High school mathematics cylinder circumference measuring device

Abstract

The invention discloses a high school mathematics cylinder circumference measuring device. The high school mathematics cylinder circumference measuring device comprises a mounting plate, wherein connecting plates are arranged at the side surface of the mounting plate; four connecting plates are set, and every two adjacent connecting plates are vertically arranged; a sliding slot is formed in eachconnecting plate, and a slide block is slidably connected to the sliding slot; an adjusting hole is formed at the position, corresponding to the slide block, on the side surface of each connecting plate; an adjusting rod is rotatably connected with the inside of the adjusting hole; a scale line is arranged on the surface of the connecting plate; a pointer is arranged at the side surface of the slide block above the sliding plate; a slot is formed in the slot groove of the sliding slot; and a card is arranged at the position, corresponding to the slot, of the slide block. The high school mathematics cylinder circumference measuring device adjusts the position of the adjusting rod to change the position of the slide block so as to enable the slide block to tightly press against the side surface of the cylinder, measures the diameter of the cylinder by reading the scale on the scale line, and calculates the diameter of the circumference through Pid.

Description

technical field [0001] The invention relates to the technical field of teaching instruments, in particular to a high school mathematics cylinder circumference measuring device. Background technique [0002] Circumference is a mathematical term, which refers to the track on a plane with a certain point as the center and a certain length as the distance. It is called a circle. Sometimes it is necessary to measure the circle when learning mathematics. Disclosed is a measuring device, in particular to a measuring device for the circumference of a cylinder in high school mathematics. The technical problem to be solved by the present invention is to provide a high school mathematics cylinder circumference measurement device with simple operation, accurate measurement and high measurement efficiency. In order to solve the above technical problems, the present invention provides such a high school mathematics cylinder circumference measuring device, including hanging plate, rotatin...

AI Technical Summary

Problems solved by technology

In order to solve the above technical problems, the present invention provides such a high school mathematics cylinder circumference measuring device, including a hanging plate, a rotating shaft, a disc, a bearing seat I, a ring gear, a motor I, a gear, a cylinder I, a clamp block, and a motor Ⅱ, bearing seat Ⅱ, bearing seat Ⅲ, support rod Ⅰ, paper roll, screw rod, nut, air pump, cylinder Ⅱ, cylinder Ⅲ, glue stick, air pipe, suction nozzle, pressure wheel Ⅰ, paper, support rod Ⅱ, Place the platform and the pressure wheel II, the center of the hanging plate is provided with a rotating shaft, the front side of the hanging plate is provided with a disc, the center of the disc is provided with a bearing seat I, and the bearing seat I is matched with the rotating shaft, although the circumference can be measured, However, there is a relatively complex overall structure, which makes the cost higher and is not easy to promote and use

Images