57 results about "Pressure response" patented technology

The application discloses a kind of mine roadway surrounding rock fissure rock mass bearing capacity detection equipment with drilling, and the application relates to the technical field of coal mine drilling survey, including drill rod, one end of the drill rod is provided with comprehensive drilling bit, water inlet pipe is arranged in the drill rod, and the water inlet pipe is used to supply water to the inside of comprehensive drilling bit, the inside of the drill rod is also provided with detection mechanism, the detection mechanism includes: pressure storage tank, one side of the pressure storage tank is fixedly connected with first connecting pipe, the first connecting pipe is fixedly connected with the output end of water pump at the end away from the pressure storage tank, the present application is provided with pressure detection module, flow rate detection module and high-frequency dynamic pressure sensing module, and combined with multi-parameter synchronous acquisition and coupling analysis, the pressure decay characteristic, flow change characteristic and transient pressure response characteristic can be obtained simultaneously, so as to construct surrounding rock fissure equivalent permeation response parameter, with the advantages of realizing the continuous acquisition of surrounding rock fissure permeation characteristic and its spatial distribution.

This invention relates to a rapid, automatic response urine drainage device and a dedicated drainage material. The leak-proof outer shell 20 of the dedicated drainage material is equipped with an automatic trigger switch that automatically senses the patient's urination status and quickly initiates negative pressure suction. Upon completion of urination, the automatic trigger switch disconnects, and the urine drainage device 10 returns to standby or sleep mode. This technical solution not only results in lower-cost and more widely available nursing consumables, but also offers high sensitivity in urination status monitoring with an extremely low probability of distortion or false triggering. The fast negative pressure response time avoids urine leakage problems caused by delayed urine sensing or delayed negative pressure activation after urination.

The application provides a vacuum mixing process optimization method and system, which comprises collecting mixing container cavity pressure, jacket temperature, material torque, stirring speed, and air extraction flow signal, calculating pressure change rate, torque fluctuation amplitude, air extraction amount per unit time, and pressure fluctuation characteristic quantity, dividing the vacuum mixing process into four stages of initial exhaust, bubble release, viscosity climb, and densification stability; in the initial exhaust section, the vacuum valve opening degree and time length are controlled according to the air extraction amount and the pressure change rate, and the pressure response delay is recorded; in the bubble release section, an air extraction and stop alternating sequence is generated, and the air extraction and stop time length is corrected in combination with the delay; in the viscosity climb section, the target pressure interval is determined according to the torque, temperature, and pressure change rate, and the speed and valve opening degree are cooperatively adjusted to stabilize the pressure; in the densification stability section, a stability criterion is constructed, and the valve opening degree is controlled as needed; when adjacent stages are switched, the target pressure starting point, valve opening degree initial value, speed initial value, and control period of the next stage are corrected according to the end parameters of the previous stage.

The application discloses a kind of vehicle cabin driving posture monitoring and risk event early warning method, system, equipment and medium, belong to vehicle cabin technical field, by respectively being arranged in seat cushion area, backrest area and steering wheel holding area pressure response subarray, synchronous acquisition driver trunk contact pressure signal and hand holding pressure signal, after space position mapping and size alignment, fusion constructs multi-region contact pressure atlas;The atlas is input into cross-specification unified identification model, and the pressure atlas of different resolution specifications sensing array is completed in unified feature space by inter-domain feature alignment constraint to recognize driving posture category;To the continuous recognition result, state merging is merged into continuous posture state section and starting and stopping time and duration are recorded;Four types of abnormality are determined based on the preset risk determination rule set to the state section, generate structured risk event including event type, risk level and starting and stopping time, output to cabin control system to execute early warning intervention.

This invention discloses a complete set of intelligent equipment and application process for continuous aerogel microsphere manufacturing based on spray flash condensation technology. The equipment includes a reaction vessel, a flow pressure-responsive anti-clogging nozzle, and a removable suspended fluid-structure interaction carrier located inside the reaction vessel. The invention employs a flow pressure-responsive anti-clogging nozzle, which uses a pressure response device to control a pressure spring, driving the ejector pin to automatically open and close according to internal pressure changes. This precisely controls the microsphere particle size and avoids clogging, ensuring continuous and stable process operation. The suspended fluid-structure interaction carrier within the reaction vessel features a high-speed dispersion disk that accelerates the reaction, and a filter screen that holds the microspheres and prevents loss. This allows the entire process from gel formation to coating to be completed within the same carrier, avoiding transfer losses.

