1253 results about "Pressure sensitive" patented technology

The invention provides a virtual fitting method based on a color three-dimensional model, and the method comprises the steps: obtaining the body point cloud data of a user through a three-dimensional scanning device, constructing a color three-dimensional human body model, and setting skeleton binding parameters; dividing a pressure sensitive area based on model surface curvature distribution, and generating a dynamic pressure map; performing cloth physical simulation on the model in a physical engine, and extracting deformation response data of the top points of the clothing grids; real-time motion posture data of a user is collected through an inertial sensor, motion distortion correction is conducted, and a joint motion track is generated. Dynamically comparing the joint movement track with the deformation response data to generate a clothing fitting degree deviation report; and optimizing the clothing pattern parameters and the fabric physical attributes based on the deviation report, and outputting a clothing adaptation proposal. According to the invention, the suitability and comfort of clothes can be improved, and the production efficiency and the product quality are improved.

The invention relates to a shear-based acceleration and pressure composite sensor and an assembly method thereof, and belongs to the field of composite sensors. According to the technical scheme of the acceleration and pressure composite sensor based on the shear type structure, an acceleration detection module comprises a mass block of a regular polygon prism structure, and each side face of the mass block is provided with an acceleration sensitive ceramic piece; the pressure detection module comprises a force transmission column of a regular polygon prism structure, and each side face of the force transmission column is provided with a pressure sensitive ceramic piece, an electrode piece and an insulation block. According to the scheme, the sensitive elements of the acceleration sensor and the pressure sensor core are arranged in a polygonal mode to form a spatial three-dimensional structure, the effective area of the sensitive elements in unit volume is increased, the multiple sensitive elements act together to form superposition of pressure signals, the detection precision and sensitivity of the two are guaranteed, and the detection precision is improved. Therefore, the overall size of the composite sensor is greatly reduced on the premise that the original precision is maintained, and the composite sensor is miniaturized.

A transistor that has a capacitance that varies in response to pressure includes a gel coupled to a gate thereof. The gel comprises a eutectic mixture having ionic conductivity.

The specification relates to a wash-off label (100, 200) comprising a face (101, 301) and a pressure sensitive adhesive (102, 302) adjoined to the face, wherein the face (101, 301) comprises corona discharged filmic material and the pressure sensitive adhesive (102, 302) has a composition including at least one acrylic polymer comprising acrylic monomer(s) and / or non-acrylic comonomer(s) having a carbonyl group capable of undergoing a crosslinking reaction, amount of the acrylic monomer(s) and / or non-acrylic comonomer(s) having a carbonyl group capable of undergoing a crosslinking reaction being from 0.1 to 5 wt. % of monomer composition, and a crosslinking agent with dihydrazide functionality, amount of the crosslinking agent being from 20 to 150% with respect to the amount of the carbonyl groups capable of undergoing a crosslinking reaction. The wash-off label (100, 200) is detachable from a surface when exposed to an alkaline washing solution at a temperature of 85 degrees C. the detachability being such that the pressure sensitive adhesive (102, 302) remains attached to the face (101, 301). Further, the specification relates to a labelled item and use of the wash-off label for labelling an item. Still further, the specification relates to a label laminate web and a method of manufacturing the wash-off label as well as to a pressure sensitive adhesive composition for a wash-off label.

The invention discloses a vacuum microcavity interferometer chip, a manufacturing method and a low-drift optical pressure sensor, a film island structure is formed on the upper surface of a first substrate, and the film island structure comprises a protruding part and a pressure sensitive film surrounding the protruding part; a first side wall part, a getter cavity, a second side wall part and an F-P interference cavity located in the center are sequentially arranged on the lower surface of the first substrate in the radial direction, a first reflecting surface is deposited on the lower surface of the first substrate in the F-P interference cavity, and a second reflecting surface is deposited on the upper surface of the second substrate in the F-P interference cavity. A first optical antireflection film is deposited on the surface of the protruding part, and the first optical antireflection film, the protruding part, the pressure sensitive film, the first reflecting surface and the second reflecting surface have the same center; the filter further comprises a vent hole, and the vent hole is formed in the second side wall part and used for communicating the getter cavity and the F-P interference cavity.

