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58results about How to "Eliminate impedance" patented technology
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Radio frequency filter using intermediate frequency impedance translation
The present invention is an RF filter that translates impedances of an IF circuit to create a filter with an RF center frequency having the high Q roll-off characteristics of an IF filter. The RF filter is self-aligned with the frequency of an RF local oscillator. The RF filter has an impedance divider, which is formed by coupling an RF impedance circuit to a translated IF impedance circuit. The translated IF impedance circuit includes an RF passive mixer and an IF impedance circuit. The mixer translates the impedance of the IF impedance circuit by mixing an RF input signal with an RF local oscillator signal, which determines the RF center frequency. Filtered RF signals may be provided by the impedance divider. Filtered IF signals may be provided by the IF impedance circuit. To effectively translate and preserve the IF impedance characteristics, the IF impedance circuit presents a high impedance at harmonics of the RF local oscillator signal.
Owner:HUAWEI TECH CO LTD
Antenna matching apparatus
InactiveUS20070010217A1Eliminate impedance mismatchingReduce power lossResonant long antennasAntenna supports/mountingsCapacitanceImpedance matching
An antenna matching apparatus capable of eliminating impedance mismatching produced when the antenna element is placed close to the human body in a short time and reducing power loss due to impedance mismatching. This apparatus connects variable capacitance capacitors VC1 and VC2 for impedance adjustment to transmission antenna element TA1, connects variable capacitance capacitors VC3 and VC4 to reception antenna element RA1 respectively, provides beforehand capacitance values of respective variable capacitance capacitors which are impedance matched in a table in a one-to-one correspondence with the distances between the antenna elements and human body and stores the table in storage section (106). The apparatus completes adaptive control processing for any one of transmission antenna element TA1 and reception antenna element RA1, reads other capacitance values corresponding to the capacitance value at that moment from the table and performs adaptive control processing on other antenna elements using the read values as initial values.
Owner:PANASONIC CORP
Integrated circulators sharing a continuous circuit
ActiveUS20110193649A1Eliminated impedance mismatchLow costPrinted circuit aspectsConductive pattern formationIntegrated circuitGround plane
The present invention is directed to a circuit assembly that includes an integrated circulator assembly. The circuit assembly has a first substrate, which contains a continuous circuit trace that includes a circulator component from the circulator assembly and at least one electrical component from the circuit assembly. A second substrate is disposed beneath the first substrate and includes a cladding on one surface. The second substrate contains an aperture that accepts a ferrite element, which is axially aligned with the circulator component of the circuit trace. A conductive material is placed across the ferrite element so that it forms a continuous ground plane with the cladding, which is common to the entire circuit trace. The circulator assembly also contains a magnet bonded to the ferrite element. The circulator assembly may also include a yoke disposed below the magnet to shield the circulator from external magnetic fields.
Owner:EMS TECHNOLOGIES
Electromagnetic composite metamaterial
InactiveUS20080136563A1Reduce device sizeIncrease rangeImpedence networksClassical mechanicsElectromagnetic shielding
An electromagnetic composite metamaterial including an electromagnetic medium and a plurality of spaced electromechanical resonators disposed in or on the electromagnetic medium configured to control electromagnetic wave propagation properties in the electromagnetic composite metamaterial.
Owner:CHARLES STARK DRAPER LABORATORY
Precision wideband 50 Ohm input and 50 Ohm output or 100 Ohm output differential reflection bridge
InactiveUS7126347B1Elimination of common mode impedance disturbanceEliminate impedanceResistance/reactance/impedenceOhmTransmission line
A differential reflection bridge is provided for a 100 Ohm load, the bridge not being compromised by a translation to a 50 Ohm system. The reflection bridge uses two transmission line baluns. The first traditional balun T1 connects the input signal source to a resistor bridge. The second balun T2 connects between a central node of the resistor bridge and an output OUT as well as a second test port that eliminates a path to ground. With no ground path the bridge is immune to common mode impedance disturbances.
