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45results about How to "Wide resistance range" patented technology
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Data reading method and device for resistance sensor array
ActiveCN105675024AEliminate distractionsEliminate errorsConverting sensor output electrically/magneticallySensor arrayElectrical resistance and conductance
The invention discloses a data reading method for a resistance sensor array and belongs to the technical field of sensors. The method comprises following steps: S1. adding a line of n standard resistances with known resistance values into a M*N resistance sensor array sharing a line and alignment in advance to obtain a (M+1)*(N) resistance array sharing line and alignment; S2. by use of a multiplexer, grounding the kth line of the M*N resistance sensor array successively, connecting the other lines of the M*N resistance sensor array and the standard resistance line with an excitation voltage VI, and measuring the measuring voltage of the standard resistance line, and voltages of each line and each row; S3. according to the voltage data of each line and each row, calculating the resistance values of M*N resistance sensors in the resistance array. The invention also discloses a data reading device of a resistance sensor array and a sensor system. By use of the method and device, rapid detection of the resistance sensor array is realized and measurement precision and range are increased.
Owner:SOUTHEAST UNIV
Novel porous silicon and a preparation method thereof
InactiveCN102400217ADoes not affect productionEasy to integratePolycrystalline material growthAfter-treatment detailsMicro nanoHydrofluoric acid
The invention discloses novel porous silicon and a preparation method thereof. The porous silicon has a structure that cylindrical nanometer porous silicon is formed in a low-doped and N-shape monocrystalline silicon film base, and closes straight hole cavities, and the surface is nanometer porous silicon. The invention employs an electrochemical corrosion method, where the structure of the novel porous silicon is made by controlling the mixture solution proportioning and the voltage and current of a dc source in a mixture solution of hydrofluoric acid and an organic solvent. The novel porous silicon structure and the preparation method provide a new technological approach and method for the integration of a silicon-based micro nano device with a sensor, a self-destructing chip, a luminescent device, etc.
Owner:SICHUAN UNIV
Resistor composition and thick film resistor
InactiveUS7476342B2Improve featuresWide resistance rangeCurrent responsive resistorsConductive materialCurrent noiseRuthenium
Owner:SHOEI CHEM IND CO LTD
Carbon rubber embedded resistance paste and preparation method of carbon rubber embedded resistance material
InactiveCN103295707AImprove performanceWide resistance rangeResistor manufactureNon-adjustable resistorsPolymer scienceMethyl benzene
The invention discloses a carbon rubber embedded resistance paste and a preparation method of a carbon rubber embedded resistance material. The carbon rubber embedded resistance paste comprises adhesive resin, a conductive filler, a curing agent, an accelerator, a coupling agent and a stability accelerant. Specifically, the adhesive resin is o-methyl phenolic epoxy resin; the conductive filler is a mixture of graphite and carbon black; the stability accelerant is a mixture of benzotriazole (BTA) and tolytriazole (TTA). The method is the preparation method of the paste. Compared with the prior art, the carbon rubber resistance material obtained according to the formula has the advantages of wide resistance range, high precision, good environmental stability, heat resistance and storage stability, and excellent mechanical properties, and can well meet the material characteristic requirements for embedding resistance in a circuit board.
