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Analog measurement method, measured data fitting method and chemiluminiscence tester

A measurement method and technology for measuring data, applied in the field of medical devices, can solve problems such as large counting errors, and achieve the effects of reducing counting errors, reliable measurement, and good linearity

Active Publication Date: 2019-04-02
SHENZHEN NEW INDS BIOMEDICAL ENG
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] Based on this, it is necessary to provide an analog measurement method, a measurement data fitting method and a chemiluminescence detector that can effectively improve the counting accuracy for the problem that the traditional single-photon counting method has a larger counting error when the optical signal intensity is higher.

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  • Analog measurement method, measured data fitting method and chemiluminiscence tester
  • Analog measurement method, measured data fitting method and chemiluminiscence tester
  • Analog measurement method, measured data fitting method and chemiluminiscence tester

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Embodiment Construction

[0034] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the associated drawings. Preferred embodiments of the invention are shown in the accompanying drawings. However, the present invention can be embodied in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the understanding of the disclosure of the present invention will be thorough.

[0035] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field of the invention. The terminology used herein in the description of the present invention is for the purpose of describing specific embodiments only, and is not intended to limit the present invention. It can be understood that the terms "first", "second", etc. used in the present invention may be used here...

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Abstract

The invention relates to an analog measurement method, a measured data fitting method and a chemiluminiscence tester. The analog measurement method comprises the following steps: acquiring a direct current signal output by an incident photon in an optical signal after being enhanced and amplified by a photomultiplier; converting the direct current signal output by the photomultiplier into a voltage signal through a direct current amplifier, and filtering the voltage signal via a filtering circuit to output a filtered voltage signal; acquiring a first voltage value at a preset starting time point and a second voltage value at a preset ending time point, calculating a difference value of the second voltage value and the first voltage value by an analog-to-digital converter, and outputting ananalog-to-digital conversion value; and calculating a first analog count value of the optical signal according to the analog-to-digital conversion value. Through the above method, it is ensured thatgood linearity is obtained when counting optical signals of different intensities, the counting errors are reduced, and the measurement of the optical signal by a chemiluminescence analyzer is more reliable.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to an analog measurement method, a measurement data fitting method and a chemiluminescence measuring instrument. Background technique [0002] Chemiluminescence immunoassay (CLIA) is a combination of high-sensitivity chemiluminescence assay technology and high-specificity immune response. This technology is mainly used to detect and analyze the content of various antigens, antibodies, hormones, markers and other trace substances. The fully automatic chemiluminescent immunoassay analyzer is developed on this basis. By adding specific reagents to the liquid to be tested to form an antigen-antibody mixture, an optical signal is generated under the action of an external excitation reagent, and the optical signal is measured by a photomultiplier tube. The measurement result data is fitted and analyzed to detect the content of the substance to be tested in the liquid. [0003] A...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01J11/00G01N21/76
CPCG01J11/00G01N21/76G01N21/763
Inventor 饶微胡毅张会生尹力汤俊辉邱小明
Owner SHENZHEN NEW INDS BIOMEDICAL ENG
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