Owner:ANRITSU CORP
Electromagnetic composite metamaterial
InactiveUS7741933B2Reduce device sizeIncrease rangeImpedence networksClassical mechanicsElectromagnetic shielding
Owner:CHARLES STARK DRAPER LABORATORY
Programmable low noise amplifier and method
ActiveUS7151409B2Reduce noiseImprove dynamic rangeAmplifier modifications to reduce noise influenceGain controlAudio power amplifierElectrical conductor
A programmable gain low noise amplifier includes a tail current transistor (Q3) having a source coupled to a first reference voltage (VDD) and a drain coupled to a tail current conductor (18) and, in a differential input embodiment, a plurality of pairs (Q4,5, Q7,8, Q10,11, Q13,14) of differentially coupled input transistors. Each pair includes a first input transistor having a gate coupled to a first input conductor (19A) and a drain coupled to a first output conductor (26A) and a second input transistor having a gate coupled to a second input conductor (19B), a source coupled to a source of the first transistor, and a drain coupled to a second output conductor (26B). The sources of the first and second input transistors of some or all of the pairs are selectively coupled to the tail current conductor (18) in it response to corresponding gain control signals (B1,2,3).
Owner:TEXAS INSTR INC
Power amplifier output matching circuit, radio frequency front-end module and wireless device
ActiveCN111600559AEliminate impedanceRemove loadPush-pull amplifiersPhase-splittersAudio power amplifierRadio frequency front end
The invention discloses a power amplifier output matching circuit, a radio frequency front-end module and a wireless device. The power amplifier output matching circuit is used for being connected with a first power amplifier output and a second power amplifier output of a push-pull power amplifier output stage, and comprises a load balun, a first blocking circuit, a second blocking circuit, a first feed circuit and a second feed circuit; a main coil of the load balun is provided with a first balun input and a second balun input; the first balun input is connected with the first power amplifier output through the first blocking circuit, and the first balun input is connected with the first power amplifier output through the first feed circuit; the second balun input is connected with the second power amplifier output through the second blocking circuit, and the second balun input is connected with the second power amplifier output through the second feed circuit. The circuit can effectively eliminate the influence of parasitic inductance on load line impedance and load line insertion loss, and guarantees the output power and power conversion efficiency of the push-pull power amplifier.
Owner:RADROCK (SHENZHEN) TECH CO LTD
Connector terminal and electric connector
ActiveUS9022811B2Suppress poor connectionEliminate impedanceCoupling contact membersCouplings bases/casesEngineeringElectrical impedance
A socket terminal includes front and rear terminals. The front terminal includes a front contact-point portion that wipes off foreign material adhered to a terminal surface of a plug terminal. The rear terminal includes a rear contact-point portion that contacts the terminal surface wiped by the front contact-point portion. The socket terminal also includes a movable portion between a circuit-board connection portion and circuit board. The movable portion cancels a reduction in impedance of at least the front terminal and rear terminal for a transmission signal flowing from the circuit-board connection portion connected to the circuit board. This can provide a socket terminal allowing the rear contact-point portion to contact the terminal surface from which foreign material has been wiped off, and allowing impedance mismatching at a terminal transmission path to be eliminated; and to provide an electric connector including the socket terminal.
Owner:IRISO ELECTRONICS CO LTD
Multifunctional force cell sensor
InactiveCN103439034AHigh outputImprove output sensitivityForce measurement by measuring magnetic property varationWork measurementPull forceCoupling
The invention discloses a multifunctional force cell sensor. The multifunctional force cell sensor comprises a cross elastic shaft, an output and input collecting ring, magnetic conductive connecting rods, a Fe-based nanometer microcrystalline alloy adhesion layer, excitation coils, measuring coils and an anti-magnetic interference shielding cover, wherein the four arms of the cross elastic shaft have the same length, the two ends in the vertical direction of the cross elastic shaft are provided with pulling force rings for pulling force measuring; the two ends in the horizontal direction of the cross elastic shaft are respectively provided with a shaft coupling for torque measuring and a pressure head for pressure measuring; the Fe-based nanometer microcrystalline alloy adhesion layer is attached to the bearing surface of the cross elastic shaft; the surface of the Fe-based nanometer microcrystalline alloy adhesion layer is wound by the measuring coils; the magnetic conductive connecting rods are connected with the end portions of the cross elastic shaft and thus a rhombus magnetic conductive steel frame is formed; the magnetic conductive connecting rods are wound by the excitation coils; and the whole sensor is arranged inside the anti-magnetic interference shielding cover. The multifunctional force cell sensor can measure not only pulling force and but also pressure and torque, and also has higher precision and sensitivity.