Owner:GUANGDONG DANBOND TECH
High-performance carbon film resistor, and preparation method thereof
InactiveCN105355351AImprove performanceSmall negative temperature coefficientAdjustable resistorsCarbon filmSlurry
The invention relates to a high-performance carbon film resistor, and a preparation method thereof, and belongs to the technical field of thin film resistor. A carbon film slurry comprises, by weight, 15 to 25 parts of graphite, 8 to 16 parts of carbon black, 1 to 3 parts of phenolic resin, 2 to 5 parts of silicon dioxide, 1 to 3 parts of a binder, 2 to 3 parts of silver oxide, 3 to 5 parts of copper oxide, and 30 to 40 parts of propyl alcohol. The preparation method comprises following steps: graphite and carbon black are mixed, an obtained mixture is subjected to ball milling for 30 to 40min, and is subjected to sintering for 20 to 28min under nitrogen protection at 170 to 180 DEG C; the other raw materials are added, an obtained mixed product is subjected to ultrasonic treatment for 30 to 45min, and is delivered through a filter membrane with filtration pore diameter of 130 to 160<mu>m so as to obtain the carbon film slurry; a ceramic substrate is coated with the carbon film slurry via magnetron sputtering so as to obtain finished products, wherein acceleration voltage is controlled to be 300 to 340V, magnetic field intensity is controlled to be 200 to 300G, electric current density is controlled to be 50 to 60mA / cm, power density is controlled to be 30 to 40W / cm, film thickness is controlled to be 0.2 to 0.8<mu>m. The high-performance carbon film resistor possesses excellent performance, low negative temperature coefficient, and excellent high frequency characteristics; influences caused by voltage and frequency are low; noise electrodynamic potential is low; pulse load is stable; resistance range is wide; and production cost is low.
Owner:陈桂兴
Resistive sensor array test circuit based on two-wire system voltage feedback
ActiveCN105606133AEliminate crosstalk errorsEliminate distractionsConverting sensor output electrically/magneticallyResistive sensorsSensor array
The invention discloses a resistive sensor array test circuit based on two-wire system voltage feedback, and belongs to the technical field of a sensor. The circuit is applied to an M*N two-dimensional resistive sensor array sharing row wires and column wires. The test circuit comprises a voltage feedback operation amplifier, a row multipath selector, a column multipath selector, a sampling resistor, a reference voltage source, N column wire driving operation amplifiers in one-to-one correspondence with N column wires of the resistive sensor array, and two connecting wires respectively arranged for each row wire and each column wire of the resistive sensor array. The invention also discloses a test method of the test circuit, and a sensing system. Compared to the prior art, a two-wire system voltage feedback method is taken as a key technology, measurement errors caused by connection with a cable lead wire resistor, a cable joint contact resistor and a multipath switch channel conduction resistor can be effectively eliminated, and the measurement precision of the resistive sensor array is substantially improved.
Owner:SOUTHEAST UNIV
Resistor composition and thick film resistor
InactiveUS20070075301A1Improve featuresWide resistance rangeConductive materialOxide conductorsCurrent noiseElectrical resistance and conductance
A resistor composition comprising: a lead-free ruthenium-based electrically conductive component, a lead-free glass having a glass basicity (Po value) of 0.4 to 0.9, and an organic vehicle; wherein, MSi2Al2O8 crystals (M: Ba and / or Sr) are present in a thick film resistor obtained by firing this composition. The ruthenium-based resistor composition is capable of forming a lead-free thick film resistor which eliminates harmful lead components from an electrically conductive component and glass, and has superior TCR characteristics, current noise characteristics, withstand voltage characteristics and stability after a heat cycling test over a wide resistance range.
Owner:SHOEI CHEM IND CO LTD
Test circuit for resistive sensor array based on two-wire system isopotential method
ActiveCN105716633AEliminate crosstalk errorsEliminate distractionsConverting sensor output electrically/magneticallySensor arrayObservational error
The invention discloses a test circuit for a resistive sensor array based on a two-wire system isopotential method, and belongs to the technical field of sensors. The test circuit aims at the M*N 2D resistive sensor array in which row and column lines are shared; and the test circuit comprises a current feedback operation amplifier, N column line driving operation amplifiers, an equal current M-to-1 multipath switch, an isopotential M-to-1 multipath switch, N column line 2-to-1 multipath switch, a test current setting resistor, a reference voltage source and two connecting wires, and the connecting wires is used for the row lines and the column lines of the resistive sensor array. The invention also discloses a test method of the test circuit and a sensing system. Compared with the prior art, the test circuit uses the two-wire system isopotential method as key technology, measuring errors caused by lead resistance of connecting cables, contact resistance of cable joints and conduction resistance of multipath switch channels can be eliminated effectively, and the measuring precision of the resistive sensor array is greatly improved.