A method includes initiating a managed pressure drilling (MPD) operation in an MPD system including a rotating control device (RCD) including at least one sealing element and a plurality of pressures sensors placed relative to the at least one scaling element. The RCD is positioned in the MPD system so as to receive fluid exiting an annulus of a wellbore. Further, the method includes creating a pressure spike in the annulus of the wellbore during the MPD operation, and monitoring a pressure differential between the plurality of pressure sensors to determine whether there is a leakage within the RCD.

The utility model is suitable for sensor technical field provides a kind of pressure response integration film sensor, including substrate, lead-out circuit, conductive sensing paste and pressure response paste;Lead-out circuit, conductive sensing paste and pressure response paste are all covered on substrate by printing process, such integrated design can reduce the overall thickness of sensor, and reduce economic cost;Pressure response paste forms pressure zone on substrate, and according to the change of resistance value, the stress change under the static state of sensor is monitored quickly;Conductive sensing paste forms piezoelectric zone on substrate, and according to the change of voltage value, the stress change under the dynamic state of sensor is monitored quickly.

The utility model provides a kind of straightening comb with pressure response anti-scalding, including comb body, be provided with top plate on comb body, the side of top plate is provided with multiple evenly distributed cleaning parts, is provided with bristle in cleaning part, is provided with fan in comb body, the output of fan is provided with multiple ventilation pipes, the side of ventilation pipe is provided with air outlet assembly, the side of comb body is provided with heating plate, heating plate is provided with high temperature pressure sensor, the side of high temperature pressure sensor is provided with heat conducting plate, heat conducting plate is provided with ventilation hole, heat conducting plate is provided with multiple evenly distributed comb teeth. It is provided with fan, heat conducting plate, ventilation hole and other mechanisms, user can open fan by control switch after washing hair, straightening comb can be used as hair dryer at this time, and can realize the air drying effect to hair while using comb tooth to comb hair, better than the air drying effect of traditional hair dryer, also enriches the use effect of straightening comb.

The application relates to an external catheter line with a urine trigger device, mainly comprising a leakage-proof shell, an adsorption material, a suction cavity, a suction tube and a urine trigger device. Compared with the technical mode of sensing urine by using a liquid level sensor, a temperature sensor, a humidity sensor and the like, the nursing consumable prepared by the application has lower cost, high universality, high sensitivity of urination state monitoring, extremely low distortion or false triggering probability, fast negative pressure response time, and can avoid the problem of urine overflow caused by the delay of urine sensing or the lag of negative pressure starting after urination.

The application discloses a tangential force direction identification air bag device based on air pressure response and belongs to the technical field of flexible sensing and human-computer interaction. The device comprises a closed air-filled cavity composed of a flexible material, the inner wall of the closed air-filled cavity is connected with at least one directional reinforcing rib, all the directional reinforcing ribs extend along a first direction, so that the equivalent stiffness of the closed air-filled cavity in the first direction is greater than the equivalent stiffness of the closed air-filled cavity in a second direction perpendicular to the first direction; the closed air-filled cavity is connected with an air pressure sensor and a signal processing unit; when a tangential force is applied from different directions, the air bag deforms differently due to anisotropy of stiffness, so that the volume change difference in the closed air-filled cavity will lead to the air pressure change difference, and the tangential force direction is calculated accordingly. The application only needs a single air pressure sensor, has the advantages of simple structure, low cost, electromagnetic interference resistance, strong environmental adaptability, programmable direction response and the like, and is suitable for soft robot, intelligent artificial limb and safe human-computer cooperation system.