Owner:HUAIHAI INST OF TECH
Connector Terminal and Electric Connector
ActiveUS20150044917A1Improving impedanceImproving Impedance MatchingSecuring/insulating coupling contact membersCoupling contact membersElectricityElectrical impedance
A socket terminal includes front and rear terminals. The front terminal includes a front contact-point portion that wipes off foreign material adhered to a terminal surface of a plug terminal. The rear terminal includes a rear contact-point portion that contacts the terminal surface wiped by the front contact-point portion. The socket terminal also includes a movable portion between a circuit-board connection portion and circuit board. The movable portion cancels a reduction in impedance of at least the front terminal and rear terminal for a transmission signal flowing from the circuit-board connection portion connected to the circuit board. This can provide a socket terminal allowing the rear contact-point portion to contact the terminal surface from which foreign material has been wiped off, and allowing impedance mismatching at a terminal transmission path to be eliminated; and to provide an electric connector including the socket terminal.
Owner:IRISO ELECTRONICS CO LTD
A charging method and a charging device
ActiveCN109065989AFast chargingEliminate impedanceBatteries circuit arrangementsSecondary cells charging/dischargingCharge cycleCharge voltage
The embodiment of the invention discloses a charging method and a charging device, which relate to the technical field of communication, so as to solve the problem of long charging time of a battery.The charging method comprises: after charging the battery according to a first current value, charging the battery according to a second current value, the second current value being smaller than thefirst current value, and N being a positive integer in each of N charging cycles; Charging the battery according to the target cutoff voltage value when the target voltage value is greater than or equal to the target cutoff voltage value at the end of each charging cycle; Wherein the target voltage value is a charging voltage value corresponding to the first current value, and the target cutoff voltage value is a first cutoff voltage value, or the target voltage value is a charging voltage value corresponding to the second current value, and the target cutoff voltage value is a second cutoff voltage value, and the second cutoff voltage value is smaller than the first cutoff voltage value. The method can be applied to the scenario of charging the battery.
Owner:VIVO MOBILE COMM CO LTD
Semiconductor device
ActiveUS20050263881A1Eliminate common impedanceReduce common impedanceGain controlSemiconductor/solid-state device detailsDevice materialSemiconductor chip
A miniaturized semiconductor device has a package substrate, a semiconductor chip mounted on the main surface of the package substrate and having plural LNAs each for amplifying a signal, an RF VCO for converting the frequency of the signal supplied from LNA, and an IF VCO for converting the frequency of a signal supplied from a baseband. A plurality of ball electrodes are provided on the back surface of the package substrate. The package substrate is provided with a first common GND wire for supplying a GND potential to each of the LNAs, with a second common GND wire for supplying the GND potential to the RF VCO, and with a third common GND wire for supplying the GND potential to the IF VCO. The first, second, and third common GND wires are separated from each other.
Owner:RENESAS ELECTRONICS CORP
Active leaked current on-line measurement method for power distribution network
InactiveCN108445336AEliminate impedanceHigh measurement accuracyElectrical testingElectrical resistance and conductanceTransformer
The invention discloses an active leaked current on-line measurement method for a power distribution network, and the method is used for the measurement of the active leaked current of a grounding distribution network where a neutral point is in series connection with a damping resistor through an arc extinguishing coil. The method comprises the steps: injecting a non-power-frequency specific frequency current signal to the distribution network through the zero-sequence voltage transformer of the distribution network; measuring a returned voltage signal in the arc extinguishing coil through avoltage transformer; calculating the ground leakage conductance of the distribution network and the active leaked current of the distribution network. The method achieves the online measurement of theactive leaked current, does not need to change the primary side wiring of the distribution network during measurement, avoids the impact on the normal operation of the distribution network, can eliminate the impact from the internal impedance and damping resistance of the voltage transformer, and is simple, convenient, economical and precise in measurement.
Owner:JINING POWER SUPPLY CO OF STATE GRID SHANDONG ELECTRIC POWER CO +2
Converter control device
ActiveCN107623339AEliminate impedanceHarmonic suppressionPower amplifiersSingle network parallel feeding arrangementsCapacitanceHarmonic
The invention discloses a converter control device. Due to the uncertainty of power grid conditions, the problems of access current harmonic amplification, power fluctuation, converter instability andthe like of a converter caused by impedance mismatching (a weak power grid) can be caused to endanger the safety of the converter and to shorten the life of the converter when the grid-connected converter is accessed under different power grid conditions, so that matching of output impedance of the converter under different power grid conditions and power grid impedance needs to be ensured to reduce the mutual influence of the converter and the power grid. By adopting a strategy of connecting a group of active power conversion devices to a grid-connected filter capacitor branch of the converter in series, the power grid impedance and the grid side harmonic component are eliminated and complete decoupling of the power grid is achieved through combining a common terminal (PCC terminal) grid-voltage unit feedforward control unit with the active devices.