Provided are: a window material and a light-transparent roof material which can autonomously change white turbidity in accordance with the temperature, and which have a simple structure and are easy to manufacture; and a vehicle, a ship, or an airplane, and a building comprising the window material and / or the light-transparent roof material. A window material or a light-transparent roof material according to the present invention comprises at least one light-transparent base material layer and at least one pressure-sensitive adhesive layer. The pressure-sensitive adhesive layer is formed from a pressure-sensitive adhesive composition containing, with respect to 100 parts by mass of a pressure-sensitive adhesive agent, 1-20 parts by mass of a thermosensitive noncrosslinked polymer and 1-100 parts by mass of thermosensitive crosslinked fine particles. The refractive index of the thermosensitive crosslinked fine particles is reduced as the temperature increases, and the reduction rate of the refractive index is larger in the vicinity of the melting temperature of the thermosensitive crosslinked fine particles than in a temperature range other than the vicinity of the melting point. The adhesive power of the pressure-sensitive adhesive composition is reduced as the temperature increases, and the reduction rate of the adhesive power is larger in the vicinity of the melting temperature of the thermosensitive non-crosslinked polymer than in the temperature range other than the vicinity of the melting point.

A resistive flexible pressure sensing array only with a single pair of electrodes and a preparation method thereof belong to the technical field of sensors, the resistive flexible pressure sensing array comprises a flexible sensing layer and a flexible electrode layer, the flexible sensing layer and the flexible electrode layer form an integral structure in a superposition combination mode, and the two layers are respectively connected with a positive electrode and a negative electrode of a power supply through electrode leads. The flexible sensing layer is formed by alternately connecting a substrate, and a pressure sensitive module and a connecting resistor module which are laid on the substrate in series; the flexible electrode layer is composed of a substrate and an electrode module laid on the substrate. On the basis of an up-down series circuit which is formed after an array is pressed and is connected by a single pair of electrode leads, the resistance value range of connected resistors in the circuit is changed through the difference of the number of connected resistor modules in the circuit, and the purpose of identifying the pressure sensing position is achieved; the purpose of detecting the pressure is achieved through the resistance change condition when the pressure sensitive module is subjected to pressure. The invention has the advantages of simple preparation process, high sensitivity and strong stability, and can be applied to intelligent wearable equipment, electronic skin and other pressure sensing equipment.

The invention relates to the technical field of MEMS microsensors, and discloses a resonant pressure sensor and a preparation method thereof, the resonant pressure sensor comprises a substrate layer and a resonant assembly, the substrate layer comprises a support substrate and a pressure sensitive film; the supporting substrate is located at the side part of the pressure sensitive film; the resonance assembly comprises a first resonance beam and a second resonance beam which are arranged in parallel, two ends of the first resonance beam are connected with the pressure sensitive film through a first anchor area and a second anchor area, and two ends of the second resonance beam are connected with the pressure sensitive film through a third anchor area and a fourth anchor area; the first resonant beam and the second resonant beam are coupled and connected together through the mass block and the spring; the resonance assembly further comprises a first driving electrode unit and a second driving electrode unit. The first driving electrode unit is positioned on one side of the first resonant beam; the second driving electrode unit is located on one side of the second resonant beam. Compared with the prior art, the detection sensitivity, precision and reliability of the sensor can be improved, the Q value is improved, and the measuring range of the sensor is increased.

