34 results about "Passive resistance" patented technology

A control system and method for a steer-by-wire system with the passive resistance torque is provided. The control system includes a controller configured to compensate for a passive resistance torque and to generate the required active torque using a three loop control structure: torque feedback loop, rate feedback loop, and steering wheel angle feedback loop. The torque feedback loop is based on an estimated steering torque signal calculated from a steering angle signal, a steering angle rate signal, and a motor current signal.

Passive resistance musculo-skeletal manipulation massage devices with a set of three portable devices, each capable of being hand held and each specifically designed to allow users to effectively manipulate specific areas of the musculo-skeletal system. The portable devices are made of rigid or semi rigid material. The first portable device is oblong in shape and has a pair of protrusions directed upward and spaced to allow room for a person's larger muscles. The second portable device being wedge shaped. The third portable device having an approximately circular plan view shape and including a single centrally disposed raised protrusion. The portable devices are placed between a flat surface and the user's back and neck area. A preferred embodiment includes that the the first portable device has a radiused under portion to allow the user to rock on the device.

Memories, current mode sense amplifiers, and methods for operating the same are disclosed, including a current mode sense amplifier including cross-coupled p-channel transistors and a load circuit coupled to the cross-coupled p-channel transistors. The load circuit is configured to provide a resistance to control at least in part the loop gain of the current mode sense amplifier, the load circuit including at least passive resistance.

The invention discloses a resistive current remote online monitoring system for a power transmission line arrester. The system comprises a field device and an indoor device adapted to the field device, wherein the field device comprises a signal acquisition and output module and a signal processing and transmitting module connected with the signal acquisition and output module, the signal acquisition and output module comprises a passive resistance online monitor, a signal input device connected with the passive resistance online monitor, and an optical fiber isolation and signal output device connected with the signal input device; the signal processing and transmitting module comprises an analog signal receiving and converting device connected with the optical fiber isolation and signal output device, a phase locked loop connected with the analog signal receiving and converting device, a singlechip connected with the phase locked loop, and a GPRS (General Packet Radio Service) signal and high-frequency radio signal output device connected with the singlechip, wherein a high-efficiency solar battery and a battery management system are connected to the singlechip. The system can be used for mastering the working conditions of an arrester, recording all conditions of the arrester and analyzing and displaying the conditions in time.

The invention discloses a diaphragm containing an active interlayer, a preparation method and application thereof. The diaphragm contains the active interlayer and an insulating layer and a base film layer which are adhered to the upper surface and the lower surface of the active interlayer respectively, wherein the base film layer plays the roles of insulation and supporting; active substances are contained in the active interlayer; and the active substances are selected from one or more of I2, S, V2O5, MoO3, MnO2, Bi2O3, Bi2Pb2O5, CFx (x being greater than or equal to 0 and smaller than or equal to 1.5), CuCl2, CuF2, CuO, CuS, FeS, FeS2, Ni2S2, AgCl, Ag2CrO4. The diaphragm disclosed by the invention is provided with the base film layer, the active interlay capable of reacting with lithium dendrites, and the insulating layer, and the active interlayer can react with the lithium dendrites to generate an inert product, so that the diaphragm is used for performing active attack converted from passive resistance on the lithium dendrites, and the generated inert product also can further improve the mechanical strength of the diaphragm. According to the diaphragm disclosed by the invention used for lithium ion batteries or metal lithium batteries, the generation of the lithium dendrites can be obviously inhibited, so that the specific discharge capacity of the battery is improved, and the cycle performance of the battery is greatly promoted.

The invention relates to a method utilizing a horizontal interlayer between foundations to avoid destructive effect on building upper structure from earthquake horizontal waves. The method includes designing one or more than one rafts between foundations, designing one or more horizontal separating layer (sand-gravel cushion) smooth surface (slabs with different upper and lower materials and minimum friction index) between the rafts, thereby eliminating and avoiding transmission of earthquake horizontal waves from up to down and from foundation to foundation after the upper and lower structure of the foundations are separated, and then maintaining safety and stability of upper structure of buildings. Passive resistance from the upper main structure is changed to positively eliminate source from lower foundations. Energy from earthquake horizontal waves can be freely released from horizontal layers between foundations, and safety and stability of the upper building main structure can be maintained when the foundations release earthquake energy. The method is a major breakthrough for high layer buildings to resist earthquake disaster, is low in cost, feasible and convenient, and good in earthquake effect.

