135 results about "Ion sensor" patented technology

The invention discloses a large-scale pig breeding wastewater purification treatment system, and relates to the technical field of wastewater treatment.The large-scale pig breeding wastewater purification treatment system is characterized in that the ion concentration of anaerobic liquid is monitored through a multi-ion sensing array, and a multi-channel feeding system is controlled to synthesize customized struvite compound fertilizer; the AI prediction control unit predicts the optimal medicament dosage and realizes millisecond-level closed-loop regulation; the multi-dimensional synergistic biochemical treatment module comprises an A / O biochemical treatment unit and an electric field enhanced anaerobic ammonia oxidation reactor, the electric field enhanced anaerobic ammonia oxidation reactor applies a direct-current electric field through an electrode pair, and engineering conductive biochar is used as a carrier to accelerate microbial metabolism; the sludge low-temperature pyrolysis self-consistent circulation module is used for pyrolyzing and converting residual sludge into biochar, biofuel and wood vinegar, and the biochar activation treatment unit is used for preparing engineering conductive biochar and forming a substance closed loop through a self-consistent circulation conveying system; and the digital twinning intelligent management and control platform realizes intelligent management and control of the system.

The invention discloses a temperature correction method of a chloride ion sensor, which comprises the following steps of: S1, arranging a micro array type chloride ion sensor of a pre-embedded concrete protective layer in an array mode, and determining an acquisition scheme; s2, carrying out anomaly detection on a MnO2 reference electrode in the micro array chloride ion sensor; s3, correcting an acquired potential value of the micro array type chloride ion sensor; s4, according to the Nernst potential-concentration logarithm linear relation, determining various coefficients of the standard equation under the control temperature in the concrete; and S5, determining a temperature compensation coefficient according to the Nernst potential-concentration logarithm linear relationship. And S6, calculating the concentration distribution condition of chloride ions at different depths in the concrete by using the sensor potential after temperature compensation. According to the invention, the influence of temperature on the measurement result of the chloride ion sensor can be effectively compensated, the potential abnormal interference in the measurement process of the sensor is effectively overcome, and the precision and reliability of the sensor are improved.

The invention provides a non-invasive high-precision blood glucose sensor and a preparation method thereof. The blood glucose sensor comprises two symmetrical sensing areas prepared on a flexible substrate layer, each sensing area comprises a glucose sensor working electrode, a glucose sensor auxiliary electrode / reference electrode, a sodium ion sensor working electrode, a pH sensor working electrode and a sodium ion / pH sensor common reference electrode; the electrodes are distributed in an axial symmetry mode along the central axis of the sensor plane and are prepared through silk-screen printing. Due to the symmetrical structural design of the blood glucose sensor, the electrode polarity of the extraction electrode can be exchanged during two adjacent times of extraction so as to reduce electrode consumption and skin stimulation, the change of the extraction amount of intercellular fluid can be corrected by the integrated sodium ion and pH sensor, and therefore high-precision blood glucose monitoring is achieved.

An ion sensor is disclosed that includes an ion selective electrode including a first internal solid layer including a first insertion material, and a first ion conductive ceramic, an ion selective membrane provided on the first internal solid layer, a reference electrode including a second internal solid layer including a second insertion material, and a second ion conductive ceramic, an ionic liquid containing membrane provided on the second internal solid layer, and an insulator on which the ion selective electrode and the reference electrode are arranged.

The invention belongs to the technical field of environment monitoring, and particularly relates to a portable fixed source condensable particulate matter online monitoring device and a use method. The device comprises a semiconductor refrigeration module, seven peristaltic pumps, a liquid storage tank, a PLC, three liquid level sensors, a conductivity sensor, a conductivity detection pool, a pH sensor, a pH detection pool, an ammonium ion sensor, an ammonium ion detection pool, a pH adjusting module, a reaction pool, an alkali liquor bottle, a stirring motor and the like. The device can monitor the concentration of the condensable particulate matters in the flue gas on line, and the pipeline is simple and effective to clean. The device is low in investment cost, convenient to sample and carry, small in occupied area, light in weight and low in maintenance cost; the sampling process is highly automatic, and the equipment burden of environment monitoring personnel is reduced; the defects that in the prior art, the monitoring process is complex, online monitoring is not supported, and the size and weight are large are effectively overcome. The method can be widely applied to on-line monitoring of condensable particulate matters of stationary pollution sources.

