Liquid bottle detection system and its application method
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A technology of detection system and liquid bottle, which is applied in the field of liquid volume detection system of chemiluminescence immunoassay analyzer, can solve the problems affecting the accuracy of test results, and achieve the effect of avoiding inadequate monitoring and ensuring accuracy
Active Publication Date: 2022-02-22
SUZHOU HYBIOME BIOMEDICAL ENG CO LTD
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[0003] In chemiluminescence immunoassay, the substrate liquid provides a reaction environment and a catalyst for the chemical reaction. The monitoring of the liquid volume state of the substrate liquid can effectively ensure that the reaction conditions are sufficient and the correct test results can be obtained. Correspondingly, once the liquid of the substrate liquid is Insufficient quantity status monitoring will affect the accuracy of test results
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specific Embodiment 1
[0045] Such as figure 1 As shown, the embodiment of the present invention provides a liquid volume detection system suitable for a chemiluminescence immunoassay analyzer, including a container, a probe, a metal plate, a voltage-controlled oscillator, a Schmidt trigger, a timer, an MCU module, where:
[0046] The probe is installed inside the container as the first electrode, and the metal plate is installed at the bottom of the container as the second electrode;
[0047] The probe and the metal plate are respectively connected to the voltage-controlled oscillator, and the voltage-controlled oscillator, Schmitt trigger, timer, and MCU module are connected sequentially;
[0048] The voltage-controlled oscillator monitors the capacitance change between the electrodes through the probe and the metal plate, and outputs the capacitance change signal to the Schmitt trigger;
[0049] The Schmitt trigger shapes the waveform of the capacitance change signal and sends the shaped capaci...
specific Embodiment 2
[0063] Such as figure 2 As shown, the embodiment of the present invention provides an application method of the liquid volume detection system of the liquid bottle suitable for the chemiluminescence immunoassay analyzer in the specific embodiment 1, including:
[0064] Monitoring step S101, the voltage-controlled oscillator monitors the capacitance change between the electrodes through the probe and the metal plate, and outputs the capacitance change signal to the Schmitt trigger;
[0065] Shaping step S102, the Schmitt trigger shapes the waveform of the capacitance change signal and sends the shaped capacitance change signal to the timer;
[0066] Timing step S103, the timer uses the reshaped capacitance change signal as an external clock source, and outputs the timer value to the MCU module;
[0067] Calculation step S104, the MCU module calculates the pulse frequency of the capacitance change signal per unit time by calculating the timer value per unit time;
[0068] Sel...
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Abstract
The invention discloses a liquid volume detection system of a liquid bottle suitable for a chemiluminescence immunoassay analyzer and an application method thereof, which can detect the liquid volume in a container based on the principle of capacitance detection, and a probe wrapped in a ceramic material is assembled in the substrate bottle as an electrode. A metal plate is installed at the bottom of the bottle as another electrode, and the electrode is connected to a voltage-controlled oscillator as an oscillating capacitor input. The output of the voltage-controlled oscillator is connected to a Schmitt trigger to shape the waveform of the capacitance change signal, and the shaped waveform is used as a timing The external clock source of the device, by calculating the timer value per unit time, calculates the pulse frequency per unit time; after counting the pulse frequency in the state of liquid and no liquid, a reasonable frequency can be selected as the judgment threshold; after that, when the frequency exceeds the threshold That is, it is determined that there is no liquid in the container, and the corresponding alarm prompts and other processes are implemented to avoid the situation that the monitoring of the liquid volume state of the substrate liquid is not in place, and to ensure the accuracy of the test results.
Description
technical field [0001] The invention relates to the technical field of medical devices, in particular to a liquid volume detection system for a liquid bottle suitable for a chemiluminescence immunoassay analyzer and an application method thereof. Background technique [0002] At present, the most widely used diagnostic method in the medical field—in vitro diagnosis, refers to the collection of body fluids, excreta, and secretions of the human body for chemical composition or chemical reaction analysis, so as to determine human lesions, such as chemiluminescence analysis and molecular diagnosis. These diagnostic methods all use automatic or semi-automatic instruments to add samples, analyze, and give diagnostic reports. [0003] In chemiluminescence immunoassay, the substrate liquid provides a reaction environment and a catalyst for the chemical reaction. The monitoring of the liquid volume state of the substrate liquid can effectively ensure that the reaction conditions are ...
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