Electronic scale with temperature compensating function

Abstract

The invention discloses an electronic scale with a temperature compensating function and belongs to the technical field of the electronic scale. The problem that an error of a sensor is caused by temperature influence in the current electronic scale is solved. The electronic scale comprises a central processing unit module, a weight sensor module, a temperature sensor module, a power supply, an external display module and a peripheral circuit, wherein the weight sensor module and the temperature sensor module are both electrically connected with the central processing unit module; the central processing unit module comprises a storage unit, a built-in analog-to-digital conversion circuit and a built-in operation unit; the built-in analog-to-digital conversion circuit is used for performing signal conversion on weight and temperature numerical values; the built-in operation unit is electrically connected with the external display module. Each function is realized through operation and correction, temperature is converted into a digital value, and ambient temperature is calculated by a formula; weighing measurement is compensated under different temperatures according to temperature characteristic PPM value of the sensor so as to obtain a precise weight value.

Description

technical field [0001] The invention relates to an electronic balance, in particular to an electronic balance with temperature compensation. Background technique [0002] The sensor of the electronic scale is affected by the temperature, and there will be certain errors. For example, when the temperature is 30° in Zhejiang Province, the adjusted electronic scale shows a weight of 60KG, but when the temperature is only 5° in the north, the reading may only be 59.6KG. When going to the tropics where the temperature is 40°, the reading becomes 60.2KG again. Therefore, when a large number of items need to be measured, the error will be larger, which will cause certain losses to the parties. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide an electronic scale which adds a module, calculates the error according to the reading and temperature, and automatically increases or decreases the reading when displaying. [0004...

AI Technical Summary

Problems solved by technology

[0002] The sensor of the electronic scale is affected by the temperature, and there will be certain errors. For example, when the temperature is 30° in Zhejiang Province, the adjusted electronic scale shows a weight of 60KG, but when the temperature is only 5° in the north, the reading may only be 59.6KG. When going to the tropics with a temperature of 40°, the reading becomes 60.2KG again. Therefore, when a large number of items need to be measured, the error will be greater, which will cause certain losses to the parties.

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