The disclosure provides an integrated sensor probe 100 irradiated by an optical source 101 for detecting optical absorbance of lead ions (Pb(II)) in preference to other heavy metal ions in a sample 107 using a photodetector 106. The sensor probe 100 includes a fiber optic probe 102 with a U-bent sensing portion 103 and a photodetector 106. The U-bent sensing portion 103 includes surface immobilized gold nanoparticles (AuNP) 104 deposited with a metal-organic framework (MOF-5) 105. A method to fabricate an integrated sensor probe 200 to determine lead ions [Pb(II)] in a fluid sample in preference to other heavy metal ions is also disclosed. The probe 100 determines Pb(II) ion concentration in a range of 0.5 ppb to 50 ppm. The probe is easy to use, facile, cost- effective and the method enables efficient on-site lead ion detection.

A soil chemistry sensor employs a hydrophilic porous layer to adapt aqueous ion sensors to direct soil measurement by allowing transfer and concentration of water from the soil to the sensing electrodes while blocking electrically charged soil colloidal particles that can interfere with such measurements.

The invention relates to the technical field of smoke sensors, in particular to a smoke sensor detection device and a detection method thereof.The smoke sensor detection device comprises a mounting base, a mounting frame is fixedly connected to the top of the mounting base, a first mounting plate and a control module are fixedly connected into the mounting base, and an audible and visual alarm is fixedly connected to the exterior of the mounting base; a temperature sensor, a humidity sensor, an air pressure sensor, an airflow velocity sensor, a laser diode, a photodiode and a dual-electrode ion sensor are fixedly connected outside the first mounting plate; the temperature sensor, the humidity sensor, the air pressure sensor, the airflow velocity sensor, the laser diode, the photodiode and the dual-electrode ion sensor are electrically coupled with the control module; according to the system, temperature, humidity, pressure and airflow parameters are collected through multiple types of high-precision sensors, and then the false alarm probability can be reduced through control analysis of the control module.

The invention relates to a dual-mode paper-based sweat chloride ion sensor, a preparation method and application of the dual-mode paper-based sweat chloride ion sensor in rapid diagnosis of cystic fibrosis, and belongs to the crossing field of a biomedical detection technology and electrochemical / optical sensing materials and devices. The dual-mode paper-based sweat chloride ion sensor is composed of a colorimetric detection module and an electrochemical detection module. According to the invention, by optimizing the collaborative design of the colorimetric module and the electrochemical module and combining the integrated process of the silver nitrate / potassium chromate sensitive layer and the screen-printed electrode, the detection sensitivity limit is remarkably broken through, and the integrated process from preliminary screening to clinical definite diagnosis is realized. More importantly, a low-cost cellulose substrate and a silk-screen printing process are adopted, the single-time detection cost is lower than 0.1 dollar, the 180-second quick response characteristic is combined, the method completely meets the economical, practical, high-sensitivity, good-specificity, simple and quick to operate and repeatable diagnosis standards proposed by WHO, and the method is suitable for instant detection scenes of basic medical institutions.

The invention discloses an ion sensor state prediction and correction method and system based on mechanism modeling, and relates to the technical field of sensor state monitoring and predictive maintenance, and the correction method comprises the steps: obtaining the original information of an ion sensor in a historical time period; then signal preprocessing is carried out, parameter estimation is carried out based on an extended Nernst model and a state estimation algorithm, and parameter evaluation indexes are obtained; calculating the health index and the remaining service life of the ion sensor; making a correction strategy; according to the method and the system provided by the invention, intelligent health management, accurate life prediction and dynamic performance correction of the ion sensor are realized on the basis of the extended Nernst model and state estimation by utilizing a machine learning algorithm, digital signal processing and adaptive control, and important technical support is provided for wide application of the ion sensor.

