Liquid bottle liquid quantity detection system and 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: 2019-04-23
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
[0044] 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:
[0045] 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;
[0046] 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;
[0047] 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;
[0048] The Schmitt trigger shapes the waveform of the capacitance change signal and sends the shaped capaci...
specific Embodiment 2
[0061] 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:
[0062] 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;
[0063] Shaping step S102, the Schmitt trigger shapes the waveform of the capacitance change signal and sends the shaped capacitance change signal to the timer;
[0064] 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;
[0065] 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;
[0066] Sel...
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Abstract
The invention discloses a liquid bottle liquid quantity detection system applicable to a chemiluminescence immunoanalyzer and an application method of the liquid bottle liquid quantity detection system. Liquid quantity detection in a container can be conducted based on a capacitance detection principle, a probe coated with a ceramic material is assembled in a substrate bottle as an electrode, a metal plate is installed at the bottom of the bottle as the other electrode, the electrodes are connected to a voltage-controlled oscillator as oscillator capacitance input, the output end of the voltage-controlled oscillator is connected with a schmitt trigger to shape the waveform of a capacitance change signal, the shaped waveform is taken as a timer external clock source, and by calculating a timer value per unit time, a pulse frequency per unit time is calculated; the pulse frequencies in the liquid and liquid-free states are calculated, and then the reasonable frequency can be selected asa judgment threshold; and later, when the frequency exceeds the threshold, no liquid in the container is determined, the corresponding alarming prompting and other processes are executed, the condition of inadequate monitoring of the liquid quantity state of substrate liquid is avoided, and the accuracy of test results is ensured.
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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