51 results about "Ion sensor" patented technology

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 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 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.

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.

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 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.

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.

The application provides a high-sensitivity ion sensor based on a Schottky heterojunction and a preparation method, and mainly solves the problems of a complex structure, many layers, poor inspection sensitivity and a difficult preparation process of an existing sensor. The scheme of the application includes a platinum / silicon Schottky heterojunction, a functionalized sensitive layer and a double-terminal working electrode. A platinum film is deposited on a silicon substrate by magnetron sputtering to form the platinum / silicon Schottky heterojunction; the functionalized sensitive layer contains an ion probe which can selectively bind heavy metal ions; and the current signal of the sensor chip is read by the working electrode at both ends of the platinum / silicon Schottky heterojunction. The sensor has the characteristics of simple structure, convenient manufacturing process and specific and rapid identification of heavy metal ions, and avoids the problem of the influence of the use of a reference electrode on the sensing performance.

This disclosure describes multi-fluid kits for three-dimensional printing, three-dimensional printing kits, and methods of sensing metal ions using three-dimensional printed ion sensors. In one example, a multi-fluid kit for three-dimensional printing can include a fusing agent and an ion-sensing agent. The fusing agent can include water and an electromagnetic radiation absorber. The electromagnetic radiation absorber can absorb radiation energy and convert the radiation energy to heat. The ion-sensing agent can include water and a redox-active inorganic salt.

The invention discloses an air quality detection device with a telescopic sampling function, and relates to the technical field of air quality detection.The air quality detection device comprises a detection frame and a vacuum pump, a detection module is arranged in the detection frame, a sensor module is installed at the bottom of the detection module, and an exhaust pipe is arranged at one end of the detection frame; the vacuum pump is arranged at one end of the exhaust pipe, and a sampling pipe is mounted at the other end of the detection frame. The air quality detection device capable of sampling telescopically adopts a negative pressure sampling design, the detection frame is vacuumized through the vacuum pump to form stable negative pressure, an air sample quickly enters the detection frame without interference by using atmospheric pressure difference, and the sample can be sealed and isolated through cooperative control of the electric valve I and the electric valve II, so that the sample is prevented from being mixed with external air; and a sensor module consisting of a laser scattering sensor and a PID optical ion sensor is combined, so that the concentration of harmful gases such as particulate matters and VOCs can be accurately detected, and the accuracy and authenticity of sampling and detection data are comprehensively ensured.

The invention relates to a polymer (lithium ion carrier) with a structure as shown in a formula I. Compared with a commercial lithium ion carrier, the lithium ion carrier disclosed by the invention has better whole blood detection accuracy, better lithium ion selectivity and anti-interference effect and better thermal stability on the premise of not influencing a linear relation. The lithium ion selective membrane electrode prepared from the lithium ion carrier or the lithium ion sensor has excellent accuracy in detection of lithium ion concentration in blood, aqueous solution or seawater samples. Formula I

Aspects of the present disclosure provide techniques for measuring an ion concentration level of a user of a wearable device. An example method performed by the wearable device includes applying, using a potentiostat of the wearable device, a bias voltage to an ion selective electrode (ISE) of a transcutaneous ion sensor of the wearable device, measuring a current associated with the ISE of the transcutaneous ion sensor, adjusting the bias voltage based on the measured current associated with the ISE until the measured current is within a threshold range, determining, based at least in part on the measured current, the ion concentration level of the user, and transmitting an indication of the ion concentration level of the user to a display device for display to the user.

The application provides an ion sensing slurry and a preparation method thereof, a textile ion sensor and a preparation method and application thereof, and relates to the technical field of sensors.The ion sensing slurry provided by the application comprises graphene, water-based polyurethane and silk fibroin; the mass of the silk fibroin is 5-25% of the total mass of the graphene and the water-based polyurethane; and the mass of the graphene is 5-15% of the total mass of the graphene and the water-based polyurethane.The ion sensing slurry provided by the application has the function of ion sensing, is printed onto the surface of a fabric, and the obtained textile ion sensor can effectively detect urine protein in urine, realizes the monitoring of human life and health, and has good mechanical strength and bending resistance.

This invention relates to a real-time cell metabolism measurement device for measuring metabolic cells in a cell culture flask. It includes a pump mechanism and a first chamber and a second chamber sequentially connected to the outlet of the pump mechanism. The inlet of the pump mechanism is used to connect to the cell culture flask, and the second chamber has an outlet for connecting to the cell culture flask. It also includes necessary connecting pipes to form a circulation path between the pump mechanism, the first chamber, the second chamber, and the cell culture flask. The first chamber is equipped with probes for at least three of the following sensors: a pH sensor, a dissolved oxygen sensor, a dissolved carbon dioxide sensor, and an ion sensor. The second chamber is equipped with multiple electrochemical biosensors. This enables real-time metabolic detection.