The application provides a nozzle vertical pipe water passing pipe fitting, which aims at solving the technical problems of different spray ranges and low spraying uniformity. The pipe fitting comprises a shell and a pressure response unlocking mechanism, the shell is provided with a water inlet end, a water outlet end and a water passing cavity, the inner wall of the water passing cavity is provided with an axial sliding groove and a spiral guide sliding groove, the water passing cavity is provided with an opening and closing mechanism, the opening and closing mechanism comprises a movable ring, a guide ring, a guide block and a plurality of opening and closing blades, the movable ring is matched with the axial sliding groove through a limiting sliding block, the guide ring is rotationally connected to the movable ring, the guide block is fixed to the guide ring and is matched with the guide sliding groove in sliding mode, the plurality of opening and closing blades are enclosed to form a variable water passing port, and the guide ring is transmissionally matched with the opening and closing blades. The movable ring is limited or released through the pressure response unlocking mechanism, the pipe fitting can automatically control on-off according to water supply pressure, water is supplied to the nozzle under stable pressure, and spraying range consistency and irrigation uniformity are improved.

This invention relates to the field of fluid machinery operation control, and discloses an intelligent control method and system for a high-wear-resistant amphibious self-priming mining pump. The method includes collecting time-series data of the drive motor current and pump chamber pressure, constructing a function mapping relationship; calculating the phase difference and time delay between the current change rate and the pressure change rate; tracking the change process of the synchronization discrimination index around the response mismatch trigger point to determine the duration and magnitude of the synchronization deviation; when the synchronization deviation simultaneously meets preset duration and magnitude conditions, it is determined to be a water inlet interruption state; after determining the water inlet interruption state, the current response recovery time and pressure response recovery time are extracted respectively, the recovery time difference between the two is calculated, and based on the synchronization discrimination index, a drive speed adjustment function is constructed, and the drive speed adjustment function is adjusted in stages to generate a target speed command. This invention has the advantage of improving the accurate identification capability of transient air suction states.

The utility model discloses a kind of touch pad and touch equipment of bending no crease, it is related to pressure touch pen technical field, solve the technical problem that the current touch pad will appear crease after pen, leading to the sensitivity reduction of stylus.The touch pad includes flexible circuit board;M row N column touch response block is arranged on the front of the flexible circuit board, and back surface is provided with A row B column pressure response block;The row spacing between each row of the touch response block is same with the row spacing between each row of the pressure response block;Wherein, M≠A, the gap between each row of the touch response block is not overlapped with the gap between each row of the pressure response block.The utility model can significantly improve the sensitivity of touch pad.

The application discloses an electromagnetic valve intelligent early warning diagnosis method and system based on a neural network, relates to the technical field of industrial equipment state monitoring, and comprises the following steps: synchronously collecting instruction, coil current and outlet pressure signals of the electromagnetic valve, extracting multi-dimensional time domain and state characteristics after pretreatment; a multilayer perceptron neural network is constructed and trained, the distribution mode of normal data in a characteristic space is learned to output an abnormal probability; a threshold determination result based on a physical rule is combined with the abnormal probability of the neural network to realize fine diagnosis of four levels of health states, i.e., normal, degradation, early warning and failure; when the state is abnormal, the fault types of an electromagnetic coil fault, a valve core sticking and an internal leakage of the electromagnetic valve are accurately identified through a preset rule base according to characteristic combinations such as current, pressure response and holding capacity. The application improves early warning capability and diagnosis precision of faults, and provides an effective intelligent solution for predictive maintenance of the electromagnetic valve.

The application provides a sensor array Internet of Things system, method and medium for pipe network structure checking. The system comprises a pipe network operation management platform; the pipe network operation management platform is configured to: perform at least one pressure disturbance based on at least one set of disturbance parameters; acquire pressure response data corresponding to the at least one pressure disturbance; determine a pipe connection relationship based on the pressure response data and a current pipe network atlas; determine an updated pipe network atlas and update information based on the pipe connection relationship and the current pipe network atlas; determine a target sensor and a target acquisition parameter based on the update information; and control the target sensor to collect information of an updated area based on the target acquisition parameter.

The utility model relates to the technical field of tactile sensor, and disclose a novel flexible tactile sensor, including setting in the middle position's flexible base, the upper surface and the bottom of flexible base all are provided with pressure response layer, two pressure response layers mutually far apart's one side all are provided with electrode layer, the most outside of flexible base is provided with encapsulation layer. This novel flexible tactile sensor, through adopting polydimethylsiloxane as flexible base, combines pressure response layer and flexible electrode layer, makes sensor have excellent flexibility, can closely fit complex curved surface object, adapts to a variety of application scenarios, and the three-dimensional conductive network structure formed by carbon nanotube in elastomer can realize high-precision perception and accurate measurement to pressure, touch and other tactile information, each layer material all adopts common and the material of lower cost, has simplified the manufacturing process, has reduced production cost, is favorable to large -scale production and popularization and application.

