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Method for positioning and controlling deflection state of rotor of centrifugal machine through intelligent algorithm

A centrifuge rotor and intelligent algorithm technology, applied in centrifuges and other directions, can solve the problems of low positioning accuracy and not applicable to all occasions, and achieve the effect of improving the possibility

Pending Publication Date: 2022-03-01
深圳市奥极因科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Such methods have problems such as low positioning accuracy and not being applicable to all occasions.

Method used

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  • Method for positioning and controlling deflection state of rotor of centrifugal machine through intelligent algorithm
  • Method for positioning and controlling deflection state of rotor of centrifugal machine through intelligent algorithm
  • Method for positioning and controlling deflection state of rotor of centrifugal machine through intelligent algorithm

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Effect test

Embodiment 1

[0135] To diameter 400mm, comprise the cross type horizontal rotor of four hanging baskets 8. Because the rotor with the structure of the hanging basket 8 usually has a changeable centrifuge tube 6, it is easy to cover the centrifuge rotor. Generally, the feature area comparison method of the wall area is used. The symmetrical rotation angle of each hanging basket 8 in the cross-shaped horizontal rotor of the four hanging baskets 8 is 90 degrees. According to the double small cycle scanning, the search angle is set to be 180 degrees, starting from the six o'clock direction of the center circle of the sample hole Start at twelve o'clock and end at twelve o'clock. In the case that the positioning accuracy is required to be 0.5 mm, the circle of the center of the sample hole corresponding to the cross-shaped horizontal rotor is about 1256 mm, and the number of steps to complete the circle of the center of the sample hole is at least about 2512 steps. Since the double small cycl...

Embodiment 2

[0137] For a fixed angle rotor 1 with a diameter of 200 mm comprising six sample wells 3 . Because the structure is relatively simple, the error integral replacement angle method can be used. The symmetrical rotation angle of the fixed-angle rotor 1 of the six sample slots 3 is 60 degrees. According to the small cycle scanning, the search angle is set to 60 degrees, starting from the six o'clock direction of the sample hole center circle and ending at the eight o'clock direction . In the case that the positioning accuracy is required to be 0.5 mm, the circumference of the center of the sample hole corresponding to the fixed-angle rotor 1 is about 628 mm, and the number of steps at least about 1256 steps is to complete the circle of the center of the sample hole. Since the double small cycle scanning only needs to scan half a circle, the total number of steps can be set as 750 steps. Combining this parameter with the error integral replacement angle method can determine the d...

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Abstract

The invention discloses a method for positioning and controlling the deflection state of a centrifuge rotor through an intelligent algorithm, and the method comprises the following steps: 1, pre-scanning: enabling a sensor to move along the circumference of the center of a sample hole, and obtaining pre-scanning data which comprises the pre-scanning height data and the information of the position of the corresponding sensor; step 2, working scanning: during scanning, the sensor records height data of each point on the surface of the centrifuge rotor along the circumference of the center of the sample hole in real time and information of the corresponding current position of the sensor to obtain working scanning data; 3, geometric comparison: carrying out statistical analysis on the scanning data and the working scanning data to determine the actual deflection state of the centrifugal machine; performing statistical analysis on the height data of the wall area and the sample hole area to determine the actual deflection state of the centrifugal machine; by the adoption of the method, sample filling is executed, hardware of the centrifugal machine does not need to be modified, and the automation possibility of the centrifugal machine is greatly improved.

Description

technical field [0001] The invention relates to the technical field of centrifuge rotor positioning, in particular to a method for positioning and controlling the deflection state of the centrifuge rotor through an intelligent algorithm. Background technique [0002] The existing centrifuge rotor will stop slowly after each round of operation, and a certain rotation angle will be randomly generated. This randomly generated rotation angle will cause the coordinates of each sample well to be not fixed relative to the coordinates of the rotor center each time the sample is loaded, so the pre-recorded operating program cannot be directly used to perform sample loading, which hinders the automation of this step. The current mainstream solution is to achieve positioning by modifying the hardware of the instrument. Typical solutions include the 2017 patent CN206483587U, a centrifuge with a positioning control mechanism, and the 2019 patent CN109499785A, an automatic positioning mec...

Claims

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Application Information

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IPC IPC(8): B04B13/00
CPCB04B13/00
Inventor 王军张数一辛安洪仕诚
Owner 深圳市奥极因科技有限公司