33results about How to "Implement pressure detection" patented technology

The invention relates to a device and a method for determining radial permeability of a compact rock core. The device comprises a rock core clamping device, an oil pressure pump, a pressurizing pump, an intermediate container, a pressure control system, a pressure acquisition system and a data analysis system, wherein the rock core clamping device is used for clamping a rock core, the oil pressure pump is used for applying confining pressure to the rock core from the axial direction to the end surface of the rock core, the pressurizing pump is used for applying air pressure to the rock core clamping device, the pressure control system is used for controlling the pressure, the pressure acquisition system is used for acquiring the air pressure of the rock core clamping device and the data analysis system is used for fitting data points of the pressure which is measured in an experiment and is varied along the time and calculating the permeability of the tested rock core in the radial direction.

The invention provides a touch display panel, a driving method thereof and an embedded touch display. The touch display panel comprises an array substrate, a plurality of first electrodes arranged on the array substrate, and second electrodes arranged on the same layer of the first electrodes, wherein the second electrodes are electrically insulated from the first electrodes; the first electrodes are used for detecting touch positions in the first time slot; the first electrodes and the second electrodes are used for detecting touch pressure in the second time slot; and the first time slot and the second time slot are not superposed in a time sequence. When the touch display panel is touched, the first electrodes serve as pressure sensing electrodes, the new second electrodes serve as pressure reference electrodes, and a pressure sensing unit is formed by the first electrodes and the second electrodes; and under the action of different pressures, the first electrodes and the second electrodes have different deformations, and the capacitance changes of touched positions are different, so that pressure is sensed according to the detected capacitance changes.

Embodiments of the invention provide a time division multiplexing piezoelectric circuit and a control method thereof, and a piezoelectric apparatus, relates to the field of piezoelectric control, andavoids the problem of low integration degree of the piezoelectric apparatus in the prior art due to the requirement of setting of different driving circuits for pressure tests and ultrasonic generation. The division multiplexing piezoelectric circuit comprises a piezoelectric device, an input module and an amplification output module, the input module is connected with a first node, a signal inputterminal and a first control terminal and used for outputting signals of the signal input terminal to the first node, one terminal of the piezoelectric device is connected with the first node, the other terminal of the piezoelectric device is connected with a fixed voltage terminal to generate ultrasonic waves or perform resetting under the control of the first node or output piezoelectric signals generated by stress to the first node, and the amplification output module is connected with the first node, a second control terminal, a first voltage terminal, a second voltage terminal and a signal output terminal and used for amplifying the piezoelectric signals of the first node and outputting the amplified piezoelectric signals to the signal output terminal.

The invention discloses a display panel, an electronic device and a drive method. The display panel includes a liquid crystal layer, a color film substrate, an array substrate and pressure detection electrodes. The color film substrate is located on one side of the liquid crystal layer and includes a first substrate and a first electrode layer arranged on the first substrate, and the first electrode layer includes a plurality of first electrodes; the array substrate is located on the other side of the liquid crystal layer and includes a second substrate and a common electrode layer arranged on the second substrate, and the common electrode layer includes a plurality of second electrodes; the second electrodes are provided with a plurality of hollow areas; the pressure detection electrodes are arranged in the hollow areas and corresponds to the hollow areas one by one; in the touch control detection period, the first electrodes and the second electrodes are used for conducting touch detection; in the pressure detection period, the first electrodes and the pressure detection electrodes are used for pressure detection; the first electrodes are strip electrodes composed of metal wire grids. The pressure detection is achieved by reusing the common electrode layer, the cost is reduced, and the thickness is reduced.

The invention relates to an intelligent cradle system based on STM32, which is characterized in that it uses STM32 single-chip microcomputer, touch LCD screen, three-axis acceleration sensor, three-axis gyroscope sensor, motor, strain gauge, sound sensor, photoelectric triode, cloak, infrared Sensors, LED lights, and buzzers form an intelligent control module, an intelligent swing module, a sound detection module, a photosensitive shading module, a strain monitoring module, and an infrared alarm module. Use the STM32 single-chip microcomputer to collect data from multiple sensors and perform calculation and processing to obtain the data of the baby, the cradle and the surrounding environment. According to these data, the corresponding function control is performed to realize the intelligent swing of the cradle, sound monitoring, pressure detection, intelligent shading, and timely Alarm and other functions provide a safe and comfortable environment for babies, reduce the burden on adults and reduce the negligence of adults in taking care of babies.

The invention relates to an oil tank truck oil and gas recovery detection device and a detection method. The detection device comprises a main cabinet, a main control module arranged on the main cabinet, a display screen, and a pipe connecting assembly. The main control module comprises a control module, a pressure detection module, a timing module, and a display module used for controlling display of the display screen. The pressure detection module, the timing module and the display module are in communication connection with the control module. The pipe connecting assembly comprises a valve used for testing the air-tightness of an oil tank truck oil and gas recovery system and a cavity communicated with the valve. A cavity pipe communicated with the cavity is connected with the pressure detection module. The device is used to solve the problem in the prior art that oil tank truck oil and gas recovery detection has the shortcomings such as complicated process, low detection efficiency, and high task load. By using the device, the task load of detection personnel is reduced, the detection efficiency is improved, artificial operation error caused by artificial participation is reduced, and the detection accuracy is improved.