The invention relates to the technical field of the integrated circuits and specifically relates to a folding and interpolating analog-digital converter employing an offset averaging and interpolation shared resistance network. The folding and interpolating analog-digital converter is composed of a single T / H circuit, a reference resistor string, a pre-amplifying circuit array, an offset averaging and interpolation shared resistance network (having the interpolation coefficient of 1), a folding circuit (levels 1-N) having the folding coefficient of F, a comparator array, a digital coding circuit and a binary digit code output drive motor, wherein interpolation is performed in a passive resistance mode, and passive interpolation resistance and offset averaging resistance are shared and fused. The folding and interpolating analog-digital converter employing the offset averaging and interpolation shared resistance network has the advantages that the influence of the passive interpolation resistance on the offset averaging resistance when the offset averaging resistance is cascaded with the passive interpolation resistance, other independent interpolation circuit modules in a traditional structure are omitted and the power consumption is reduced, the cascade bandwidth in a folding and interpolating signal path can be designed smoothly and the design of system high bandwidth can be realized more easily.

Physically unclonable function (PUF) memory employing static random access memory (SRAM) bit cells with added passive resistance are disclosed. Added passive resistance can enhance imbalance between transistors in the SRAM bit cell for improved PUF output reproducibility. Enhancing transistor imbalance can more fully skew the SRAM bit cell for increased PUF output reproducibility while still achieving the benefits of output randomness. In one exemplary aspect, added passive resistances in the SRAM bit cell are coupled to a drain of one or more pull-down N-type FETs (NFETs)) in one or more cross-coupled inverters in the SRAM bit cell to enhance imbalance between the inverters. Enhanced imbalance between the inverters increases sensitivity in the output voltage of the SRAM bit cell for a given change in input voltage resulting in greater skew of the SRAM bit cell for increased reproducibility.

The invention discloses a method, a device and a system for realizing signal transmission with low power consumption and carrier suppression correction. The method comprises the following steps: analog baseband signals are sent to a transmission low-pass filter, and out-off-band harmonic waves are filtered by the transmission low-pass filter to be output in a mode of low-frequency signals; a direct-current correction module acquires the low-frequency signals output by the transmission low-pass filter and calibrates the low-frequency signals output by the low-pass filter according to the information of the acquired low-frequency signals; the transmission low-pass filter sends the calibrated low-frequency signals to a transmitter mixer, and the transmitter mixer carries out up-conversion treatment on the low-frequency signals and outputs radio-frequency signals; and a passive resistance array attenuator controls the power of the radio-frequency signals output by the transmitter mixer and transmits the radio-frequency signals. In the method, the device and the system provided by the invention for realizing carrier suppression, the passive resistance array attenuator is adopted to realize the purpose of controlling signal power, and the signal power does not need to be biased by current, thereby greatly reducing the power loss.

A single-phase inverter test circuit for a modular multi-level convertor and a test method therefor. The method comprises: constructing a single-phase test circuit by using two modular multi-level bridge arms; connecting a passive resistance-inductance load; by means of the open-loop passive inversion algorithm and capacitive balancing algorithm, outputting a sine voltage and a sine current; and simulating the normal operation of a modular multi-level convertor, thereby completing the test of the electrical and capacitive balancing algorithms of the modular multi-level convertor. In the test circuit, a direct-current side is supported by a voltage source, so that in the control algorithm, there is no need to control a direct-current voltage, thereby simplifying the controller algorithm of the test. In the test circuit, a direct-current voltage source at the direct-current side is connected to a capacitor in parallel, so that bidirectional currents can flow in a direct-current bus and bridge arms, thereby solving the problem that a sub-module can be charged only, but cannot discharge when the direct-current voltage source is tested separately.