Owner:浙江知多多网络科技有限公司
System and method for selecting a translator to translate a component request using semantic typing
InactiveUS7191431B2Eliminates data impedance mismatchEliminate impedanceNatural language data processingSpecific program execution arrangementsTypingData mining
A system and method for automatically selecting a translator to translate a component request using semantic typing is presented. A mediator receives a component request from a first component that requests to invoke a second component. The mediator retrieves a launch target identifier and a requester provided property type identifier from the component request. The requester provided property type identifier includes semantic typing corresponding to a data value. The mediator retrieves a recipient input property type identifier corresponding to the launch target identifier, and uses the requester provided property type identifier and the recipient input property type identifier to select a translator. The mediator passes a data value included in the component request to the selected translator, and receives a translated data value from the translator. The mediator constructs a property using the translated data value and includes the constructed property in a call that is sent to the second component.
Owner:IBM CORP
Integrated circulators sharing a continuous circuit
ActiveUS8514031B2Eliminate impedanceLow costPrinted circuit aspectsConductive pattern formationElectricityGround plane
The present invention is directed to a circuit assembly that includes an integrated circulator assembly. The circuit assembly has a first substrate, which contains a continuous circuit trace that includes a circulator component from the circulator assembly and at least one electrical component from the circuit assembly. A second substrate is disposed beneath the first substrate and includes a cladding on one surface. The second substrate contains an aperture that accepts a ferrite element, which is axially aligned with the circulator component of the circuit trace. A conductive material is placed across the ferrite element so that it forms a continuous ground plane with the cladding, which is common to the entire circuit trace. The circulator assembly also contains a magnet bonded to the ferrite element. The circulator assembly may also include a yoke disposed below the magnet to shield the circulator from external magnetic fields.
Owner:EMS TECHNOLOGIES
Resonance grounding power distribution network ground parameter measurement method considering damping resistance
ActiveCN111103500AEliminates the effect of damping resistorsHigh precisionFault location by conductor typesShort-circuit testingCapacitanceTransformer
The invention provides a resonance grounding power distribution network ground parameter measurement method considering damping resistance, and the method is suitable for a neutral point arc suppression coil cascading damping resistor grounding power distribution network. The method comprises: injecting a non-power-frequency characteristic frequency constant-current signal into a power distribution network through a voltage transformer in an arc suppression coil; measuring the returned characteristic frequency voltage signal from the neutral point zero-sequence voltage transformer of the powerdistribution network, changing the frequency of the current signal, searching the resonance angular frequency of the zero-sequence equivalent circuit of the power distribution network, and calculating the ground capacitance and the ground leakage conductance of the power distribution network. The influence of impedance and damping resistance in the voltage transformer can be eliminated, high-precision measurement of ground parameters of the resonance grounding power distribution network is achieved, accurate tuning of the arc suppression coil is facilitated, measurement is safe and rapid, andnormal operation of the power distribution network is not affected.
Owner:CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY
Contactless card and a control method thereof
ActiveUS20080283617A1Improve usabilityImprove continuitySensing record carriersRecord carriers used with machinesPresent methodUsability
The present invention relates to a contactless card in smart card field and a control method thereof. The contactless card comprises a card chip, an antenna resonant circuit, and a confirmation unit. The confirmation unit, being separated from the antenna resonant circuit and connected to the I / O interface of the card chip, is used for confirming a card operation command by a cardholder so as to send a confirmation message to the card chip. The control method can be realized according to the following steps: putting a contactless card into a valid range for its reader; determining by the contactless card whether a command transmitted from the reader needs to be confirmed by the cardholder, if not, responding to the command by the contactless card, otherwise waiting for confirmation message by the contactless card; and receiving the confirmation message from the cardholder and responding to the command by the contactless card. The present method provides the cardholder with the light on the control of command execution and prevents the information stored in the card from being stolen or mis-operation to the card, which improves the usability of the contactless card and eliminates the impedance and enhances the continuity of the antenna resonant circuit and brings the convenience to the cardholder.
