 driven carry teeth 44 are distributed on one side of the digital end face, and 2 active carry teeth 47 are distributed on the other side of the digital end face, and three equal-radius arcs are set on the circular co...
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