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A large mass comparator weight calibration device

A technology of calibration device and comparator, applied in the field of metrology, can solve the problems of reducing the accuracy and stability of comparator weights, eccentric load error, etc., to increase accuracy and stability, reduce the possibility of linear drift, and greatly increase The effect of structural strength

Active Publication Date: 2021-11-05
SHANGHAI INST OF MEASUREMENT & TESTING TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The weights are verified, calibrated, and transferred through the comparator. Since the largest single weight of the existing high-grade weights (E2 grade) can only be traced to 50kg, large weights of 100kg and above (F1 grade and below The calibration can only be carried out with a combination of multiple 50kg weights. However, when the user places the weights on the weighing pan, it is difficult for the center of the weights to be at the same position as the center of the weighing pan. As a result, the eccentric load error is caused, which reduces the accuracy and stability of the comparator weight calibration

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  • A large mass comparator weight calibration device
  • A large mass comparator weight calibration device
  • A large mass comparator weight calibration device

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Embodiment Construction

[0040] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the specific implementation manners of the present invention will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention, and those skilled in the art can obtain other accompanying drawings based on these drawings and obtain other implementations.

[0041] In order to keep the drawings concise, each drawing only schematically shows the parts related to the invention, and they do not represent the actual structure of the product. In addition, to make the drawings concise and easy to understand, in some drawings, only one of the components having the same structure or function is schematically shown, or only one of them is marked. Herein, "a" not only means "only one", but also means "more than one".

[0042] According to an e...

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Abstract

The invention discloses a large-mass comparator weight calibration device, which relates to the field of measurement. It includes: a base, on which a weighing pan for weighing weights is arranged; a supporting structure, which is arranged on the weighing pan, and a supporting gap is provided on the supporting structure, and the width of the supporting gap is smaller than the The diameter of the weight; the loading frame is detachably connected to the base, and the loading frame includes a loading platform for supporting the weight; when the loading frame is arranged on the base, the loading platform Located in the support gap, the distance between the side of the loading table away from the base and the base is smaller than the distance between the side of the support structure away from the base and the base. The invention reduces the influence of the loading frame on the calibration process, that is, reduces the possibility of absolute error, and increases the accuracy and stability of the comparator weight calibration.

Description

technical field [0001] The invention relates to the field of measurement, in particular to a weight calibrating device for a large-mass comparator. Background technique [0002] The mass comparator is an electronic measuring device based on the principle of measuring the deformation and strain of elastic elements, or the principle of electromagnetic force feedback balance. Its main purpose is to measure the mass difference based on the ABA or ABBA cycle method, and it is used for high-resolution electronic measuring equipment for weight transfer or other special purposes for testing. [0003] At present, the eccentric load error is an urgent problem to be solved in the field of metrology. The eccentric load error refers to the error caused by the center of gravity of the weight deviating from the center of the weighing pan of the mass comparator. The weights are verified, calibrated, and transferred through the comparator. Since the largest single weight of the existing hig...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01G23/01
CPCG01G23/01
Inventor 熊忠琪苏祎程丽苑陈平刘佳鑫许祎凡
Owner SHANGHAI INST OF MEASUREMENT & TESTING TECH
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