Device and method for measuring size and porosity of object and vacuum air sealing method

An object and volume technology, which is applied in the field of measuring the volume of objects, can solve the problems of unfavorable effects of measured objects or users, affecting measurement accuracy, and large processing capacity of 3D laser scanning data.

Pending Publication Date: 2018-02-09
CHANGZHOU GUANGWEI INSTR TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When it comes to volume measurement, the data processing capacity of 3D laser scanning is large, and it needs to be equipped with a large memory and high-speed CPU computer, which takes a long time for scanning and data processing.
In many cases, users only need to know the volume of the object, but 3D laser scanning needs to scan the object point by point to establish a 3D digital model of the object, and then get the volume, which is not only time-consuming but also a waste of resources
Three-dimensional laser scanning has relatively high requirements on the surface of the object to be measured. If the surface

Method used

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  • Device and method for measuring size and porosity of object and vacuum air sealing method
  • Device and method for measuring size and porosity of object and vacuum air sealing method

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Experimental program
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Effect test

Embodiment 1

[0069] Refer to attached figure 1 As shown, the device for measuring the volume of an object in the present invention includes a first measuring container, a second measuring container, a vacuum pump 114 , a flow meter 112 , a pressure sensor 110 and an encapsulating air bag 107 .

[0070] The first measuring container includes a first box body 102 and a first cover body 101 sealingly fitted with it. The first box body 102 is provided with a first gas outlet and a first gas inlet, and the first gas outlet passes through a first vacuum tube. 121 is connected with the vacuum pump 114, the first vacuum tube 121 is provided with a first valve 115, the first gas inlet is connected with a second vacuum tube 122, and the second vacuum tube 122 is provided with a second valve 103. Then, when the first valve 115 is opened, the vacuum pump 114 can realize the vacuum in the first measuring container, and when the second valve 103 is opened, the gas can be released in the first measuring ...

Embodiment 2

[0077] The difference between the second embodiment and the first embodiment lies in the encapsulation of the air bag, refer to the attached figure 2 As shown, the sealing air bag in this embodiment includes a main body bag 104 and a cover body bag 106. the bottom end of the second cover 105 . The third vacuum tube 123 is also connected to a side tube 126, and the second cover 105 is provided with a second gas through hole, and the other end of the side tube 126 passes through the second gas through hole and connects with the second cover 105 and the second cover 105. If the gap between the cover bags 106 is connected, the side pipe 126 can realize the extraction and filling of the gas between the second cover 105 and the cover bag 106, further ensuring that the first measuring container, the second measuring container and the packaging gas Vacuum in and between bags. The second embodiment is the same as the rest of the first embodiment, and will not be repeated here.

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Abstract

The invention discloses a device for measuring the size of an object. The device comprises a first measuring container, a second measuring container and a sealing air bag; the first measuring container comprises a first box and a first cover, and a first air outlet used for being connected with a vacuum pump and a first air inlet used for releasing air into the first box are formed in the first box; the second measuring container is used for being arranged in the first measuring container and comprises a second box and a second cover, a first air through hole is formed in the second box, the first air through hole is connected with the vacuum pump and a flowmeter through a t-branch pipe separately, when the first air through hole is communicated with the vacuum pump, a vacuum in the container is achieved, the first air through hole is used for releasing air into the second measuring container when being communicated with the flowmeter, and a pressure sensor is connected to the t-branchpipe and used for measuring the air pressure in the container; the sealing air bag is used for sealing the object to be measured. The invention further discloses a method for measuring the size and the porosity of the object and a vacuum air sealing method. The device has the advantages that the structure is simple, the cost is low, measurement is accurate and reliable, the device is suitable formeasuring objects in various shapes, and the application range is wide.

Description

technical field [0001] The invention relates to the technical field of measuring object volume, in particular to a device and method for measuring object volume and porosity and a vacuum gas sealing method. Background technique [0002] Many fields such as industry, agriculture, and scientific experiments need to measure the porosity of objects. The pores of objects are usually irregular in shape and different in size, especially for porous objects. If you use a gauge to measure the size and depth of each pore one by one, it will Time-consuming and labor-intensive. And in many cases, the pores of the object will extend from the surface to the interior, and its internal extension, regardless of shape and size, is often not related to the surface pores, and cannot be measured or estimated from the surface. [0003] At present, the measurement of the porosity of an object is often carried out by using the Archimedes principle, using three-dimensional laser scanning technology, ...

Claims

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Application Information

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IPC IPC(8): G01F17/00G01N15/08
CPCG01F17/00G01N15/088
Inventor 何天青金燕平
Owner CHANGZHOU GUANGWEI INSTR TECH
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