Owner:SOUTHEAST UNIV
Resistance paste with low temperature coefficient
ActiveCN113793715AWide resistance rangeSmall difference between positive and negative temperature coefficientOxide conductorsNon-conductive material with dispersed conductive materialPhysical chemistryMuffle furnace
The invention discloses a resistance paste with low temperature coefficient, and 100% of the resistance paste is prepared from the following components in percentage by mass: 20 -35 percent of conductive powder, 25-45 percent of glass binding phase, 1-5 percent of additive and 30-45 percent of organic carrier, wherein the conductive powder is at least one of ruthenium dioxide and lead ruthenate, and the glass binding phase is celsian composite lead borosilicate glass which is prepared by carrying out heat preservation on lead borosilicate glass powder and celsian in a muffle furnace at 450-500 DEG C for 24 hours and then carrying out ball milling until the particle size is 0.7-1.3 microns. The lead borosilicate glass powder is modified by using celsian, and the temperature coefficient property of a resistor is adjusted, so that the resistance paste has the advantages of small positive and negative temperature coefficient difference, and the use requirement of a high-precision resistor product can be met.
Owner:西安宏星电子浆料科技股份有限公司
Rapid readout circuit for resistance sensor array based on two-wire system isopotential method
ActiveCN105651315AHigh measurement accuracyWide resistance rangeConverting sensor output electrically/magneticallyMultiway switchingSensor array
The invention discloses a rapid readout circuit for a resistance sensor array based on a two-wire system isopotential method, belonging to the technical field of sensors. Aiming at an M*N two-dimensional resistance sensor array with common row lines and column lines, the rapid readout circuit comprises a column line driving operational amplifier, a column multiplexer, a reference voltage source, M equivalent current operational amplifiers, M test current sampling resistors and two connecting lines, wherein the M equivalent current operational amplifiers are in one-to-one correspondence with M row lines of the resistance sensor array, and the two connecting lines are respectively arranged corresponding to each row line and column line of the resistance sensor array. The invention further discloses a readout method of the rapid readout circuit and a sensing system. Compared with the prior art, the rapid readout circuit has the advantages that by utilizing the two-wire system isopotential method as a key technique, measuring errors caused by the lead resistance and joint contact resistance of connecting cables and the on resistance of multi-path switch channels can be effectively eliminated, and the measurement precision of the resistance sensor array can be substantially improved.
Owner:SOUTHEAST UNIV
Preparation method of thick-film hybrid circuit substrate side resistors
InactiveCN112309660AImprove integration densityImprove integration utilizationPrinted resistor incorporationResistor manufactureScreen printingHemt circuits
The invention discloses a preparation method of thick-film hybrid circuit substrate side resistors, which comprises the following steps that layout is conducted: three kinds of side resistor are laid,the first side resistor is only positioned on the side surface of a substrate, and the second side resistor simultaneously spans over the side surface of the substrate and any one of the upper surface and the lower surface of the substrate, and the third side resistor simultaneously spans the side surface of the substrate and the upper and lower surfaces of the substrate; a negative film is drawnby light, a plate is made, the substrate is cut and cleaned, and a resistor is printed on the side surface of the substrate by a silk-screen printing process; silk-screen printing of glass glaze on the surface of the printed resistor is conducted; laser resistance trimming is conducted; epoxy insulation treatment is conducted on the back surface of the substrate to obtain the side resistor of thethick-film hybrid circuit substrate. Through the method, the resistor can be manufactured on the side surface of the substrate, the space of the ceramic substrate of the hybrid integrated circuit canbe effectively utilized, the space utilization rate is improved, the integration density is improved, and flexibility is brought to layout design.