The utility model belongs to the technical field of environment monitoring, and particularly relates to a portable on-line monitoring device for condensable particulate matters of a stationary source. The device comprises a semiconductor refrigeration module, seven peristaltic pumps, a liquid storage tank, a PLC (Programmable Logic Controller), three liquid level sensors, a conductivity sensor, a conductivity detection pool, a pH (Potential of Hydrogen) 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 be used for monitoring the concentration of 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 invention discloses a continuous sampling system for new pollutants in industrial exhaust, and relates to the technical field of pollution sampling, the continuous sampling system for the new pollutants comprises a sampling setting module, a dilution correction module, a mode judgment module and a dynamic adjustment module, a default sampling period is formulated before sampling of an adsorption tube, and flue gas is obtained; the method comprises the following steps: detecting volume flow, setting an initial dilution multiple, collecting temperature and humidity, calculating a thermal decomposition coefficient and correcting the dilution multiple, correcting and diluting flue gas, detecting diluted flue gas by using a built-in optical ion sensor of an adsorption tube, obtaining instantaneous current, analyzing a reaction fluctuation trend, and judging whether a rapid sampling mode is triggered or not. After triggering, the number of transient peak values is counted according to the fluctuation trend, a default sampling period is adjusted accordingly to obtain a rapid sampling period, sampling is conducted according to the period, the historical sampling amount of the adsorption tube is obtained, whether replacement is conducted or not is judged, efficient capture of the transient peak values is achieved, the utilization rate of the adsorption tube is improved while data integrity is guaranteed, and operation and maintenance cost is reduced.

This invention provides a soil carbonate ion sensor based on CuO-Cu2O heterojunction nanowires, its preparation method, and a real-time monitoring device. It is used for in-situ, real-time, and continuous monitoring of free carbonate ions in soil. This invention employs an in-situ oxidation and topological transformation strategy to synthesize CuO-Cu2O nanowire heterojunctions with excellent chemical structural stability, broad-spectrum antibacterial activity, and alkali resistance on a copper foam substrate, serving as the sensor's sensitive material. The prepared CuO-Cu2O material is used as the working electrode and integrated with a counter electrode to construct an electrochemical sensing unit. This unit is further integrated with an ESP32 main control module and Internet of Things (IoT) technology to create a portable device, enabling real-time, continuous monitoring and wireless data transmission of free carbonate ion concentration in soil. The sensor fabricated in this invention exhibits high sensitivity (264.98 μA·mM). −1 cm −2 This invention features a low detection limit (15 ppb), a wide linear detection range (0.01–1600 ppm), rapid response (0.6 seconds), excellent selectivity and long-term stability (30 days), and can operate stably in a wide temperature range (0–40°C) and pH range (7–11) and in complex soil media. The invention has a simple manufacturing process and excellent performance, providing a new strategy for accurate and real-time monitoring of soil salinization, and has broad application prospects in precision agriculture and environmental monitoring.

The invention relates to optochemical ion sensors having an antifouling coating containing zinc ethylene bis(dithiocarbamate) as a biocidal agent in a matrix of a water-insoluble, water-swellable hydrogel that is ion-permeable in the swollen state, and to a method for their production.

The application discloses a kind of based on CIZS quantum dot cotton fabric negative ion sensor and preparation method and application, including the following steps, (1) preparation Cu-In-Zn-S quantum dot;(2) ligand exchange;(3) cotton fabric is desized, cation modification treatment: natural cotton fabric is desized, and the cotton fabric after desizing is cation modification treatment;(4) cotton fabric coupling treatment;(5) quantum dot is adsorbed on the cotton fabric that is coupled by impregnation method with chitosan, and by with quantum dot surface small molecule functional ligand reaction, make quantum dot anchor on the surface of cotton fabric;With 3-mercaptopropionic acid as short chain ligand, make quantum dot can be dispersed in aqueous solution, small molecule functional ligand is with the reactivity of quantum dot and coupling resin to adjust.The natural cotton fabric is selected as carrier, adds PER and chitosan, adds Cu-In-Zn-S quantum dot and makes it evenly distributed on the surface of cotton fiber, successfully realizes the combination of quantum dot and flexible fabric base material.

