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Electronic belt scale electrical parameter testing method based on virtual instrument

A technology of electronic belt scales and electrical parameters, which is applied to the detailed information of instruments, measuring devices, weighing equipment, etc., can solve the problems of unfriendly human-computer interaction interface, low precision, poor flexibility, etc., and achieve a short product update cycle. , The effect of software maintenance is simple

Inactive Publication Date: 2021-06-18
ANHUI XINHUA UNIV
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The entire measurement process requires more hardware equipment, so there are disadvantages such as poor flexibility, low precision, poor reliability, and unfriendly human-computer interaction interface.

Method used

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  • Electronic belt scale electrical parameter testing method based on virtual instrument
  • Electronic belt scale electrical parameter testing method based on virtual instrument
  • Electronic belt scale electrical parameter testing method based on virtual instrument

Examples

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Embodiment Construction

[0029] refer to Figure 3-4 , a method for testing electrical parameters of an electronic belt scale based on a virtual instrument, comprising the following steps:

[0030] S1, connection system, the speed sensor 1 is set on the roller shaft of the driven wheel, the gravity sensor is used to detect the pressure of the idler roller 3, two data acquisition cards are used to connect the gravity sensor 2 and the speed sensor 1 respectively, and the data acquisition card is incorporated into The chassis is connected to the PC through the USB interface, and the LabVIEW software installed in the PC is used;

[0031] S2. Deduct the self-weight of the belt 5 and the scale frame, and measure the weight under the weighing bridge frame and the resistance strain sensor; the specific steps are:

[0032] S21. When the material 4 on the belt 5 passes above the scale frame, the weight W(t) of the material 4 in a certain weighing interval L of the electronic belt 5 scale is:

[0033] W(t)=(G-...

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Abstract

The invention provides an electronic belt scale electrical parameter testing method based on a virtual instrument, and the method comprises the following steps: S1, connecting a system, installing a speed measurement sensor and a gravity sensor on rotating shafts of a plurality of carrier rollers for rotation of a belt, respectively connecting two data collection cards with the gravity sensor and the speed measurement sensor, merging the data collection cards into a case and connecting the data collection cards into a PC (Personal Computer) through a USB (Universal Serial Bus) interface, and using LabVIEW software installed in the PC; S2, deducting the dead weights of the belt and a scale frame, and measuring the weight by adopting a weighing bridge frame and a resistance strain type sensor; and S3, accumulating the flow M of the materials within the time interval t. According to the invention, a virtual instrument graphical software programming technology and a powerful mathematical function library of the LabVIEW are adopted to display and integrate the acquired data, so that the instrument not only has the basic functions of a traditional instrument, but also fully utilizes the advantages of graphical language programming of the LabVIEW to develop a good human-computer interface.

Description

technical field [0001] The invention relates to the technical field of belt scales, in particular to a method for testing electrical parameters of an electronic belt scale based on a virtual instrument. Background technique [0002] The electronic belt scale is a device that can continuously weigh the weight of bulk granular materials. Carry out cumulative weighing. Therefore, electronic belt scales have been widely used in coal mines, cement, chemicals, granaries, docks and other occasions. [0003] The main components of the electronic belt scale are composed of measuring sensors (weighing, speed measuring), carrying devices (scale frames), signal processing devices (amplifying and integrating devices), and displays. The sensor detects the parameters and converts them into electrical signals, which require signal processing and finally display the measured values. The electrical detection part of the existing belt scale is mostly composed of amplifiers, multipliers, int...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01G11/00G01G23/14
CPCG01G11/003G01G23/14
Inventor 张帆张红
Owner ANHUI XINHUA UNIV
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