The invention discloses a semi-passive resistance control system having active enhancement, the system being suitable for sports equipment having a dragging assembly. The system comprises a resistance adjusting module, an energy storage device, and a control module. The energy storage device is capable of providing resistance to the dragging assembly when a user pulls the dragging assembly, and reducing the output resistance change generated by increase of the pulling stroke. The control module is capable of passively compensating the output resistance to keep the output resistance stable according to sensing data feed back by a sensor inside the system when the user pulls the dragging assembly as well as actively compensating the output resistance according to a default control mode so as to enable the user to feel the expected resistance.

The inventio discloses a geogrid with a negative poisson ratio effect, and a preparation method thereof, and solves the problems of failure in a reinforced earth project and poorer stability of a rib-earth structure since rib materials are easy to pull out in the prior art. According to the geogrid with the negative poisson ratio effect, and the preparation method thereof provided by the invention, the negative poisson ratio effect can be produced, the interaction of the rib materials and fillers is improved, the interlocking of ribs and earth is increased through node expansion, and a pseudo-friction coefficient of a rib-earth interface is increased; and a passive resistance force of grid ribs is increased, so that the stability of a high and large reinforced earth structure is improved.The technical scheme is that the geogrid with the negative poisson ratio effect comprises the grid ribs and node sleeves, wherein each two adjacent grid ribs are spliced to form a net structure through the node sleeve; small nodes are arranged at two ends of each grid rib; the small nodes of each four grid ribs are spliced to form a big node and are fixed through the node sleeve; and under an external load effect, the small nodes slide in the node sleeves , so that the node sleeves are expanded and deformed in a thickness direction, and the negative poisson ratio effect is produced.

The invention relates to a massive accumulation body boundary resistance experiment determination device and an experimental method. An after-calamity roadway is unstable and collapsed to cause the blockage of a rescue path, so that rescue is blocked, the time of rescue workers for arriving a resident area of rescuable personnel is delayed, and at the moment, how to safely and quickly pass becomes a key of realizing safe, quick and effective rescue after calamity. Pressure sensors are arranged on the side face of an experiment box, and are arranged in seven columns longitudinally and four pieces in each row; each pressure sensor is connected with a data acquisition instrument through a data cable; the data acquisition instrument is connected with a computer through the data cables. The massive accumulation body boundary resistance experiment determination device and the experimental method provided by the invention are applied in experiments of accumulation body boundary passive resistance and horizontal force between massives.

The invention discloses a detection method of the passive resistance of an electronic device. According to the detection method, a reasonable tap position of an adjustable resistor is selected according to the theoretical range of testing resistance; collection and measurement are carried out at fixed time points; when resistance in different range intervals is measured, the adjustable resistor is switched to a different tap position; a direct-current alternating measurement method is adopted to further improve the accuracy of the resistance according to the selected tap position; and finally, with two methods mentioned in descriptions of the invention used in combination, the resistance value of the electronic device is calculated through adopting a curve fitting method. With the detection method provided by the technical schemes of the invention adopted, measurement accuracy and precision can be ensured. The detection method has a high engineering application value.

The invention discloses an LCP packaging substrate with a built-in passive resistance-capacitance element and a manufacturing method. The LCP packaging substrate comprises a thin film resistor-capacitor,an LCP substrate base plate, at least one LCP substrate transition sheet, at least two LCP substrate bonding sheets, and an LCP substrate cover plate, wherein theLCP substrate bottom plate, theLCPsubstrate bonding sheet, theLCP substrate transition sheet, thethin film resistor-capacitor, theLCP substrate bonding sheet and theLCP substrate cover plate are laminated and packaged twice in sequence, one LCP substrate bonding sheet is located between two LCP substrates, and electrodes of the thin film resistor-capacitor are led out through surface layer electrode electroplating copper columns.The high-precision and high-stability thin-film resistor and the thin-film capacitor are buried in the LCP packaging substrate in a multi-layer laminated packaging mode, the thin-film resistor-capacitors can be flexibly buried among multiple layers according to the size design, the surface utilization rate of the LCP substrate is greatly increased, and the substrate assembly density is improved.