This invention belongs to the field of earthquake monitoring technology, specifically relating to an online chloride ion monitoring device for earthquake precursor observation. It includes a base frame and a control cabinet and drive mechanism mounted on the base frame, as well as a chloride ion sensor and a central controller. The central controller is installed inside the control cabinet and is communicatively connected to the drive mechanism and the chloride ion sensor. The drive mechanism drives the chloride ion sensor to move up and down. When the chloride ion sensor descends into groundwater, it monitors the chloride ion concentration in the groundwater. This invention uses a drive mechanism to periodically drive the chloride ion sensor down into the groundwater, achieving timed measurement of chloride ions in the groundwater. This avoids the chloride ion sensor being immersed in excessively hot groundwater for extended periods, further extending its service life. It also achieves online non-destructive sampling, unaffected by manual or pipeline sampling, thus achieving real-time monitoring.

The present application discloses a control method for a gas wall-mounted boiler and a gas wall-mounted boiler adopting the control method. The gas wall-mounted boiler has only one air pressure switch and the blower has two operating states. The control method includes the following steps: in the startup stage of the gas wall-mounted boiler, the blower operates at the pre-purging wind speed and enters the first monitoring mode; and after confirming that the gas wall-mounted boiler is suitable to enter the continuous operation stage, it enters the second monitoring mode; wherein, in the first monitoring mode, only the information of the air pressure switch is monitored, and in the second monitoring mode, the information of the air pressure switch or the information of the ion sensor is monitored according to the current operating state of the blower.

The invention provides a monatomic regulation and control chemiluminescence detection fluorine ion sensor, a preparation method and application, and relates to the technical field of chemiluminescence detection sensors, the monatomic regulation and control chemiluminescence detection fluorine ion sensor comprises a silicon dioxide coated monatomic copper-calcium oxide nanoparticle composite material, an F <->-containing aqueous solution reaction tank, a microwell plate and a chemiluminescence analyzer; dispersing the obtained palladium nanoparticle-calcium oxide nanoparticle composite material wrapped by silicon dioxide into F <->-containing aqueous solutions with different concentrations, heating to react for a set time, adding a proper amount of the mixed solution into a 96 microwell plate, putting the 96 microwell plate into a cassette of a chemiluminescence analyzer, adding a proper amount of luminol to initiate a reaction, and detecting the concentration of the palladium nanoparticle-calcium oxide nanoparticle composite material. The chemiluminescence intensity is recorded through a chemiluminescence analyzer, a working curve is drawn, and quantitative analysis of F <-> is achieved.

The utility model belongs to the field of negative ion detection technology discloses air negative ion automatic observation appearance, including the casing, the inside fixed mounting of casing has negative ion sensor and controller, negative ion sensor sets up two, can alternately use two negative ion sensors all with controller electricity is connected, the side fixed embedding of controller has display screen, display screen and controller electricity is connected, the utility model sets up two alternately usable negative ion sensors, through controller time -sharing switch working condition. When one sensor detects, another can start fan reversal and carry out self -cleaning, avoid single sensor failure and lead to equipment shutdown, satisfy long -term continuous monitoring demand, reduce maintenance influence to monitoring continuity, the reverse convex sealing ring between lower porcelain cover and lower insulating cover is under the spring pressure effect, closely fits lower porcelain cover inner wall and lower insulating cover bottom, effectively prevents air leakage, guarantees the detection airflow stability.

1. The name of this design product: sodium ion sensor (1). 2. Purpose of this design product: It has a spherical sodium ion selective glass membrane and is used in conjunction with a reference electrode to measure the sodium ion content in water samples. 3. The key point of the design of this product lies in its shape. 4. The picture or photo that best illustrates the design points: three-dimensional picture.