Owner:EAST CHINA INST OF OPTOELECTRONICS INTEGRATEDDEVICE
Heating and atomizing structure of miniature semiconductor heating atomizer and manufacturing method thereof
The invention discloses a heating and atomizing structure of a miniature semiconductor heating atomizer and a manufacturing method thereof. The heating and atomizing structure comprises a substrate, a semiconductor electro-thermal film, an electrode I and an electrode II; a prepared semiconductor electro-thermal film treatment liquid is plated on a substrate in a high-temperature environment to form a semiconductor electro-thermal film, and then conductive silver paste is printed on the surface of the electro-thermal film to form an electrode through screen-printing; compared with the prior art, the heating and atomizing structure has the beneficial effects that the micro semiconductor heating atomizer is formed by one-time coating in an integral planar coating manner and can be industrially produced on a large scale, and a complicated process of winding, pressing and sintering a superfine resistance wire on a ceramic substrate is not needed; the electro-thermal film is wide in resistance range, can be applied to any voltage in a bearing range, can be made into any required power, is suitable for various occasions, and is free of open fire during heating, low in danger, long in service life and free of heavy metal harm; and the material is not easy to oxidize, has good temperature shock resistance and insulating property, and is safer and more reliable to use.
Owner:福建晶烯新材料科技有限公司
Resistive sensor array test circuit based on two-wire equal-potential method
InactiveCN110631610AEliminate crosstalk errorsEliminate distractionsConverting sensor output electrically/magneticallySensor arrayResistive sensors
The invention discloses a resistive sensor array test circuit based on a two-wire equal-potential method, and belongs to the technical field of sensors. The test circuit is directed to an M*N two-dimensional resistive sensor array that shares row and column lines, and comprises a current feedback operational amplifier, N column line drive operational amplifiers, an equal current one-in-M multi-wayswitch, an equal potential one-in-M multi-way switch, N column line one-in-two multi-way switches, a test current setting resistor, a reference voltage source, and two connection lines set for each row and column lines of the resistive sensor array. The invention also discloses a test method of the test circuit and a sensing system. Compared with the prior art, the invention, by adopting the two-wire equal-potential method as the key technology, can effectively eliminate measurement errors caused by connecting the cable lead resistor, the cable connector contact resistor and the multi-way switch channel on-resistor, and greatly improve the measurement accuracy of the resistive sensor array.
Owner:久耀电子科技(江苏)有限公司
Resistive Sensor Array Fast Readout Circuit, Readout Method, and Sensing System
ActiveCN105628061BEliminate crosstalk errorsEliminate distractionsConverting sensor output electrically/magneticallyResistive sensorsSensor array
Owner:SOUTHEAST UNIV
Resistive sensor array read-out circuit based on two-wire system equipotential method
ActiveCN105606132AEliminate crosstalk errorsEliminate distractionsConverting sensor output electrically/magneticallyResistive sensorsSensor array
The invention discloses a resistive sensor array read-out circuit based on a two-wire system equipotential method, and belongs to the technical field of a sensor. The read-out circuit is applied to an M*N two-dimensional resistive sensor array sharing row wires and column wires and comprises an equivalent current driving operation amplifier, a column wire driving operation amplifier, a row multipath selector, a column multipath selector, a test current sampling resistor, a reference voltage source, and two connecting wires respectively arranged for each row wire and each column wire of the resistive sensor array. The invention further discloses a read-out method of the read-out circuit, and a sensing system. Compared to the prior art, a two-wire system equipotential method is taken as a key technology, measurement errors caused by connection with a cable lead wire resistor, a cable joint contact resistor and a multipath switch channel conduction resistor can be effectively eliminated, and the measurement precision of the resistive sensor array is substantially improved.