The invention discloses a testing device for extruding and lining of concrete, which includes inner and outer layer barrel-shaped dies, a propelling device, an extruding device, an inner template assembling machine and other parts. The testing device disclosed by the invention can realize continuous seamless formation during extruding and lining the concrete, can realize timely filling of gaps between an excavated rock wall and the inner templates by the concrete, can inhibit ground settlement during practical use, can lower the lining cost of a tunnel, can realize automatic accurate assembling of the inner templates, is labor saving , can realize pressure detection for the concrete, and can realize lining strength detection of the concrete as well as onsite observation of the lining quality.

The invention discloses an OLED array substrate, a making method and a display device, and belongs to the field of displayers .The OLED array substrate comprises a substrate body, a thin film transistor (TFT) array arranged on the substrate body, multiple light-emitting units and multiple spacers, wherein the light-emitting units and the spacers are arranged on the TFT array, and the spacers are arranged between adjacent light-emitting units .The OLED array substrate further comprises multiple pressure sensors, and the pressure sensors are arranged between the spacers and the TFT array .According to the OLED array substrate, the making method and the display device, the pressure sensors are arranged below the spacers, and when the spacers are subjected to pressure, the spaces are pressed, so that the pressure sensors are pressed, the pressure sensors produce induction signals due to the pressure, and pressure detection is achieved; pressure induction of an OLED is achieved on the premise that no external component is needed.

The invention discloses a water meter shell pressure detection device and method, and relates to the field of water meter production equipment. The water meter shell pressure detection device comprises a base, and a water meter clamping structure used for fixing a water meter is arranged at the middle end of the top of the base; the water meter clamping structure comprises first convex blocks, a rotating rod, threaded grooves, a sliding plate, a first rotating disc, a rocker, a water inflow hose, a rubber conical pipe, a transverse pipe, a water outflow hose and a conical pipe; the first convex blocks are symmetrically and fixedly installed on the top of the base; the first convex blocks are rotationally connected with the rotating rod through fixedly installed bearings; the first rotating disc is fixedly connected to the right end of the rotating rod; the rocker used for pushing the first rotating disc to rotate is fixedly connected to the outer edge of the side wall of the first rotating disc; and threaded grooves are symmetrically formed in the positions, between the first convex blocks, of the rotating rod. With the water meter shell pressure detection device and detection method of the invention adopted, the water meter can be fixedly installed between the transverse pipes conveniently.

The invention discloses a capacitive pressure detection method. The method is used for detecting pressing force applied to a display screen. A first substrate and a second substrate with electrodes are disposed. Front surfaces of the first substrate and the second substrate are relatively bonded together to enable a gap to be formed between the respectively disposed electrodes. The gap is communicated with air outside the first substrate and the second substrate. At least one substrate in the first substrate and the second substrate is used as a pressure bearing surface. The pressure bearing surface is attached below a display module of the display screen. The method does not need to rely on components in the display screen to form pressure detection capacitance, and can be suitable for use in most current display screens. The method provides physical support for forming the gap of the pressure detection capacitance, and ensures that gap thickness is controllable. The method ensures acapacitance change rate of the pressure detection capacitance through a substrate material and a foam cotton medium, and improves sensitivity of pressure detection.

The invention discloses an anticorrosive reaction kettle convenient for pressure detection. The anticorrosive reaction kettle comprises a reaction kettle body, a connecting bracket, a support frame and a secondary platform, wherein a motor is arranged on the top of the reaction kettle body and connected with a stirring shaft; the stirring shaft is positioned in the reaction kettle body; stirring paddles are connected onto the stirring shaft; a material inlet and a material outlet are formed in the reaction kettle body; the reaction kettle body is a double-layer reaction kettle; the reaction kettle body comprises an outer reaction kettle shell and an inner reaction kettle shell; a filling layer is arranged between the inner reaction kettle shell and the outer reaction kettle shell; the inner reaction kettle shell is connected with a pressure detection device; and a secondary pressure detection device is arranged between the outer reaction kettle shell and the inner reaction kettle shell. According to the anticorrosive reaction kettle convenient for pressure detection provided by the invention, seal can be effectively realized, the pressure of the reaction kettle is conveniently detected, and the corrosion resistance of the reaction kettle is excellent.

According to the MEMS sensor and a preparation method thereof provided by the invention, when the back surface of a second substrate is stressed, second electrode layers deform, and the distances between the two first electrode layers and the corresponding second electrode layers change along opposite directions, the magnitude of the externally applied pressure can be determined by detecting the difference between the capacitance values of the detection capacitors formed by the second electrode layers and the two first electrode layers, and pressure detection is achieved.