The invention discloses a high-precision passive resistance generator for compensating hardware error influence. The high-precision passive resistance generator comprises a main control unit, a resistor network and a resistance measuring unit, wherein the resistor network and the resistance measuring unit are connected with the main control unit; the resistor network comprises M serially connected resistors, M normally closed relays which are connected with the resistors in parallel, and M relay driving circuits for controlling corresponding relays to be opened and closed; the relay driving circuits are connected with the main control unit; the main control unit is used for receiving resistance of the resistors in the resistor network and used for confirming an optimal resistance combination mode N by using a hardware error compensation method according to preset resistance R; the resistance is measured by the resistance measuring units; corresponding relays are controlled by the relay driving circuits to be opened and closed, resistors which are connected in parallel correspondingly are in an opened or short circuit state, and passive resistance can be output to compensate hardware error influence. By adopting the high-precision passive resistance generator, the problems that the output precision of a conventional passive resistance generator completely depends on resistance precision and is low in output precision are solved, and the requirement on the precision of a passive resistor in practical use can be met.

The invention discloses a detection method of the passive resistance of an electronic device. According to the detection method, a reasonable tap position of an adjustable resistor is selected according to the theoretical range of testing resistance; collection and measurement are carried out at fixed time points; when resistance in different range intervals is measured, the adjustable resistor is switched to a different tap position; a direct-current alternating measurement method is adopted to further improve the accuracy of the resistance according to the selected tap position; and finally, with two methods mentioned in descriptions of the invention used in combination, the resistance value of the electronic device is calculated through adopting a curve fitting method. With the detection method provided by the technical schemes of the invention adopted, measurement accuracy and precision can be ensured. The detection method has a high engineering application value.

Design methods for the bearing capacity of prestressed concrete structures. In the existing design methods of statically indeterminate prestressed concrete structures, it is difficult to determine the influence of the confinement structures such as columns, walls, and tubes on the prestressed concrete structure and the influence on the design calculation results. A bearing capacity design method for prestressed concrete structures, which distinguishes concrete structures with infinite side structures and concrete structures with limited side structures, and introduces the lateral limit influence coefficient; calculates the cross-sectional area of ​​longitudinal prestressed tendons in the tension zone; determines by The sum of the bending moment value caused by tensioning the prestressed tendon and the design value of the external load bending moment of the control section; the establishment of the effective prestress from the tension to the prestressed tendon; the design value of the tensile strength of the prestressed tendon is higher than the effective prestress Provide resistance partially passively; calculate the bearing capacity of the normal section of the rectangular prestressed concrete flexure member in the unconfined structure; introduce the influence coefficient of the confinement for correction, and obtain the normal section load capacity of the rectangular prestressed concrete flexure member in the confined structure Force calculation formula. The invention is applied to the bearing capacity design of the prestressed concrete structure.

Disclosed is a semi-passive resistance force control system with active augmentation, which is suitable for a sport equipment with a pulling part. This semi-passive resistance force control system with active augmentation comprises a resistance force module, an energy neutral apparatus, and a control module. The energy neutral apparatus can not only provide an output resistance force to the pulling part when the pulling part is pulled by a user, but also reduce the variation of the output resistance force. The control module is able to accept the sensing data delivered by the internal sensors of the semi-passive resistance force control system with active augmentation to passively compensate the output resistance force and make it fixed. Furthermore, the control module can also provide an active adjustment to the output resistance force based on a preset control mode such that the user can experience a desired resistance force.