Owner:SOUTHEAST UNIV
Composite resistor for head cover of power battery
ActiveCN106128667AImprove securityEnsure safetyCells structural combinationCell lids/coversElectrical resistance and conductancePower battery
The invention belongs to the technical field of power batteries, and particularly relates to a composite resistor for a head cover of a power battery. The composite resistor comprises a conductive component A and an insulating plastic component B, wherein the resistance value of the composite resistor is 0.01-100,000ohm; and the heat-resistance temperature is greater than or equal to 150 DEG C. Compared with the prior art, the composite resistor formed by the conductive component A and the insulating plastic component B has the advantages that: on one hand, the heat-resistance temperature is high and the resistance value range is wide, so that the power battery still has good safety performance under the abuse conditions of box heating, nailing, overcharging and the like; and on the other hand, the composite resistor provided by the invention has extremely high plasticity and bending resistance in comparison with the resistor manufactured by ceramic materials of silicon carbide and the like, which are poor in consistency, high in cost, easy to break during assembly and the like, so that the composite resistor can be ground into a very thin sheet; and the height and the weight of a post terminal are reduced. Therefore, by the composite resistor, the safety performance of the power battery can be ensured and the volume energy density and the mass energy density of the battery can also be improved.
Owner:东莞永蓝电子科技有限公司
Low voltage arm shield integrated resistor for high voltage pulse voltage divider
InactiveCN103762048AEasy to useEasy maintenanceResistor terminals/electrodesResistor electrostatic/electromagnetic shieldingElectrical conductorLow voltage
The invention discloses a low voltage arm shield integrated resistor for a high voltage pulse voltage divider. The low voltage arm shield integrated resistor is characterized in that an upper end cap and a lower end cap are respectively embedded in a resistor body, a middle conductor conducted with the lower end cap penetrates through the inner hole of the resistor body and the inner hole of the upper end cap so as to be connected and conducted with a leading-out terminal, a ground terminal, a shielding case and the upper end cap are fixed, connected and conducted by fixed screws, an inner sealing gasket and an outer sealing gasket are respectively arranged on the upper surface and the lower surface of a panel, a leading-in conductor penetrates through the panel and the lower end cap and is connected and conducted by screw threads, and the shielding case and the panel are fixed and fastened by a bolt. The low voltage arm shield integrated resistor has wide value of resistance, strong overload capacity, large impulse power, large impulse current, fast impulse response, and high work efficiency, has small attenuation for high-frequency impulse signal, low signal distortion factor, and strong antijamming capability, can be used in resistance-type high voltage pulse voltage divider on ultrahigh frequency pulse high voltage equipment and also can be used as an independent loading or current-limiting resistor in ultrahigh frequency pulse high voltage equipment; and as the input interface and the output interface are standard interfaces, the low voltage arm shield integrated resistor is convenient to use and maintain.
Owner:陕西华星电阻器有限公司
Fast readout circuit of resistive sensor array based on two-wire system isopotential method
InactiveCN110631609AEliminate crosstalk errorsEliminate distractionsConverting sensor output electrically/magneticallyObservational errorResistive sensors
The invention discloses a fast readout circuit of a resistive sensor array based on a two-wire system isopotential method, and belongs to the technical field of sensors. For an M*N two-dimensional resistive sensor array that shares row and column lines, the fast readout circuit comprises a column line driving operational amplifier, a column multiplexer, a reference voltage source, M equivalent-current operational amplifiers and M test current sampling resistors which one-to-one correspond to M row lines of the resistive sensor array, and two connection lines respectively provided for each rowline and column line of the resistive sensor array. The invention further discloses a readout method of the above fast readout circuit and a sensing system. Compared with the prior art, in the fast readout circuit of the resistive sensor array based on the two-wire system isopotential method disclosed by the invention, the two-wire system isopotential method is adopted as a key technology, measurement errors generated by a connection cable lead resistance, a cable connector contact resistance and a multiple-switch channel on-resistance can be effectively eliminated, and the measurement accuracy of the resistive sensor array is greatly improved.