Owner:FEITIAN TECHNOLOGIES
Apertured chip resistor and method for fabricating same
InactiveUS20090002124A1Drawback can be obviatedIncreasing fabrication process yieldResistor chip manufactureResistor detailsElectrical resistance and conductanceState of art
An apertured fixed chip resistor and method for fabricating the same are disclosed according to the present invention, wherein a bonding layer is applied to accordingly bond together a substrate and a metallic sheet structure that has central aperture, and then a passivation layer is applied to partially cover the exposed surface of the metallic sheet structure and to divide the surface of the metallic sheet structure into a central covered region separating two uncovered regions, wherein the uncovered regions are provided to serve as electrode zones, thereby eliminating unnecessary current transmission impedance as in prior art as well as efficiently and stably reducing the temperature coefficient of resistance. The bonding design of the substrate and the metallic sheet structure of the present invention is capable of overcoming the drawback of the high cost of semiconductor processing as applied in prior art, and it provides a simple fabrication process that is capable of increasing process yield and decreasing total production costs.
Owner:FEEL CHERNG ENTERPRISE
Frequency varying driven washer
InactiveCN1184735CEliminate short circuitEliminate impedanceDC motor speed/torque controlAc-ac conversionPhase differencePower grid
The present invention relates to a frequency-variable driven washing machine, which is characterized by that in said washing machine the electric network power supply is converted into variable frequency and two-phase power source whose time lag is equal to 1 / 4 cycle to drive two-phase symmetrical winding motor of space phase difference Pi / 2 electric angle. Its one technical scheme is as follows: electric network power source is converted into variable frequency power source by means of rectifying-filtering circuit and inversion circuit, its rectifying-filtering circuit is formed from positive half-wave rectification filtering circuit and negative half-wave rectification filtering circuit and has a common end with power supply circuit of electric network, and its inversion icrcuit is double half wave 4 unit, and its uses existent washing machine motor. It possesses the excellent performance of symmetrical motor, and its structure is simplified and cost is reduced.
Owner:JINLING ELECTRICAL CO LTD
Transcranial current loop stimulation device
PendingUS20200030617A1Improve physical conditionStimulating hormone productionElectroencephalographyHead electrodesElectro stimulationPhysical therapy
A device is described, which provides electrical stimulation to the brain of a person, where the device comprises one or more modules, each module comprising an implantable pulse generator (IPG) and a lead with at least one subcranial electrode, which extends into or near the surface of the brain. Each module's IPG comprises a battery and a subcutaneous electrode. Each module is inserted into a burr hole, and a seal fills the space to minimize electric current flow between the subcutaneous electrode and subcranial electrode.
Owner:EPIC NEURO INC
Multi-feed antenna optimized for non-50 Ohm operation
ActiveUS9819077B1Impedance transforming can be eliminatedConfigure operationMultiple-port networksSimultaneous aerial operationsAntenna impedanceImpedance matching
A multi-feed antenna is described where the antenna is optimized for the natural impedance state per frequency band. Multiple feed points are accessed as a function of frequency and use case to provide a feed port that is operating at the natural impedance state for the antenna structure. Impedance transforming circuits can be applied to the feed point to form impedance matching circuits to transform the antenna impedance to a characteristic impedance of the system or circuit interfacing with the antenna. The impedance transforming circuits can be eliminated and the RF circuitry interfacing with the antenna can be configured to operate at the natural frequency of the antenna.
Owner:KYOCERA AVX COMPONENTS (SAN DIEGO) INC
Method and system for measuring ground insulation parameters of neutral point ungrounded power distribution network by adopting star-shaped capacitor
ActiveCN110927517AEliminate the effects ofDoes not affect normal operationTesting dielectric strengthFault location by conductor typesCapacitanceElectrical resistance and conductance
The invention discloses a method and system for measuring ground insulation parameters of a neutral point ungrounded power distribution network by adopting a star-shaped capacitor. The method comprises the following steps: injecting a specific frequency current signal into a neutral point of the star-shaped capacitor of a neutral point ungrounded power distribution network; measuring the returnedfrequency voltage signal by a no-load zero-sequence voltage transformer on the open triangle side; and calculating ground insulation parameters, namely ground capacitance and ground leakage conductance, of the neutral point ungrounded power distribution network according to the voltage signal and the current signal. According to the invention, online measurement of ground insulation parameters canbe realized, primary side wiring of the power distribution network does not need to be changed during measurement, normal operation of the power distribution network is not influenced, the influenceof impedance in the voltage transformer and harmonic elimination resistance of the power distribution network can be eliminated, and the method has the characteristics of safe, simple and convenient measurement, economy and high precision.
