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Belt scale weight calibration method equivalent to material calibration

A calibration method and belt scale technology, applied in the field of belt scales, can solve the problems of many external constraints, untimely calibration, and high calibration cost, so as to achieve complete control of the calibration cost, stable calibration conditions, and high calibration costs. low cost effect

Active Publication Date: 2017-10-20
SD STEEL RIZHAO CO LTD
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Problems solved by technology

Existing physical calibration of belt scales has disadvantages such as many external constraints, untimely calibration, and high calibration cost.

Method used

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  • Belt scale weight calibration method equivalent to material calibration

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Embodiment Construction

[0014] The present invention will now be described in further detail.

[0015] Such as figure 1 A method for verifying the weight of a belt scale equivalent to physical verification is shown, comprising the following steps:

[0016] Step 1: Under the condition that the parameters of the belt conveyor and its belt scale are the same as the external operating conditions (normal average load), respectively test the integration coefficients Ks and Km of the belt scale in the two verification methods of the physical object and the weight, where Ks is the actual object Calibration integral coefficient, Km is the calibration integral coefficient of weight M;

[0017] Step 2: Calculate the proportional coefficient K=Ks / Km between the two according to Ks and Km;

[0018] Step 3: When the belt scale needs to be calibrated during operation, use the last equivalent weight to calibrate the belt scale to obtain the current weight calibration cumulative coefficient Kxm; according to the cu...

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Abstract

The invention relates to a belt scale weight calibration method equivalent to material calibration, comprising the following steps: S1, testing the integrating factors Ks and Km of a belt scale under material calibration and weight calibration modes respectively; S2, calculating the proportionality coefficient K (K=Ks / Km) of the integrating factors Ks and Km according to Ks and Km; S3, calculating the current material calibration integrating coefficient Kxs (Kxs=K*Kxm) corresponding to the current weight calibration integrating coefficient Kxm according to the integrating coefficient Kxm of the belt scale under the current weight calibration mode and the proportionality coefficient K; and S4, using the current material calibration integrating coefficient Kxs to replace the current weight calibration integrating coefficient Kxm. The determined relationship of the same calibration precision parameter under different calibration modes is found out through research on the equivalence of a belt scale under the same internal and external conditions and different calibration modes and precision, and a calibration mode with low requirement on calibration conditions is used to replace a calibration mode with high requirement on calibration conditions. Convenient, timely, accurate and low-cost calibration is realized.

Description

technical field [0001] The invention relates to the field of belt scales, in particular to a method for verifying weights of belt scales equivalent to physical verification Background technique [0002] Based on the belt scale structure and weighing principle, affected by the tension of the belt, the gravity of the object to be weighed cannot be fully loaded on the load cell. Therefore, physical verification is the most accurate and reliable verification method for belt scales. However, most of the time belt scales do not have the conditions for physical verification on site, and cannot be conveniently, timely, accurate and low-cost. Traditional calibration belt scales only use physical objects or weights to calibrate one of them at a time. The physical verification of existing belt scales has the disadvantages of many external constraints, untimely verification, and high cost of verification. Contents of the invention [0003] In order to overcome the disadvantages, th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01G23/01
CPCG01G23/01
Inventor 范鹍王如旭韩笑李振玉
Owner SD STEEL RIZHAO CO LTD
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