Tidal calculation ruler
A slide rule and tidal technology, applied in the field of tidal slide rule, can solve problems such as difficult alignment of scale lines, and achieve the effects of easy storage and use, accurate measurement, and fast calculation of tide time and tide height
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[0027] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments.
[0028] Such as Figure 1-Figure 6 As shown, a tidal slide rule is disclosed, comprising:
[0029] The main scale plate, the two ends of the back of the main scale plate are provided with sliding arms 6, and the two sides of the back are provided with auxiliary rollers 8; The shape dividing shaft 4 is rotationally connected with the sliding arm 6;
[0030] Such as figure 1 As shown, the tooth-shaped dividing shaft 4 moves along the sliding arm 6, thereby driving the sub-ruler A for tide time and the sub-ruler B for tide height sleeved on it to roll up and straighten, which is beneficial to the adjustment of tide time and tide height. Quick measure;
[0031] In the middle of the back side of the main ruler plate, there is a transmission mechanis...
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