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Real-time measurement apparatus of microgram magnitude quality and measurement method thereof

A real-time measurement and quality technology, applied in the field of measurement, can solve the problems of high-frequency and high-precision real-time measurement of microgram-level quality, and achieve the effect of high-precision and high-frequency measurement

Inactive Publication Date: 2016-12-07
NORTHWESTERN POLYTECHNICAL UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to provide a real-time measurement device and measurement method for microgram-level quality, so as to solve the problem that high-frequency and high-precision real-time measurement of microgram-level quality cannot be performed in the prior art

Method used

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  • Real-time measurement apparatus of microgram magnitude quality and measurement method thereof
  • Real-time measurement apparatus of microgram magnitude quality and measurement method thereof
  • Real-time measurement apparatus of microgram magnitude quality and measurement method thereof

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Embodiment

[0046] 1. Specific parameters:

[0047] In the present invention, the most important implementation parameters include: the size and material of the weighing elastic sheet 3, the non-contact displacement sensor 5, and the surface roughness of the detection target block 2, and the remaining parameters can be freely designed.

[0048] For example, the material of the weighing elastic piece 3 is nickel-chromium alloy steel, the elastic modulus E=206GPa, the size parameters L=10cm, w=1cm, δ=0.02mm.

[0049] The non-contact displacement sensor 5 is the LK-G85 laser displacement sensor of Keyence Corporation, the accuracy of the laser displacement sensor is 0.2 μm, and the measurement range is 1 mm.

[0050] The weighing tray 1 is an aluminum alloy cuboid, and its length, width and height are 50mm×50mm×2mm; the detection target block 2 is an aluminum alloy cuboid, its length, width and height are 5mm×5mm×2mm, and the surface roughness is 0.2μm .

[0051] Both the support platform ...

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Abstract

The invention discloses a real-time measurement apparatus of microgram magnitude quality. The apparatus comprises an installation platform. An upper surface of the installation platform is provided with a non-contact displacement sensor. A weighing elastic sheet is suspended above the installation platform. A lower surface which is adjacent to the weighing elastic sheet is connected to a detection target block. A central axis of the detection target block, a central axis of the non-contact displacement sensor and a center position of the weighing elastic sheet are superposed. The invention also discloses a measurement method of the real-time measurement apparatus of microgram magnitude quality. By using the apparatus and the method of the invention, a problem that the microgram magnitude quality can not be measured in high frequency and high precision modes in real time in the prior art is solved.

Description

【Technical field】 [0001] The invention belongs to the technical field of measurement, and in particular relates to a real-time measurement device and a measurement method for microgram-level mass. 【Background technique】 [0002] Weighing (that is, measuring mass) is widely used in industrial production and scientific research. In many cases, we are concerned about the dynamic change process of the weighed mass. For example, in the study of material thermal decomposition, it is necessary to measure the real-time change of material mass at different temperatures or heating rates, and then the thermal decomposition rate can be calculated, and the material’s mass can be obtained. thermal decomposition properties. For measuring the dynamic change of mass, it is required that the weighing device has good dynamic response characteristics and can measure the dynamic change of mass in real time. In measurement technology, the natural frequency is used to characterize the dynamic re...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01G3/12
CPCG01G3/12
Inventor 吕翔陈剑李江刘佩进
Owner NORTHWESTERN POLYTECHNICAL UNIV
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