A linerless wash-off label (100) comprising a paper-based face (101, 201) and pressure sensitive adhesive (102) is provided. The paper-based face (101, 201) comprises a base paper (206) and a release layer (203), and the release layer (203) and the pressure sensitive adhesive (102) are arranged on opposite sides of the base paper (206). The pressure sensitive adhesive (102) comprises a water-based acrylic emulsion polymer composition, the pressure sensitive adhesive (102) is sensitive to washing conditions, and the base paper (206) comprises wet strength resin and has water absorptiveness of from 10 to 30 g / m2 when measured according to an ISO standard 535 (contact time 60 s). Further, a label product roll comprising the linerless wash-off labels (100) as well as a labelled item comprising an item and a linerless wash-off (100) label are provided. Still further, use of the linerless wash-off label (100) and method of manufacturing a linerless wash-off label web for providing the linerless label product roll are provided.

The invention discloses an electrochemical pressure sensor based on polyelectrolyte gel and a preparation method thereof, and belongs to the technical field of pressure-sensitive elements and pressure sensors. The electrochemical pressure sensor comprises a polyelectrolyte gel pressure sensitive layer, a positive electrode and a negative electrode, wherein the surface of the polyelectrolyte gel pressure sensitive layer is provided with a bowl-shaped groove array structure; the positive electrode is positioned on the upper surface of the pressure sensitive layer; the negative electrode is positioned on the lower surface of the pressure sensitive layer; the polyelectrolyte gel pressure sensitive layer comprises PVA, LiCl and PSS. The surface bowl-shaped groove array structure prepared by using the nucleation effect has excellent pressure-sensitive performance: on one hand, the sensitivity of contact between polyelectrolyte gel and an electrode to pressure is improved, so that the sensor realizes excellent pressure response characteristic; and on the other hand, the surface microstructure gel electrolyte preparation method with less damage to the mold and wider applicability is realized. The electrochemical pressure sensor provided by the invention has the characteristics of high response rate and high output power, and has important value for development of high-performance self-energized pressure sensors.

The invention provides a force and acceleration composite sensor with a calibration function and a working method, and belongs to the field of composite sensors, the force and acceleration composite sensor with the calibration function comprises a test base, the test base is provided with a test through hole, and the test through hole is provided with a mounting hole; a pressure sensitive diaphragm II and a pressure monitoring core body are mounted in the mounting hole; an impact head limiting and fixing upper base is mounted on the test base, an impact head is mounted in a sliding through hole of the impact head limiting and fixing upper base, a first pressure sensitive diaphragm is arranged at the lower end of the impact head, and an acceleration monitoring core body is mounted at the lower end of the first pressure sensitive diaphragm; a third pressure sensitive diaphragm is installed at the bottom of the test through hole, a calibration base is arranged at the lower end of the test base, a calibration groove is formed in the calibration base, and a standard pressure sensor and a tested pressure sensor can be installed on the side wall of the calibration groove. The device has the beneficial effects that the device has multiple advantages of synchronous monitoring of force and acceleration, flexible impact resistance and integrated calibration.

The invention relates to a vacuum microcavity interferometer chip, a manufacturing method and a wide-range optical pressure sensor. Comprising a first substrate and a second substrate, the second substrate and the first substrate are bonded into a whole, a pressure sensitive film is manufactured on the first substrate, a first reflecting surface is deposited on the pressure sensitive film, and a second reflecting surface corresponding to the first reflecting surface is deposited on the second substrate. After the two substrates are bonded, the first reflecting surface and the second reflecting surface form an F-P optical interference cavity, at least one getter cavity is arranged on the first substrate and / or the second substrate, a getter film is arranged on the surface of the getter cavity, and the getter cavity and the F-P optical interference cavity are separated and connected through an air channel, so that the size of the air channel can be made to be very small, and the size of the getter cavity is smaller than that of the F-P optical interference cavity. A small amount of particles generated after the getter is activated are prevented from polluting an optical film to cause device failure; the whole sensor is of a sealed structure and is not provided with a structure externally connected with the chip, so that the overall airtightness of the chip is ensured, and the vacuum degree requirement of subsequent shell packaging is reduced.