Owner:CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY
Semiconductor device including amplifier and frequency converter
ActiveUS7608922B2Improve featuresEliminate impedanceGain controlSemiconductor/solid-state device detailsFrequency changerAudio power amplifier
A miniaturized semiconductor device has a package substrate, a semiconductor chip mounted on the main surface of the package substrate and having plural LNAs each for amplifying a signal, an RF VCO for converting the frequency of the signal supplied from each LNA, and an IF VCO for converting the frequency of a signal supplied from a baseband. A plurality of ball electrodes are provided on the back surface of the package substrate. The package substrate is provided with a first common GND wire for supplying a GND potential to each of the LNAs, with a second common GND wire for supplying the GND potential to the RF VCO, and with a third common GND wire for supplying the GND potential to the IF VCO. The first, second, and third common GND wires are separated from each other.
Owner:RENESAS ELECTRONICS CORP
Adjustable impedance high speed data connector, and methods of assembling and operating thereof
ActiveUS10418767B2Different bandwidthEliminate impedanceContact member assembly/disassemblyFinal product manufactureCapacitanceData connection
An adjustable impedance high speed data connector, and methods for assembling and operating thereof. The adjustable impedance high speed data connector of this invention includes a printed circuit board accommodated within, or printed or stamped onto, a tray, the printed circuit board including sets of terminals respectively extending on opposite ends of the printed circuit board. Mounted onto the printed circuit board and electrically connected thereto is at least one electric module having a fixed or adjustable capacitance or a fixed or adjustable inductance, which may be combined in any desired combination to achieve a desired impedance for the connector. By adjusting the variable capacitance or inductance of the electric module (or the variable combinations of capacitance and / or inductance of a plurality of electric modules), the impedance within the connector is adjustable for allowing the connector to operate at various ranges of bandwidths.
Owner:J S T CORP
Circuit for reducing the wiring needed to control the functions of a vehicle
InactiveUS7509176B2Interference minimizationNoise minimizationDc network circuit arrangementsElectric devicesAssociated functionControl circuit
Owner:CHEN JACK
Improved method and syste mfor magnetic head to unload
InactiveCN1492396AEliminate impedanceSmall currentDisposition/mounting of recording headsRecord information storageElectricityElectrical resistance and conductance
The present invention provides improved method and system for magnetic heat to unload. While unloading magnetic head and in case of some power fault, the present invention can limit the maximum and minimum rate of the actuator. One counter electromotive force control circuit is used to compare the standard actuator rate and current actuator rate and has one inducing resistor to eliminate impedance of the actuator. In case of rate exceeding safety range, the counter electromotive force control circuit will reduce the current through the actuator to avoid ever greater acceleration, and vice versa.
Owner:YITUO SCI & TECH CO LTD SHENZHEN
Contactless card and a control method thereof
ActiveUS7624927B2Improve usabilityImprove continuitySensing record carriersRecord carriers used with machinesPresent methodUsability
Owner:FEITIAN TECHNOLOGIES
Detachable three-electrode battery testing device and assembling method thereof
PendingCN113391224AEliminate impedanceGuaranteed stabilityResistance/reactance/impedenceElectrical testingElectrical batteryStructural engineering
The invention discloses a detachable three-electrode battery testing device and an assembling method thereof. The device comprises a shell, a lead screw, an extrusion assembly and a reference electrode assembly, wherein the shell comprises a base, a first sealing ring and an upper cover; a positioning groove is formed in the cavity bottom of the base; the upper cover is detachably connected to the top end of the base; the first sealing ring is arranged between the upper cover and the base; the lead screw penetrates through the upper cover and the first sealing ring to be in threaded connection with the base. The device can test and research the impedance and the change condition of the electrode plate, can research and analyze the dynamic mechanism in the chemical process of the electrode, can judge and analyze the battery capacity recession reason, is high in sealing performance, avoids air leakage and liquid leakage, can realize thousands of cycles of a power or energy storage battery, improves labor efficiency, the device is simple in structure, reasonable in arrangement, low in cost and high in practicability, and the assembling method is safe, few in step and easy to operate.
Owner:苏州华赢新能源材料科技有限公司
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