A single-phase inverter test circuit for a modular multi-level convertor and a test method therefor. The method comprises: constructing a single-phase test circuit by using two modular multi-level bridge arms; connecting a passive resistance-inductance load; by means of the open-loop passive inversion algorithm and capacitive balancing algorithm, outputting a sine voltage and a sine current; and simulating the normal operation of a modular multi-level convertor, thereby completing the test of the electrical and capacitive balancing algorithms of the modular multi-level convertor. In the test circuit, a direct-current side is supported by a voltage source, so that in the control algorithm, there is no need to control a direct-current voltage, thereby simplifying the controller algorithm of the test. In the test circuit, a direct-current voltage source at the direct-current side is connected to a capacitor in parallel, so that bidirectional currents can flow in a direct-current bus and bridge arms, thereby solving the problem that a sub-module can be charged only, but cannot discharge when the direct-current voltage source is tested separately.

The invention discloses a semi-passive resistance control system having active enhancement, the system being suitable for sports equipment having a dragging assembly. The system comprises a resistance adjusting module, an energy storage device, and a control module. The energy storage device is capable of providing resistance to the dragging assembly when a user pulls the dragging assembly, and reducing the output resistance change generated by increase of the pulling stroke. The control module is capable of passively compensating the output resistance to keep the output resistance stable according to sensing data feed back by a sensor inside the system when the user pulls the dragging assembly as well as actively compensating the output resistance according to a default control mode so as to enable the user to feel the expected resistance.

The invention discloses a method, a device and a system for realizing signal transmission with low power consumption and carrier suppression correction. The method comprises the following steps: analog baseband signals are sent to a transmission low-pass filter, and out-off-band harmonic waves are filtered by the transmission low-pass filter to be output in a mode of low-frequency signals; a direct-current correction module acquires the low-frequency signals output by the transmission low-pass filter and calibrates the low-frequency signals output by the low-pass filter according to the information of the acquired low-frequency signals; the transmission low-pass filter sends the calibrated low-frequency signals to a transmitter mixer, and the transmitter mixer carries out up-conversion treatment on the low-frequency signals and outputs radio-frequency signals; and a passive resistance array attenuator controls the power of the radio-frequency signals output by the transmitter mixer and transmits the radio-frequency signals. In the method, the device and the system provided by the invention for realizing carrier suppression, the passive resistance array attenuator is adopted to realize the purpose of controlling signal power, and the signal power does not need to be biased by current, thereby greatly reducing the power loss.

The invention relates to a belt type passive resistance increasing device for a belt conveyor. When the belt conveyor runs, a first belt on a bearing carrier roller rotates along with a belt of the belt conveyor, rotating force is conveyed to a variable-speed carrier roller through the first belt, the variable-speed carrier roller drives a second belt to rotate, along with rotation of the second belt, a first resistance increasing carrier roller connected with the second belt rotates, as the shaft diameter of the variable-speed carrier roller is larger than that of the bearing carrier roller, when the bearing carrier roller rotates by one circle, the first resistance increasing carrier roller does not rotate by one circle, and the speed difference between the second belt and the belt of the belt conveyor is formed, that is, the speed of the second belt is lower than that of the belt of the belt conveyor, so that friction resistance is formed, and the effect of increasing resistance is achieved; and a second resistance increasing carrier roller can increase the pressure between the second belt and the belt of the belt conveyor, so that the resistance effect is improved.

Memories, current mode sense amplifiers, and methods for operating the same are disclosed, including a current mode sense amplifier including cross-coupled p-channel transistors and a load circuit coupled to the cross-coupled p-channel transistors. The load circuit is configured to provide a resistance to control at least in part the loop gain of the current mode sense amplifier, the load circuit including at least passive resistance.