The utility model provides a table tennis bat relates to the technical field of intelligent sports equipment, the table tennis bat includes: including handle and bottom plate, bottom plate is by base material layer, eight layer panel layer and the superlight carbon felt piece of being clamped between each layer constitutes, superlight carbon felt piece mixes into piezoelectric ceramic piece. Bottom plate integration pressure response chip and micro acceleration sensor, handle built -in energy collection device and bluetooth module. Pressure response chip and acceleration sensor are connected bluetooth module and energy collection device respectively, can gather the ball pressure and motion acceleration data in real time to the external device through bluetooth module wireless transmission. The structure not only has promoted the rigidity, stability and damping performance of bottom plate, has also realized the intelligent perception and wireless transmission of the ball data, is helpful to the scientific training and technical analysis of athlete.

Systems and apparatuses are included that are configured to determine an effectiveness of apparatus and methods used to diagnose and unblock microvascular obstruction (MVO). An infusion system blocks antegrade flow for a short time and measures vascular pressure response as an infusate is infused in stepwise fashion at increasingly higher flow rates. During the antegrade flow occlusion, calculations of a real-time vascular resistance can be obtained using a formula R(t)=(t) / Qmean(t) where: Qmean (t) is flow mean values generated by the infusion system; P(t) is a distal pressure response in a vessel generated from the infusion of the infusate; and R(t) is the calculated real-time vascular resistance using the two other known parameters.

This invention relates to the field of response time testing technology for electro-hydraulic proportional valves, and discloses a method and system for testing the response time of electro-hydraulic proportional valves. The method includes: acquiring multi-point pressure, step response, pipeline length, and medium parameters, and unifying the time base to obtain an original pressure sequence; constructing an inverse filter spectrum to remove damping interference and recover sharp peaks; calculating hysteresis offset based on pipeline and medium parameters to perform time delay compensation and obtain an aligned sequence; truncating non-stationary segments to eliminate residual delay deviations; constructing a dynamic response dataset and extracting harmonic frequency domain representations, and reconstructing the pressure sequence by inverse transformation and superimposing compensation factors; calculating the deviation integral, adjusting dynamic compensation parameters and weighting corrections, and outputting an optimized reconstructed response sequence. This method can achieve accurate reconstruction of the true pressure response of the proportional valve, thereby improving the accuracy and reliability of response time testing.

The application discloses a real-time signal early warning system based on geotechnical engineering slope monitoring and belongs to the technical field of geotechnical engineering safety monitoring. The system comprises four modules of multi-source data sensing, multi-field coupling mechanism analysis, critical state early warning discrimination and multi-modal early warning release. Four types of slope data are collected and classified as primary and secondary, and the data validity is ensured through standardized preprocessing. Based on the physical mechanism, effective rainfall, pore pressure response and microseismic damage function are constructed, and the internal disturbance index of the slope is generated by coupling with the geometric mean method. Based on the critical state line theory, the dynamic critical displacement rate function and the ratio type early warning index are constructed, and after being modified and smoothed, the discrete early warning grades are generated by combining the time accumulation mechanism. The grading early warning signals are output according to the early warning grades, the emergency equipment is linked, and closed-loop management is simultaneously performed. The application realizes the unbiased coupling and dynamic critical discrimination of multi-source data of the slope, and provides reliable technical support for the safety prevention and control of the slope engineering.

This invention discloses a method and system for suppressing zero-point drift in automotive seat pressure sensors, relating to the field of automotive equipment. The method includes: acquiring the static zero-point drift reference value of the automotive seat pressure sensor in an unoccupied state, as well as the cumulative occupant loading time and cumulative occupant unloading recovery time; acquiring the cumulative degree of seat cushion creep damage; calculating the coupling deviation based on the ratio of the absolute difference between the current zero-point drift rate and the theoretical drift rate caused by temperature changes to the average zero-point drift rate within the analysis window; determining the dominant factor type by considering the current zero-point drift source as a separate determination based on the cumulative degree of seat cushion creep damage and the coupling deviation; and performing dynamic zero-point compensation on the original sensor output signal to obtain the corrected pressure response value. This solves the problems of poor zero-point drift suppression and inaccurate sensor detection in existing automotive pressure sensors.

