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Method and system for measuring volumes and weights of continuously conveyed long objects based on optical measurement

A technology of optical measurement and volumetric weight, applied in the direction of continuous material flow weighing equipment, measuring devices, optical devices, etc., can solve the problems of high cost and low measurement efficiency

Inactive Publication Date: 2012-09-19
HEBEI UNIV OF TECH
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Problems solved by technology

The invention requires a lot of distance sensors or the sensors need to move back and forth in a fixed direction, the measurement efficiency is low, or the cost is high, and the invention is only effective for objects placed on the conveyor belt, but it is corrosive to steel billets that only move on the conveyor rollers Or high temperature and other objects, this method has greater limitations

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  • Method and system for measuring volumes and weights of continuously conveyed long objects based on optical measurement
  • Method and system for measuring volumes and weights of continuously conveyed long objects based on optical measurement
  • Method and system for measuring volumes and weights of continuously conveyed long objects based on optical measurement

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Embodiment Construction

[0030] The present invention will be further described in detail below in conjunction with the embodiments and accompanying drawings. The examples are only used to describe the present invention in detail, and do not limit the protection scope of the claims of the present application.

[0031]The continuous transmission long object volume weight measurement system based on optical measurement is characterized in that the system mainly includes a light projector 1, an image sensor 2 and a data processing system 3, the light projector 1 is composed of a laser projector and a lens, and the image sensor 2 adopts For an area array black and white CCD camera, in order to improve the measurement accuracy, a filter can be added to the lens of the camera, and the number of light projectors 1 and image sensors 2 can be arranged in multiples. It is appropriate that the light strip can surround the entire long object cross section. In the figure, two sets are arranged symmetrically, and t...

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Abstract

The invention discloses a method and a system for measuring volumes and weights of continuously conveyed long objects based on optical measurement. The sectional areas, the volumes and the weights of the continuously conveyed long objects are measured by a non-contact optical method. One or a plurality of light projectors 1 and one or a plurality of image sensors 2 are arranged within a certain distance surrounding the measured continuously conveyed long objects 4, the image sensors are connected with a data processing system 3 via a bus, the data processing system processes image data acquired by the image sensors, and the volumes and / or the weights of the objects to be measured are calculated by the aid of conveying speed and density data of the objects. The method and the system have the advantages that the cross sectional areas of the continuously conveyed objects can be accurately measured in a non-contact manner, and the volumes and / or the weights of the objects passing through a fixed plane can be calculated. Interference to a conveying system is avoided, the system can be conveniently added surrounding existing conveying equipment to be used for measuring the volumes and the weights of the objects, and is particularly suitable for measuring objects in a non-contact manner, such as hot rolling billets and pulverized coal.

Description

technical field [0001] The invention relates to a test and measurement technology and an instrument, in particular to a non-contact optical method for continuously transmitting the cross-sectional area, volume and weight of a long object. Background technique [0002] There are many methods for measuring the weight of continuously conveyed objects, such as balance method, spring tension and compression, and strain gauge method. The measuring instruments using these methods are installed in the middle of the conveyor that transmits the object to be measured, and the measured weight of the object per unit length is integrated to obtain the weight of the object with the required length. These measurement methods are not suitable for rigid long objects or the measurement accuracy is not high. [0003] Patent CN85106686A introduces a continuous measurement method for continuously conveying long objects, which can better solve this problem. Its measurement principle is to use dis...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B11/28G01B11/00G01G11/00
Inventor 彭凯杨伟东刘丽冰张宇杨泽青陈英姝
Owner HEBEI UNIV OF TECH
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