The invention is about a sensor assembly comprising, on an active part (621, 622), an assembly of conductive nanoparticles (560) in an insulating ligand, a substrate on which conductive tracks (611, 612, 613, 650, 651) and the assembly of nanoparticles are deposited, a thin stiffener (630) extending under the active part, glued to the substrate by a hardening glue on a first face of the thin stiffener and a pressure-sensitive adhesive attached to a second face of the thin stiffener (630), opposite the first face, configured for bonding the miniature sensor to a surface to be functionalized. The invention also relates to a method for manufacturing of such a sensor assembly.

To provide a pressure sensitive adhesive sheet including thermo-expandable microspheres capable of exhibiting a releasing property by heating, the pressure sensitive adhesive sheet preventing changes in thickness and in surface roughness even under a high temperature when no separation is required.SOLUTION: A pressure sensitive adhesive sheet includes a substrate, a resin layer and a first adhesive layer in this order. The first adhesive layer includes thermo-expandable microspheres. The pressure sensitive adhesive sheet satisfies a relation Tf≥Tgas-10 by a thickness deformation initiation temperature Tf(°C) by a TMA analysis and a gasification initiation temperature Tgas(°C) by an EGA / MS analysis of the thermo-expandable microspheres.SELECTED DRAWING: Figure 1

The invention provides a piezoelectric resonant sensor and a preparation method thereof, and relates to the technical field of sensors and sensor manufacturing. The piezoelectric resonant sensor comprises a substrate and a piezoelectric component. Wherein the substrate is provided with a first side and a second side which are opposite to each other, and an input cavity is formed in the second side; the piezoelectric assembly is connected to the first side of the substrate, one side, facing the substrate, of part of the piezoelectric assembly protrudes in the direction away from the substrate and is matched with the substrate to form a resonant cavity, and the resonant cavity is at least partially opposite to the input cavity. A pressure sensitive film is formed on the part, opposite to the input cavity, of the substrate, and the input cavity is used for receiving to-be-detected pressure and transmitting the to-be-detected pressure to the pressure sensitive film, so that the pressure sensitive film drives the piezoelectric assembly to deform through the cavity wall of the resonant cavity. Therefore, a resonant cavity is naturally formed between the piezoelectric component and the substrate, and an additional middle layer can be avoided, so that the size of the piezoelectric resonant sensor can be reduced, the cost is reduced, and large-scale production is facilitated.

A pressure sensitive sensor includes: a first substrate; a resistor disposed on the first substrate; a first wiring pattern disposed on the first substrate and connected to the resistor; first comb tooth patterns disposed on the first substrate and connected to the resistor; a pusher includes a pushing part and a connecting body electrically connected to the first comb tooth patterns by pushing of the pushing part; and a second wiring pattern disposed on the first substrate and electrically connected to the connecting body by pushing of the pushing part. A material of the resistor has an electrical resistivity higher than electrical resistivities of materials of the first wiring pattern, the first comb tooth patterns, the connecting body, and the second wiring pattern. The resistor does not overlap the connecting body in a plan view.

The present invention provides a reflection film which has excellent curved surface followability during bonding to an object to be bonded, exhibits excellent abrasion resistance after bonding, and further has excellent reflection characteristics; a windshield glass; a laminate; and an image display system. The reflection film of the present invention includes, in the following order, a pressure-sensitive adhesive layer, a reflective layer reflecting light in a wavelength-selective manner, and a hardcoat layer.

The invention relates to a vapor barrier which is self-adhesive on both sides, comprising at least one moisture barrier layer, a carrier film, a first pressure-sensitive adhesive layer which is resistant to moisture, a second pressure-sensitive adhesive layer which is present on a side of the carrier film opposite the first pressure-sensitive adhesive layer, and a removable covering layer which has been applied to the second pressure-sensitive adhesive layer on a side of the self-adhesive vapor barrier facing the surroundings opposite the carrier film.

