Multichannel digitized intelligent unbalance loading error correcting and weighing sensor and weighing method thereof

Abstract

The invention relates to a multichannel digitized intelligent unbalance loading error correcting and weighing sensor and a weighing method thereof and belongs to the technical field of sensor structures. The multichannel digitized intelligent unbalance loading error correcting and weighing sensor comprises an elastic body which is composed of a cross beam in the middle, a left fixing portion and a right fixing portion, the left fixing portion and the right fixing portion are positioned at two ends of the elastic body, a mounting hole is formed in the left fixing portion, a mounting hole is formed in the lower surface of the right fixing portion, a groove used for placement of a circuit board is formed in the upper surface of the right fixing portion, multiple through holes penetrating the cross beam are formed inside the cross beam, positions, corresponding to the through holes, on the upper surface and the lower surface of the cross beam are strain areas, two resistance strain devices are arranged on each of the upper surface and the lower surface of the cross beam, each resistance strain device is composed of four resistance strain meters, the four resistance strain devices are welded with the circuit board through leads, the circuit board is in communication connection with an external display unit, and an anticorrosion processing layer coats each of the upper surface and the lower surface of the cross beam and the outer surface of the groove. The multichannel digitized intelligent unbalance loading error correcting and weighing sensor is needless of filing and adjusting, convenient to operate, time saving, labor saving and high in measuring accuracy.

Description

technical field [0001] The invention relates to a multi-channel digitized eccentric load error intelligent correction weighing sensor and a weighing method thereof, belonging to the technical field of sensor structures. Background technique [0002] First of all, the traditional single-point resistance strain gauge load cell has a strong anti-offset load capacity in theory, but due to the error caused by machining, the deviation of the patch position and the inhomogeneity of the material of the resistance strain gauge itself, etc., All of these will lead to serious unbalanced load errors in single-point resistance strain load cells, which must be corrected before they can be applied to electronic scales. The current correction method is to install the load cell on the test platform, apply a load of 1 / 3 range on the center and four corners of the platform in sequence, and use a file to file different parts for correction according to the size of its output. Moreover, when th...

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Problems solved by technology

[0005] The purpose of the present invention is to solve the problems in the above-mentioned prior art that the adjustment of weighing accuracy needs to be carried out in a setback mode, which is time-consuming and labor-intensive, destroys the anti-corrosion treatment layer outside the load cell, reduces the protection effect, and needs to use temperature sensitivity to compensate resistance and temperature zero point. Compensation resistance, zero point output compensation resistance for temperature sensitivity, temperature zero point output, zero point output compensation, time-consuming and low-precision technical problems, to provide a setback adjustment, easy to operate, labor-saving and time-saving, high measurement accuracy Multi-channel digital eccentric load error intelligent correction load cell

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