An electronic scale with automatic range switching and weighing method

Abstract

The invention discloses an electronic scale with automatic switching of measuring ranges and weighing method. The electronic scale includes a tray, three pressure sensors with different measuring ranges and a pedestal; a control unit is arranged in the pedestal, and a data input device and a display output device are arranged on the pedestal, and are connected with the control unit; the three pressure sensors are adjacent to each other in an end-to-end manner to form a regular triangle, the upper end faces of the three pressure sensors are located in the same horizontal plane, the upper end face after each pressure sensor is turned over around itself is still in the horizontal plane, and the three pressure sensors are connected with the control unit; and three drive circuits and three direct current motors are arranged in the pedestal, the three drive circuits are connected with the control unit, the three direct current motors are connected with the three drive circuits, and the three pressure sensors are connected with the three direct current motors. The electronic scale provided by the invention has the function of adaptive switching of measuring ranges, thereby facilitating weighing of objects of different weights by users.

Description

technical field [0001] The invention relates to the field of quality detection, in particular to an electronic scale and a weighing method with automatic range switching. Background technique [0002] Existing electronic scales generally have functions such as weighing, upper and lower limit check weighing and tweeting. However, the existing electronic scales, especially household electronic scales, are still limited in the weighing range. The small-scale precision electronic scales used to weigh salt, pepper and other condiments cannot weigh vegetables, meat and other dishes. , It is also impossible to weigh staple foods such as rice and flour. To weigh different types of food, electronic scales with different ranges must be used, which not only brings unnecessary troubles to users, but also wastes materials and money to a certain extent, which is not conducive to environmental protection and saving . Contents of the invention [0003] In order to solve the problem of i...

AI Technical Summary

Problems solved by technology

However, the existing electronic scales, especially household electronic scales, are still limited in the weighing range. The small-scale precision electronic scales used to weigh salt, pepper and other condiments cannot weigh vegetables, meat and other dishes. , It is also impossible to weigh staple foods such as rice and flour. To weigh different types of food, electronic scales with different ranges must be used, which not only brings unnecessary troubles to users, but also wastes materials and money to a certain extent, which is not conducive to environmental protection and saving

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