The utility model discloses an energy -conserving type ironing table based on pressure response control gas output relates to the technical field of press -iron equipment, and device main body left and right installation has drive mechanism, and drive mechanism right -end is connected with moving mechanism and air guide mechanism, and moving mechanism top is connected with the limit stop, limit stop and device main body top sliding connection, and air guide mechanism includes vortex fan blade, and vortex fan blade bottom is equipped with the air deflector, and device main body top is equipped with electrostatic adsorption board, vortex fan blade is located electrostatic adsorption board bottom. Through drive mechanism drive air guide mechanism operation, can make moving mechanism again with limit stop and workpiece transmission to sealed storehouse, and the ironing board will carry out the ironing pressure to workpiece, and the gas of extra will pass through electrostatic adsorption board and enter device main body inside, thereby make vortex fan blade and air deflector will high temperature gas flow retransmission to sealed storehouse inside, thereby make the gas flow of sealed storehouse inside to workpiece and carry out the ironing pressure.

This application relates to the field of water treatment technology, and discloses a control method, water treatment device, and medium for a water treatment apparatus. The method includes: in response to a venting command, a controller controls the venting valve to open and controls the water pump to start; after the water pump starts, a negative pressure is generated inside the hot tank; a one-way air inlet valve is configured to automatically open when its positive pressure value is greater than a first threshold, and a one-way air outlet valve is configured to automatically open when its positive pressure value is greater than a second threshold; during the venting process, the controller keeps the venting valve open and the water pump running until a preset venting termination condition is met. This application utilizes the automatic pressure response characteristics of a mechanical one-way valve to achieve adaptive adjustment of negative pressure during the venting process without the need for a pressure sensor and an electrically controlled air inlet valve, simplifying the control logic, reducing hardware costs, and improving venting efficiency and system reliability.

This invention discloses an implantable stent for aqueous humor drainage in glaucoma, belonging to the field of ophthalmic implantable medical devices. The stent comprises a flexible tubular body, a passive pressure regulating valve, a pressure response module, an anchoring structure, a variable-diameter main drainage channel, a porous diffuse diversion structure at the tail, and a surface functionalized layer. The inflow end is placed in the anterior chamber or anterior chamber angle, and the outflow end is placed in the suprachoroidal space. When the pressure difference between the inflow and outflow ends reaches a preset threshold, the pressure valve opens, allowing aqueous humor to be uniformly introduced into the suprachoroidal space through the main channel and the porous diversion structure; when the pressure difference is below the threshold, the valve closes, limiting excessive drainage. The anchoring structure fixes the stent's position and prevents displacement. This invention achieves effective aqueous humor drainage while reducing the risk of excessive drainage, and improves the stent's implantation stability, drainage uniformity, and long-term follow-up evaluation capabilities.

The utility model relates to an adjustable air bag type pelvic floor muscle biofeedback trainer, and particularly relates to the technical field of medical apparatus and instruments. The adjustable air bag type pelvic floor muscle biofeedback trainer is composed of a medical silica gel air bag, a pressure regulating module, a pressure sensor, a main control unit and a display terminal. The air bag is provided with annular convex textures and is divided into a proximal chamber and a distal chamber; the pressure regulating module is connected with a micro air pump and an electromagnetic valve through a tee joint; a silicon piezoresistive sensor is embedded in a double air guide pipe to detect pressure in real time; the main control unit drives an air path and processes data, which are transmitted to the display terminal through SPI or wireless communication. The pneumatic structure realizes biomechanical feedback in the mechanical domain, and through independent regulation and control of the double chambers, dynamic adaptation of the air bag and rapid pressure response, the training precision and adaptability are improved, the biofeedback mechanism is converted from the electrophysiological domain to the mechanical domain, the "detection-feedback-regulation" closed loop is realized through the pneumatic structure innovation, a high cost-effective solution is provided for the pelvic floor rehabilitation field, and the hardware cost is reduced.