The present invention provides a charge amount measuring ion sensor and an ion forming apparatus including the same, the charge amount measuring ion sensor including: a sensing portion configured on a migration path of ions generated from an ion source for generating ions other than electrostatic ions, to sense the ions generated from the ion source in real time; a controller for displaying the ions sensed by the sensing portion; a cable for connecting the controller and the sensing portion; and a power portion for delivering a power source to the controller.

The utility model relates to the technical field of water treatment aeration equipment, in particular to a lithium bromide circulating water aeration device, which is provided with a containing device, a conveying device and an aeration device to improve the use efficiency of machines in parallel in groups and improve the expansibility of the machines, and is provided with the containing device and the conveying device to automatically feed and discharge materials to the machines, so that the production efficiency is improved, and the production cost is reduced. Raw materials can be conveniently and continuously treated, and the usability of the machine is improved; comprising a containing device; the system further comprises a conveying device, an aeration device, a control device, a filtration and adsorption device and a plurality of bromide ion sensors, the conveying device, the aeration device, the filtration and adsorption device and the bromide ion sensors are all installed on the containing device, and the control device is installed on the conveying device and the aeration device.

This invention provides a system, method, and computing device for intelligent circulating mineralized water. The system includes: a first drainage path, comprising a first ion sensor and a drainage valve; a water supply path, comprising a mineralized water tank, a first pump, and a first reversing valve, wherein the mineralized water tank is equipped with a level sensor and a second ion sensor; a second drainage path, equipped with a check valve; a circulating mineralized water path, comprising an inlet solenoid valve, a mineralized water tank, a second pump, a second reversing valve, and a mineralization device, wherein the mineralization device is equipped with a third ion sensor; a circulating homogenizing water path, comprising a mineralized water tank, a second pump, and a second reversing valve; and a control module, controlling the start / stop or reversal of the inlet solenoid valve, drainage valve, first pump, second pump, first reversing valve, and second reversing valve. According to the technical solution of this invention, real-time feedback on the mineralization effect can be collected, achieving precise dynamic control of the target mineral concentration level and meeting the needs of intelligent and personalized on-site preparation.

The invention discloses a temperature self-calibration wearable sweat sensor system, a preparation method and equipment, and relates to the technical field of wearable sweat sensors. The system comprises a flexible multifunctional sensing electrode which is used for synchronously monitoring sodium ion concentration, potassium ion concentration and skin temperature in sweat; the micro-fluidic module is integrated with the flexible multifunctional sensing electrode and is used for guiding sweat to flow to the flexible multifunctional sensing electrode along a preset path and isolating direct contact between the flexible multifunctional sensing electrode and the skin; and the signal detector is connected with the flexible multifunctional sensing electrode. The skin temperature sensor is integrated, the skin temperature change can be monitored in real time in different activity states, the output result of the potassium and sodium ion sensor is corrected in real time by introducing a temperature compensation item into the Nernst equation, temperature interference is effectively eliminated, and continuous monitoring of Na and Kelectrolyte in sweat can be achieved.

The invention relates to the technical field of smoke detection early warning devices, in particular to a smoke detection early warning device and a control system thereof.The smoke detection early warning device is characterized in that an optical sensor, an ionic sensor and a gas sensor are installed in an early warning device body, and a wind speed sensor, a green LED, a yellow LED and a red LED are installed outside the early warning device body; the control system specifically comprises a multi-source fusion sensing module, an intelligent signal processing module, a smoke type identification module, a smoke concentration dynamic estimation and environment correction module, a multi-level dynamic early warning decision module, a multi-mode communication and data transmission module, a self-adaptive power supply management module and a multi-dimensional fault diagnosis and self-repairing module. In the control system, the limitation of a single sensor is broken through through optical, ionic and gas three-source cooperation of the multi-source fusion sensing module, and the multi-dimensional characteristics of smoke are comprehensively captured.

The application provides a device for supplementing mineral elements of purified water and a water dispenser. The device is arranged at the end of a purified water supply path. The device comprises a first ion sensor, a flow control valve, a second ion sensor, a three-way joint and a mineralization filter element. The first ion sensor is used for monitoring the ion concentration content in the purified water. The flow control valve is connected with a purified water inlet pipe, and the purified water is branched into a first pipeline and a second pipeline. The mineralization filter element is arranged in the second pipeline, and the purified water is mineralized to obtain primary mineralized water. The second ion sensor is arranged after the mineralization filter element, and is used for monitoring the ion concentration content in the primary mineralized water. The first pipeline and the second pipeline are connected to the three-way joint, so that stable-concentration direct-drinking mineralized water is externally delivered. According to the technical scheme, the water mineral concentration can be accurately controlled, and the service life of the filter element can be prolonged.