A living-physics measurement and control system integrates a sensor array, analog front-end, controller module, and feedback actuator network to enable real-time quantification and modulation of energetic organization in open systems. The sensor array comprises thermal, mechanical / vibration, electrical / ionic, and optical sensors, providing multimodal data to the firmware and signal-processing unit. The controller module executes a coherence and entropy feedback control method, which includes system calibration, acquisition of synchronized sensor data, computation of order metrics such as coherence, entropy production, and information flux, and evaluation of energetic organization state. The feedback actuator network, including thermal actuators, mechanical actuators, ionic pumps, and optical emitters, receives actuator command set to dynamically adjust energy flow. The system generates quantitative metrics linking coherence, entropy, and information flow, enabling adaptive feedback to preserve or optimize functional order. The invention addresses the lack of integrated instrumentation and feedback for self-organizing, regenerative stability in open systems.

This invention provides a multi-channel structure for a rapid, highly selective water-voltaic ion sensor, its fabrication method, and its applications. The sensor comprises a multi-channel sandwich-structured fiber membrane, a gradient polarization interface, and an electrode assembly. The multi-channel sandwich-structured fiber membrane includes a first macroporous layer, an intermediate microporous layer, and a second macroporous layer stacked sequentially, dividing the membrane into multiple independent sensing channels on a plane. The gradient polarization interface exhibits different degrees of interface polarization in different sensing channels. The electrode assembly connects to both ends of each sensing channel. The rapid, highly selective water-voltaic ion sensor provided by this invention utilizes a sandwich structure to form ion transport channels with rapid transport at both ends and precise sieving in the middle. This allows for the synergistic enhancement of both rapid ion transport and high-sensitivity response. Furthermore, by constructing differentiated sensing channels with "identical structures but different interfaces," the sensor synergistically amplifies and identifies differences in the intrinsic properties of ions, significantly improving ion selectivity.

This invention discloses a lead-ion sensor and method based on a liquid crystal whispering-gallery mode resonator. The sensor includes a functionalized liquid crystal glass microbubble and a tunable scanning laser, a single-mode fiber, a tapered fiber, and a power meter sequentially connected via a single-mode fiber. The tapered fiber is disposed on one side of the functionalized liquid crystal glass microbubble, which contains interface modifications for capturing single-stranded DNA. The resonant light field signal enters the power meter, which obtains a spectrum. The spectral signal in the liquid crystal whispering-gallery mode spectrum initially exhibits a red shift, followed by a blue shift. The spectral shift is the sum of the red and blue shift values. Lead ion detection is achieved by measuring the spectral shift in the liquid crystal whispering-gallery mode. 2+ High-resolution sensing. Compared with existing technologies, this invention overcomes the defect of small spectral drift in WGM, thereby triggering stronger spectral changes to achieve a lower detection limit, and is integrable.

The embodiment of the invention relates to a method for measuring the chloride ion concentration in water-based drilling fluid, which comprises the following steps: acquiring the voltage of a chloride ion sensor in various standard liquids with known concentrations at a preset constant temperature, and establishing a calibration corresponding relation between the voltage and the chloride ion concentration; diluting a to-be-detected water-based drilling fluid sample into a to-be-detected mixed solution according to a fixed proportion; and maintaining the to-be-measured mixed solution at the constant temperature, measuring the voltage of the to-be-measured mixed solution by using a chloride ion sensor, determining the concentration value of the to-be-measured mixed solution based on the calibration corresponding relation, and calculating the actual chloride ion concentration value of the water-based drilling fluid by combining the fixed proportion. According to the embodiment, a traditional chemical titration agent is abandoned, the potential safety hazard that an operator makes contact with toxic strong acid and carcinogenic potassium chromate is eliminated, the water-based drilling fluid to be detected is adjusted to the optimal linear range of a chloride ion sensor through quantitative dilution, and the detection efficiency and timeliness are greatly improved.