The application relates to the field of plastic pipe connection, in particular to a reinforced plastic pipe connection structure. The reinforced plastic pipe connection structure comprises a socket pipe fitting and a spigot pipe fitting fixed in the socket pipe fitting; an annular pressure response cavity surrounding the spigot pipe fitting is defined between the inner wall of the socket pipe fitting and the outer wall of the spigot pipe fitting, the spigot pipe fitting is provided with a pressure guide channel communicating with the response cavity; an adaptive locking mechanism is further arranged in the response cavity, the adaptive locking mechanism comprises a driving assembly capable of axially sliding along the socket pipe fitting and a plurality of locking assemblies capable of radially sliding along the socket pipe fitting; a limiting reinforcing sleeve is further fixed outside the socket pipe fitting, the limiting reinforcing sleeve extends to the outside of the spigot pipe fitting and is used for gradually elastically limiting the bending deformation of the spigot pipe fitting. The reinforced plastic pipe connection structure can improve the installation stability and use safety of the conveying pipe.

The application relates to the technical field of building materials, and particularly discloses a production method of green building material recycled concrete, which comprises the following steps: vacuum impregnation treatment is carried out on recycled coarse aggregate to obtain functional recycled aggregate; the functional recycled aggregate is mixed with cementitious material, fine aggregate, a pressure response type slow-release pH regulator and water, the concrete preform is placed and maintained for 18-24 hours under the condition that the temperature is 25-30 DEG C and the humidity is greater than or equal to 90%, the treated preform is placed in a closed maintenance equipment, and variable pressure maintenance including pressure increase-steady pressure-pressure release circulation is carried out. In the application, microorganisms and reaction ions are preloaded in the recycled aggregate by vacuum impregnation, and a pressure response type slow-release pH regulator is introduced in the concrete mixing stage, which can drive the microorganism mineralization reaction and the CO2 carbonization reaction to occur in the recycled aggregate-new mortar interface transition zone, and the obtained concrete component has better overall performance and carbon fixation capacity.

A downhole check valve may be used in a wellbore to allow a variety of pressure diagnostics to be easily captured and compared within a single monitor well. Pressure responses from below the check valve are open to the formation and provide detailed stress shadowing, poroelastic pressure response, and other sensitive pressure measurements from the open toe, allowing ingress from the wellbore while additional responses can be obtained above the check valve provided the pressure events below do not overcome the pressure above or the spring setting of the valve. This allows for an increase in available data points from the monitor well and a direct comparison of geomechanical and mechanical responses.

The application provides a method for overhauling an integrated biochemical immunoassay device and related equipment. In the method, the control processing unit first sends a timing control instruction to the valve component, while realizing the control of single-channel independent liquid suction and double-channel synchronous liquid suction working conditions. Then, the control processing unit collects real-time pressure data of the common pressure manifold within the operation cycle of each working condition, constructs a time-pressure waveform sequence, identifies the instruction response interval through time domain analysis, extracts the pressure response characteristic value, and excludes the interference of irrelevant pressure fluctuations. Next, the control processing unit calculates the reference deviation value and the coupling deviation value to obtain the flow path anomaly under the superposition of multi-channel load. Finally, the control processing unit identifies the fault type based on the combined characteristics of the reference deviation value and the coupling deviation value and performs the corresponding maintenance operation. The method alleviates the technical problem that it is difficult to find the flow path fault hidden by the low load environment, and improves the accuracy of fault identification.

The utility model discloses a robot gripper device with self -adaptation clamping function, it includes base, drive mechanism, clamping subassembly and flexible response module. Drive mechanism promotes clamping subassembly action through screw -nut structure, and the inside of clamping jaw is equipped with flexible response module, and is composed of pressure response layer, elastic buffer layer and conducting layer, can real -time feedback pressure signal. The arc contact surface is designed to the clamping jaw end, and the clamping adhesion and the protection are improved in combination with elastic buffer layer. Flexible response module supports quick dismounting replacement, and enhances the versatility. The application realizes self -adaptation clamping through intelligent feedback and accurate control, solves the problem that traditional gripper adaptability is insufficient, improves the robot operation efficiency and stability, is suitable for industrial automation application.