Electronic scale temperature correcting method and device

Abstract

The invention discloses an electronic scale temperature correction method and a device. The method comprises the steps of obtaining environment temperature after obtaining a weighting result by an electronic scale; respectively comparing the obtained environment temperature value with an electronic scale working temperature upper limit value and an electronic scale working temperature lower limit value which are preset in an electronic scale local position; calling a correction list preset in the electronic scale local position and obtaining a corresponding correction value in the correction list in a matching way according to the obtained environment temperature if the environment temperature value is higher than the electronic scale working temperature upper limit value preset in the electronic scale local position, or the environment temperature value is lower than the electronic scale working temperature lower limit value preset in the electronic scale local position; and carrying out correction on the weighting result according to the correction value obtained by matching. By using the method, when the electronic scale works in a condition that the environment temperature value is higher than a limiting temperature range value preset in the local position, the weight result of the electronic scale can be corrected automatically, so that an accurate weighing result is obtained.

Description

technical field [0001] The invention relates to the field of electronics, in particular to a method and device for correcting the temperature of an electronic scale. Background technique [0002] The electronic scale senses the quality of the object through its own quality sensor, and converts the analog signal of the quality sensor into a digital signal through an analog-to-digital converter and sends it to the microprocessor, which is calculated by the microprocessor to obtain the quality value of the object to be measured. [0003] The quality sensor of the electronic scale has certain requirements on the temperature of the working environment. If the working temperature of the sensor is exceeded, the weighing value of the electronic scale will be inaccurate. The working range of the above-mentioned quality sensor varies according to the performance of the electronic components. For example, 40 degrees to minus 10 degrees is a relatively common working range. When the wo...

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Problems solved by technology

[0004] In the prior art, it is more common to overcome the temperature drift by adding several quality sensor chips on the bridge, and by taking the average value of the results obtained by multiple quality sensors to calibrate the electronic scale, because the price of the quality sensor chips is relatively high High, the consequence of adding multiple quality sensors is to increase the manufacturing cost of electronic scales

[0005] Therefore, how to solve the problem of reducing the weighing accuracy of the electronic scale due to the ambient temperature, reducing the production cost, and improving the work efficiency of the electronic scale is one of the research directions in the field of metrology.

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