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Methods of Analytical Instrument Process Programming and Control

An analytical instrument and process technology, applied in the field of programming and control of the analytical instrument process, can solve problems such as the inability to realize flexible process programming, and achieve the goal of shortening the development and testing cycle, enhancing flexibility and scalability, and improving R&D efficiency. Effect

Active Publication Date: 2011-12-07
河北华厚天成环保技术有限公司
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  • Summary
  • Abstract
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Problems solved by technology

[0004] Since the analysis process is solidified in the control software, after the instrument leaves the factory, the system can only provide a small number of parameter entries to allow the user to select, tailor or change the operating parameters of the process. When the user needs to adjust the sequence of the analysis process according to the site conditions When adjusting back and forth, changing logic jump conditions, or even redesigning, designers often need to re-code the control software and compile it, which cannot achieve flexible programming of the process

Method used

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Examples

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Embodiment Construction

[0042] A water quality analysis instrument is used to detect the concentration of heavy metal ion hexavalent chromium in water samples. The basic analysis principle is colorimetry, and the detection method is standard curve method. The specific detection process is divided into two steps: curve calibration and water sample measurement: first, the difference in absorbance before and after color development of a blank standard solution is measured as ΔA 0 , and then measured to contain a certain concentration of hexavalent chromium ions C 1 The difference in absorbance of the standard solution before and after color development is ΔA 1 , using the concentration of the blank standard solution, C 1 , ΔA 0 and ΔA 1 A standard curve can be made, which is usually called curve calibration; based on the Lambert-Beer law of colorimetric analysis, if the difference in absorbance of the solution to be tested is measured as ΔA before and after color development, the six The chromium io...

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Abstract

The invention relates to a method for programming and controlling a flow of an analytical instrument. The method comprises the step of abstractly dividing the instrument into a primary flow control unit and a plurality of subfunction units according to functions, wherein each task flow is sequentially arranged by sub flows of each subfunction unit; and simultaneously, the information of all the task flows and the sub flows of the instrument is recorded in a flow configuration file and is editable. By the method, the functions of the instrument are expanded, the flexibility and the expandability of the instrument are enhanced, and a technological base is offered to an instrument producer for rapidly providing a flow customized service for a user at a low cost.

Description

technical field [0001] The invention relates to an instrument flow control method, in particular to a method for programming and controlling the flow of an analysis instrument. Background technique [0002] The workflow of analytical instruments can generally be divided into ten functions (or called sub-processes) of sampling, pretreatment, sample injection metering, mixing, digestion reaction, determination, cleaning, data processing, display and communication. Existing analytical instruments all use a system framework of one or more controllers plus several actuators and sensors to implement the control of the above-mentioned functions. The analysis process is solidified in the control software, or only a few parameters are provided. To allow designers or users to tailor the process or change operating parameters. [0003] The above known designs have the following disadvantages: [0004] Since the analysis process is solidified in the control software, after the instrum...

Claims

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Application Information

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IPC IPC(8): G06F9/44
Inventor 李志超
Owner 河北华厚天成环保技术有限公司
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