The invention proposes a preparation method of a passive resistance-capacitance element of an LCP flexible substrate, electroplating a Ni / Pd / Au layer on the copper-clad surface of a clean LCP substrate, sputtering a thin-film resistance layer and a conduction band layer on the copper-clad surface, and performing electroplating , photolithography, wet etching to prepare the resistance and conduction band, and then use the lift-off process to make a capacitor layer on the LCP substrate, and finally sputter the thin film conduction band layer on the surface, and perform electroplating, photolithography, wet method Etching, making the upper electrode and conduction band of the capacitor, and completing the preparation of the passive resistance-capacitance element of the LCP flexible substrate. The manufacturing method utilizes thin-film sputtering technology, which can simultaneously produce thin-film resistors and thin-film capacitors on the LCP substrate at one time, and can also fabricate thin-film resistor-capacitance networks to realize thin-film integration and high-precision control of resistor-capacitor components. The embedding of passive resistance-capacitance components in the device LCP system-in-package can greatly save the surface space of the LCP flexible substrate and increase the assembly density of the substrate.

Disclosed is a semi-passive resistance force control system with active augmentation, which is suitable for a sport equipment with a pulling part. This semi-passive resistance force control system with active augmentation comprises a resistance force module, an energy neutral apparatus, and a control module. The energy neutral apparatus can not only provide an output resistance force to the pulling part when the pulling part is pulled by a user, but also reduce the variation of the output resistance force. The control module is able to accept the sensing data delivered by the internal sensors of the semi-passive resistance force control system with active augmentation to passively compensate the output resistance force and make it fixed. Furthermore, the control module can also provide an active adjustment to the output resistance force based on a preset control mode such that the user can experience a desired resistance force.

The invention discloses a high-precision passive resistance generator for compensating hardware error influence. The high-precision passive resistance generator comprises a main control unit, a resistor network and a resistance measuring unit, wherein the resistor network and the resistance measuring unit are connected with the main control unit; the resistor network comprises M serially connected resistors, M normally closed relays which are connected with the resistors in parallel, and M relay driving circuits for controlling corresponding relays to be opened and closed; the relay driving circuits are connected with the main control unit; the main control unit is used for receiving resistance of the resistors in the resistor network and used for confirming an optimal resistance combination mode N by using a hardware error compensation method according to preset resistance R; the resistance is measured by the resistance measuring units; corresponding relays are controlled by the relay driving circuits to be opened and closed, resistors which are connected in parallel correspondingly are in an opened or short circuit state, and passive resistance can be output to compensate hardware error influence. By adopting the high-precision passive resistance generator, the problems that the output precision of a conventional passive resistance generator completely depends on resistance precision and is low in output precision are solved, and the requirement on the precision of a passive resistor in practical use can be met.

The invention discloses a wireless passive resistance corrosion monitoring method and system. According to the technical scheme, the wireless passive resistance corrosion monitoring method comprises the following steps that a prepared flexible corrosion probe is embedded between a protective layer and a reinforcing layer of a pipeline when the pipeline is machined; the flexible corrosion probe comprises an inductance coil LR which is used for forming a mutual inductance coil with a detection probe end inductance coil LT, and wireless passive internal corrosion information acquisition is carried out; the flexible corrosion probe further comprises a number of special resistors which are used as sensitive elements, and the resistance of the resistors can be gradually increased along with the corrosion of the pipeline; and a service environment is selected, and corroding is carried out for a certain period. The wireless passive resistance corrosion monitoring method and system can be used for detecting a corrosion event of a single pipeline or equipment in a non-contact manner and monitoring the integrated corrosion rate of the pipeline or equipment after a period of time; and the method and the system have the advantages that the original structure of the pipeline does not need to be damaged by trepanning, and probe data can be obtained in a non-contact mode.

The invention discloses an enveloping type reinforcing method of an underground structure. The enveloping type reinforcing structure formed by the reinforcing method can not only achieve emergency reinforcement of a tunnel but also permanently reinforce a stratum outside the tunnel to fundamentally solve the problems that stress is performed on the tunnel nonuniformly, settlement is uneven, and elliptical deformation and other appearance damage caused by insufficient passive resistance force of soil on lateral shallow tunnel sides. Under the protection of inside steel plate linings, reinforcedconcrete linings in a reinforced area can still maintain the original safety capability during drilling and punching. In addition, the construction method of the structure has little disturbance to the reinforced area and is the most effective green construction method for reinforcing a tunnel structure.