An ion sensor includes a substrate and a plurality of detection portions. Each detection portion includes an ID portion, an ICG electrode, a TG electrode, an SG electrode, an electrode pad, and an ion-sensitive membrane. The SG electrode is disposed between the ICG electrode and the TG electrode on a main surface of the substrate. The electrode pad is electrically connected to the SG electrode and is disposed on an opposite side of the substrate from the SG electrode. The ion-sensitive membrane is disposed on a surface of the electrode pad and changes in potential in response to changes in ion concentration of an aqueous solution in contact with the ion-sensitive membrane. The width of the ion-sensitive membrane in a direction opposite the ICG electrode and the TG electrode is greater than the separation width of the ICG electrode and the TG electrode.

The invention discloses a method for detecting heavy metal ions in chemical sewage. The method comprises the following steps: 1, collecting a sample; 2, sample pretreatment, precipitate removal and pH adjustment; step 3, separating and enriching the pretreated water sample by adopting a solid-phase extraction (SPE) technology, eluting heavy metal ions by using an eluting solvent, and collecting an eluent; and 4, modifying an electrode by using the functionalized nano material, preparing a heavy metal ion sensor, and reacting the enriched sample with the sensor to detect heavy metal ions. 5, meanwhile, adding a specific fluorescent probe into the enriched liquid, and reacting at a certain temperature to form a compound of heavy metal ions and generate a fluorescent signal; measuring the fluorescence intensity by using a fluorospectro photometer, and establishing a standard curve; according to the method disclosed by the invention, high sensitivity, selectivity and rapid detection of heavy metal ions are realized by combining solid-phase extraction, multiple reactions and an electrochemical sensor technology. The operation is simple, economical and practical.

The utility model provides a digital VOC (Volatile Organic Compound) gas sensor which comprises a bottom shell, a PID (Proportion Integration Differentiation) photoion sensor and a control circuit board, the upper end of the bottom shell is of an open structure, and the lower end of the bottom shell is provided with a flat cable port communicated with the interior. The control circuit board is fixed in the bottom shell and is electrically connected with an external flat cable through the flat cable port; a pin of the PID photoion sensor is inserted into the bottom shell through the upper end of the bottom shell and is detachably and electrically connected with the control circuit board, and a detection end of the PID photoion sensor is exposed out of the upper end of the bottom shell; according to the VOC gas sensor, the use of the VOC gas sensor is not affected, meanwhile, a worker can conveniently disassemble and assemble the PID photoion sensor in a plugging and unplugging mode, whether an external flat cable goes wrong or not can be checked through the flat cable port, the structure is simple, and the worker can conveniently maintain and calibrate the VOC gas sensor.

The invention relates to the field of water quality monitoring, in particular to an intelligent underwater robot water quality monitoring system suitable for a complex watershed, which comprises a sensing and positioning module, a navigation and obstacle avoidance module, a water quality monitoring module, a transmission state information and monitoring data and a central control module. Various water quality monitoring sensors such as a pH sensor, a dissolved oxygen sensor and a heavy metal ion sensor are arranged, advanced navigation and obstacle avoidance technologies such as sonar navigation and visual identification obstacle avoidance are utilized, the robot can autonomously plan paths in a complex underwater environment and reach a specified monitoring point position, the robot collects water samples in real time and analyzes water quality parameters, and the water quality monitoring precision is improved. Data are transmitted to a shore base station through a wireless communication module, and meanwhile, the shore base station can remotely control the robot to move according to the real-time condition of a drainage basin, and a monitoring strategy is adjusted.