The invention provides a lifting-type spray quenching machine tool for a large thin-walled cylinder. The lifting-type spray quenching machine tool comprises a rotary spray quenching system, a hydraulic jacking platform, a box-type frame supporting and guiding device and a water supply and drainage system, wherein the rotary spray quenching system surrounds the inner side and the outer side of a cylindrical workpiece; the rotary spray quenching system is used for evenly spraying water to the inner side and the outer side of the workpiece to quickly cool the surface of the workpiece; the hydraulic jacking platform is used for supporting the rotary spray quenching system and adjusting the height of the rotary spray quenching system; at the same time, the hydraulic jacking platform enables therotary spray quenching system to rotate around the hydraulic jacking platform in a spray quenching process; the box-type frame supporting and guiding device is arranged outside the hydraulic jackingplatform; the box-type frame supporting and guiding device is used for fixing and supporting the hydraulic jacking platform and guiding the vertical lifting and lowering thereof; the water supply anddrainage system is used for supplying water to the rotary spray quenching system in the spray quenching process of the workpiece; and at the same time, the water supply and drainage system realizes pressure detection and return water collection in the spray quenching process. The lifting-type spray quenching machine tool for the large thin-walled cylinder can evenly spray water to the inner side and the outer side of the workpiece through the rotary spray quenching system so as to quickly cool the surface of the workpiece, thereby quickly and effectively breaking a vapor blanket on the surfaceof the quenched workpiece, improving heat transfer efficiency, and reducing deformation.

The invention discloses a waterproof pressure sensor and a packaging method, and the sensor comprises a circuit board, a shell, a chip and a waterproof glue layer. The shell is installed on the circuit board, a containing space is defined by the shell and the circuit board, and a dispensing opening is formed in the shell; the chip is arranged on the circuit board and is positioned in the containing space; and the waterproof glue layer is filled in the containing space and covers the chip, and the waterproof glue layer comprises transparent solid glue and insoluble opaque particles filled in the transparent solid glue. A CCD visual detection system or a common optical microscope can be adopted to observe the proportion of the opaque particles, and then the proportion of the opaque particlesis compared with the proportion of the opaque particles in the standard glue thickness, so that whether the thickness of the waterproof glue layer is within a reasonable range or not is detected.

The invention belongs to the field of smart cities, and particularly relates to a control method of a fire-fighting automatic spraying system based on a smart city. The method is carried out in cooperation with a control device of the fire-fighting automatic spraying system based on the smart city, the control device of the fire-fighting automatic spraying system based on the smart city comprises a water pipe connecting pipe, a connecting pipe thread is formed in the inner wall of the water pipe connecting pipe, a rack base is fixedly arranged on the water pipe connecting pipe, a rack base water channel is formed in the rack base, a rack base rubber water sealing ring is fixedly arranged on the rack base in the rack base water channel, a rack is fixedly arranged on the rack base, a watering control mechanism is arranged in the rack, a pressure measuring pipe communicates with an inner cavity of the water pipe connecting pipe is fixedly arranged on the water pipe connecting pipe, a pressure measuring mechanism is arranged in the pressure measuring pipe, an electronic shell is fixedly arranged on the outer wall of the water pipe connecting pipe, and an electronic control analysis mechanism is arranged inside and outside the electronic shell.

A touchscreen and a touch display apparatus are disclosed. The touchscreen includes a transparent substrate, the transparent substrate includes a first surface and a second surface, a transparent first conductive layer is disposed on the first surface, a transparent second conductive layer is disposed on the second surface, the first conductive layer includes a plurality of first touch induction electrodes and first pressure induction electrodes that extend in a first direction and that are alternately arranged in a second direction, the second conductive layer includes a plurality of second touch induction electrodes and second pressure induction electrodes that extend in the second direction and that are alternately arranged in the first direction, the plurality of first touch induction electrodes and the plurality of second touch induction electrodes are configured to detect a position of a touch operation on the touchscreen, and the plurality of first pressure induction electrodes and the plurality of second pressure induction electrodes are configured to detect pressure of the touch operation on the touchscreen. The touchscreen can detect touch pressure without increasing thickness of the touchscreen.

The invention discloses a capacitive pressure detection device. The device is used for detecting pressing force applied to a display screen, and includes a first substrate and a second substrate respectively provided with electrodes and a data processing module. Front surfaces of the first substrate and the second substrate are relatively bonded together to enable a gap to be formed between the respectively disposed electrodes. The gap is communicated with air outside the first substrate and the second substrate. At least one substrate in the first substrate and the second substrate is used asa pressure bearing surface. The pressure bearing surface can be attached below a display module of the display screen. The device does not need to rely on components in the display screen to form pressure detection capacitance, and can be suitable for use in most current display screens. The device provides physical support for forming the gap of the pressure detection capacitance, and ensures that gap thickness is controllable. The device ensures a capacitance change rate of the pressure detection capacitance through a substrate material and a foam cotton medium, and improves sensitivity ofpressure detection.