Owner:久耀电子科技(江苏)有限公司
High-wear-resistance type resistance paste
ActiveCN114121336ASmall resistance change rateSimple preparation processNon-conductive material with dispersed conductive materialAdjustable resistorsWear resistanceBorosilicate glass
The invention discloses high-wear-resistance type resistance paste which comprises the following components in percentage by mass: 15%-35% of conductive powder, 25%-45% of a glass binding phase, 1%-8% of an additive and 30%-45% of an organic carrier, the conductive powder is graphite composite ruthenium dioxide, and the glass binding phase is lead borosilicate glass powder with the softening temperature of 500-600 DEG C. The resistance paste has the characteristics of stable resistance value, good temperature coefficient and good wear resistance, and can meet the use requirements of glass glaze trimmer potentiometer products.
Owner:西安宏星电子浆料科技股份有限公司
Programmable control precision resistor box
InactiveCN104810122ASimple compositionReduce manufacturing costAdjustable resistorsElectrical resistance and conductanceAudio power amplifier
The invention relates to a programmable control precision resistor box which comprises a controller, a DA (digital to analog) converter, a current sampling circuit and an operational amplifier, wherein an output end of the controller is connected with a digital input port (Di end) of the DA converter; an output end of the current sampling circuit is connected with a Vref end of the DA converter; a voltage output end (Vout end) of the DA converter is connected with a '+' end of the operational amplifier; an output end of the operational amplifier is connected with a '-' end; a load is connected between the output end of the operational amplifier and the output end of the current sampling circuit. According to the programmable control precision resistor box, the circuit is simple, multiple mechanical switches and precision resistors are not required, and the production cost is very low; only one high-precision current sampling resistor is required to simulate one resistor through controlling of the DA converter, and the resistor has a wide range and high precision; if a multiplication type DA converter is adopted, the DA converter can be used for AC / DC (alternating current / direct current) occasions; with the adoption of the programmable control method, the resistor box is conveniently connected with a computer to form an automatic testing system.
Owner:CHANGZHOU COLLEGE OF INFORMATION TECH
Resistor element
ActiveUS20190348200A1High density mountingSuppress generationElongated resistive elementResistor terminals/electrodesElectrical resistance and conductanceHigh density
An object of the present invention to provide a resistor element which can be mounted at a higher density and can cope with a wide range of resistance values, the present invention provides a resistor element including a resistor which mainly contains metal fibers, electrodes which are formed at an end portion of the resistor, and an insulating layer which is in contact with the resistor and the electrodes.
Owner:TOMOEGAWA CO LTD
Carbon glue embedded resistance paste and preparation method of carbon glue embedded resistance material
InactiveCN103295707BImprove performanceWide resistance rangeResistor manufactureNon-adjustable resistorsEpoxyHeat resistance
Owner:GUANGDONG DANBOND TECH
A data readout method and device for a resistive sensor array
ActiveCN105675024BEliminate distractionsEliminate errorsConverting sensor output electrically/magneticallyElectrical resistance and conductanceResistive sensors
The invention discloses a data reading method for a resistance sensor array and belongs to the technical field of sensors. The method comprises following steps: S1. adding a line of n standard resistances with known resistance values into a M*N resistance sensor array sharing a line and alignment in advance to obtain a (M+1)*(N) resistance array sharing line and alignment; S2. by use of a multiplexer, grounding the kth line of the M*N resistance sensor array successively, connecting the other lines of the M*N resistance sensor array and the standard resistance line with an excitation voltage VI, and measuring the measuring voltage of the standard resistance line, and voltages of each line and each row; S3. according to the voltage data of each line and each row, calculating the resistance values of M*N resistance sensors in the resistance array. The invention also discloses a data reading device of a resistance sensor array and a sensor system. By use of the method and device, rapid detection of the resistance sensor array is realized and measurement precision and range are increased.