The invention discloses a piezoelectric interface modified piezoelectric ion sensor and a preparation method and application thereof, and belongs to the field of flexible piezoelectric ion sensors, multiwalled carbon nanotubes are dispersed in NMP to form a suspension, and vacuum filtration and drying are performed to obtain a multiwalled carbon nanotube film; the BPNA powder is dissolved in a DMF / ethanol solution, and BPNA crystals are obtained through a liquid-liquid diffusion method; dissolving PEO in deionized water to obtain a PEO solution; adding the BPNA crystal into the PEO solution to obtain a PEO / BPNA dispersion liquid; adding ionic liquid into the PEO solution to obtain PEO / IL dispersion liquid; pouring the PEO / BPNA dispersion liquid on a glass plate to obtain a PEO / BPNA layer; a PEO / IL dispersion liquid is poured on the PEO / IL layer to form a PEO / IL middle layer; and pouring a PEO / BPNA layer on the multi-walled carbon nanotube electrode film layer to obtain an electrolyte, and laminating two multi-walled carbon nanotube electrode film layers on two sides of the electrolyte to obtain the assembled sensor.

A thermal runaway detection system for a battery cell includes a battery cell enclosure including a lid portion and a bottom portion. A battery electrode stack is arranged in the battery cell enclosure and includes anode electrodes, cathode electrodes, and separators. An ion sensor arranged in the battery cell enclosure and including a first electrode and a second electrode configured to detect ions in gas passing there between.

The utility model discloses a combined type ion sensor which comprises a main body, an anti-bending sheath is installed at the upper position in the main body, a cable is arranged at the inner position of the anti-bending sheath, a reference electrode hole and a temperature hole are formed in the upper end position of an electrode support, and the temperature hole is communicated with the reference electrode hole. A reference electrode A is mounted in the reference electrode hole in an inserted manner, and an ion electrode A is mounted on the inner side of the electrode bracket. The device adopts a new structural design, the ion electrode, the reference electrode and the temperature sensor are integrated in one structure, so that the size of the sensor is effectively reduced; the core of the ion electrode is an ion selective membrane which can be directly screwed on a butt joint thread of the ion electrode through a thread, the reference electrode adopts a glass structure with the diameter of six millimeters and is directly fixed in a reference electrode hole through soft silica gel, and the temperature sensor adopts a metal structure with the diameter of three millimeters and is fixed in a temperature hole through soft silica gel.

The utility model discloses a multi-stage calcium impurity filtering device for industrial silicon smelting, relates to the technical field of silicon smelting and purification, and provides an integration scheme comprising a pressure vessel tank body, a gradient filtering layer, an air-water backflushing system and an intelligent control module aiming at the problems that the existing single-stage filtering calcium retention rate is low, a medium is easy to harden and equipment is seriously corroded. A water inlet pipe and a water outlet pipe are symmetrically arranged on the side wall of the tank body, an anthracite layer, a quartz sand layer, an aluminum oxide layer and a magnetite layer are arranged in the tank body from top to bottom and are separated by honeycomb-shaped stainless steel supporting partition plates with water through holes, and a sintered metal supporting plate is arranged at the bottom; a backwashing water outlet pipe is arranged at the top of the tank, a compressed air pipe is connected to the side wall, and a control system comprising a PLC, a calcium ion sensor and a pressure difference transmitter is arranged outside the tank. During working, liquid is intercepted, adsorbed and magnetically captured step by step through four-stage media, and the removal rate of calcium impurities is larger than or equal to 98.5%; in the backwashing stage, blockages are removed through 0.4 MPa gas-water mixed pulse, the backwashing period is prolonged to 12-15 hours, and the energy consumption is reduced by 40%.

The invention relates to optochemical ion sensors having an antifouling coating containing zinc ethylenebis(dithiocarbamate) as a biocidal active substance in a matrix of a water-insoluble, water-swellable hydrogel which is ion-permeable in the swollen state, and to a method for the production thereof.

To provide a method of manufacturing ion sensors with reduced drift, and others.SOLUTION: An ion sensor manufacturing method disclosed herein comprises a first voltage application step of applying a first voltage to a gate to an ISFET (Ion Sensitive Field Effect Transistor), and a light irradiation step of irradiating the ISFET with light while being applied with the first voltage.SELECTED DRAWING: Figure 1