Electromagnetic levelness measuring device

Abstract

The invention relates to an electromagnetic levelness measuring device comprising a first permanent magnet, a glass tube, a plurality of hall elements, and a second permanent magnet. The first permanent magnet is arranged over the glass tube; the plurality of the hall elements are horizontally spaced under the glass tube in parallel; the second permanent magnet is arranged below the plurality of hall elements; the glass tube is filled with oil liquid and a movable air bubble is in the oil liquid; the first permanent magnet and the second permanent magnet are used for generating a magnetic field, the air bubble is used for changing medium in the magnetic field so that the magnetic field intensity changes correspondingly, and the plurality of hall elements outputs corresponding hall current according to the change of the magnetic field intensity. The electromagnetic levelness measuring device has advantages of simple production process, low production cost and high detection accuracy compared to the prior art.

Description

technical field [0001] The invention relates to the technical field of measuring tools, in particular to an electromagnetic levelness measuring device. Background technique [0002] The level meter is a common measuring tool for measuring small angles. In the machinery industry and instrument manufacturing, it is used to measure the inclination angle relative to the horizontal position, the flatness and straightness of the guide rail of machine tool equipment, the horizontal position and vertical position of equipment installation, etc. According to the shape of the level, it can be divided into: universal level, cylindrical level, integrated level, mini level, camera level, frame level, ruler level; according to the fixing method of the level, it can be divided into: adjustable level and Non-adjustable spirit level. [0003] At present, the common levels on the market mainly include electronic levels based on single-chip microcomputers and bubble capacitive levels. The el...

AI Technical Summary

Problems solved by technology

[0004] The electronic level has the advantage of high measurement accuracy, but the technical process is complicated and the production accuracy is high, so the cost is high; the bubble capacitive level is low in cost and easy to process, but the measurement accuracy is low; therefore, the present invention combines the two Advantages, a new type of electromagnetic levelness measuring device is designed, which can not only meet the accuracy requirements, but also reduce the cost

Images