Owner:SOUTHEAST UNIV
A low temperature coefficient resistance paste
ActiveCN113793715BWide resistance rangeSmall difference between positive and negative temperature coefficientOxide conductorsNon-conductive material with dispersed conductive materialPhysical chemistryMuffle furnace
The invention discloses a low-temperature-coefficient resistance paste, which is composed of 20%-35% conductive powder, 25%-45% glass binder phase, 1%-5% Additives, 30% to 45% organic carrier; the conductive powder is at least one of ruthenium dioxide and lead ruthenate, and the glass bonding phase is lead borosilicate glass powder and barium feldspar in a muffle furnace Barium feldspar composite lead-borosilicate glass with a particle size of 0.7-1.3 μm after being kept at 450-500°C for 24 hours. The invention uses barite to modify the lead-borosilicate glass powder, and adjusts the temperature coefficient characteristics of the resistance, so that the resistance paste has the characteristics of small difference between positive and negative temperature coefficients, and can meet the requirements of high-precision resistance products.
Owner:西安宏星电子浆料科技股份有限公司
High-voltage pulse voltage divider Low-voltage arm shielded integrated resistor
InactiveCN103762048BEasy to useEasy maintenanceResistor terminals/electrodesResistor electrostatic/electromagnetic shieldingElectrical conductorLow voltage
Owner:陕西华星电阻器有限公司
Thin-film components for integrated circuits
PendingUS20220293797A1Wide resistance rangeEasy to controlTransistorResistor terminals/electrodesThin membraneElectronic component
A thin-film electronic component includes a first terminal, a second terminal, and a first current path between the first terminal and the second terminal, wherein the first current path is formed from a first segment of a first material and a first segment of a second material arranged in series between the first terminal and the second terminal.
Owner:PRAGMATIC PRINTING
Resistive device and method for its production
ActiveUS20050077579A1Efficient changeWide resistance rangeSemiconductor/solid-state device detailsSolid-state devicesDopantSemiconductor materials
A resistive device includes a resistive region of a semiconductor material that includes a first region and a second region, wherein the first region has a higher dopant concentration than the second region, and wherein a resistance-determining width of a current path through the first region is determined by a portion of a doping boundary between the first region and the second region.
Owner:INFINEON TECH AG
Resistive device and method for its production
ActiveUS7208814B2Efficient changeWide resistance rangeSemiconductor/solid-state device detailsSolid-state devicesDopantSemiconductor materials
Owner:INFINEON TECH AG
Resistive sensor array readout circuit based on two-wire system equipotential method
InactiveCN110617841AEliminate crosstalk errorsEliminate distractionsConverting sensor output electrically/magneticallyObservational errorResistive sensors
The invention discloses a resistive sensor array readout circuit based on a two-wire system equipotential method, and belongs to the technical field of sensors. The readout circuit aims at an M * N two-dimensional resistive sensor array sharing a row line and a column line. The readout circuit comprises a current feedback operational amplifier, a column line driving operational amplifier, a row multiplexer, a column multiplexer, a test current setting resistor, a reference voltage source and two connecting lines which are respectively arranged for each row line and each column line of the resistive sensor array. The invention further discloses a readout method of the readout circuit, and a sensing system. The two-wire system equipotential method is taken as a key technology, so measurementerrors caused by connecting cable lead resistance, cable joint contact resistance and multi-way switch channel conduction resistance can be effectively eliminated, and the measurement precision of the resistive sensor array is greatly improved.
Owner:久耀电子科技(江苏)有限公司
A kind of high abrasion resistance paste
ActiveCN114121336BSmall resistance change rateSimple preparation processNon-conductive material with dispersed conductive materialAdjustable resistorsSlurryHigh wear resistance
The invention discloses a high wear-resistant resistance slurry. The mass percentage of the resistance slurry is composed of: conductive powder 15%-35%, glass bonding phase 25%-45%, additive 1%-8%, 30%-45% organic carrier, the conductive powder is graphite composite ruthenium dioxide, and the glass bonding phase is lead borosilicate glass powder with a softening temperature of 500-600°C. The resistance slurry of the invention has the characteristics of stable resistance value, good temperature coefficient and good wear resistance, and can meet the use requirements of glass glaze fine-tuning potentiometer products.
Owner:西安宏星电子浆料科技股份有限公司
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