The invention discloses a flexible pressure-temperature dual-mode sensor, which comprises a pressure sensitive layer, a temperature sensitive layer and a PET substrate, and is characterized in that the two surfaces of the PET substrate are printed with interdigital electrodes, and the two interdigital electrodes are connected through a copper foil; the pressure sensitive layer covers one of the interdigital electrodes to form a pressure sensing circuit, and the temperature sensitive layer covers the other interdigital electrode to form a temperature sensing circuit. According to the invention, the pressure sensitive layer and the temperature sensitive layer are combined together through mutual cooperation of the PET substrate and the interdigital electrode to form a temperature sensing circuit and a pressure sensing circuit, so that simultaneous measurement of temperature and pressure is realized.

The invention discloses a miniaturized superhigh-temperature water-cooled high-temperature pressure sensor, which belongs to the technical field of pressure sensors and comprises a lead column, a shell, a conduction beam, a ceramic circuit board and a pressure-sensitive unit, and the conduction beam, the ceramic circuit board and the pressure-sensitive unit are arranged in the shell. The shell comprises a pressure sensing metal diaphragm, a threaded base, a protective sleeve and a packaging bottom cover which are fixedly connected in sequence; the pressure sensitive beam comprises a conduction beam base, the two sides of the conduction beam base are fixedly connected with a supporting beam base through beam island structures, pressure sensitive units are arranged on the beam island structures, and a supporting beam is fixedly connected with a threaded base. The pressure sensing metal diaphragm is fixedly connected with the conduction beam base through the conduction beam; the voltage-sensitive unit is electrically connected with the ceramic circuit board; the lead columns penetrate through the packaging bottom cover and the ceramic circuit board and are fixedly connected with the ceramic circuit board. The temperature tolerance of the pressure sensor is improved, and the defects that a high-temperature pressure sensor is poor in anti-interference capacity, low in response frequency, low in measurement sensitivity and the like are overcome.

Provided is an optical laminate with excellent durability and an image display device formed of the optical laminate. The optical laminate includes a pressure sensitive adhesive layer 1, a specific laminate including a resin layer and a light absorption anisotropic layer which are adjacent to each other, and a pressure sensitive adhesive layer 2 in order, in which the light absorption anisotropic layer contains a dichroic substance, the pressure sensitive adhesive layer 1 is adjacent to the resin layer of the specific laminate, and a storage elastic modulus Ep of the pressure sensitive adhesive layer 1 and a storage elastic modulus Ea and a moist heat strain δa of the resin layer satisfy Expression (1-1) ¼ (3×Ep / Ea)2 / 3>δa.

The invention discloses a high-temperature-resistant high-stripping organic silicon pressure-sensitive adhesive and a preparation method thereof, and relates to a pressure-sensitive adhesive and a preparation method thereof. The invention aims to solve the problems of insufficient temperature resistance, low peel strength and poor binding force with a base material of the existing organic silicon pressure-sensitive adhesive. According to the invention, phenyl siloxane rubber, hydroxyl-terminated polysiloxane and methyl vinyl MQ silicon resin are used as basic raw materials, and polysilazane is used as a heat-resistant modifier to carry out heat-resistant modification on the chemical structure of the pressure-sensitive adhesive; a trifunctional allyl silane monomer is added in the film preparation process, so that the crosslinking density of the system is improved, and the heat resistance of the pressure-sensitive adhesive is further improved; the bonding force between the pressure-sensitive adhesive and a polyimide substrate is improved by adding the peroxysilane coupling agent, and the use of a primer in the coating process is omitted; by adding the hydroxyl MQ silicon resin and the phosphate adhesion promoter, the bonding strength of the pressure-sensitive adhesive is improved, and the high-temperature-resistant and high-stripping organic silicon pressure-sensitive adhesive is prepared. According to the invention, the high-temperature-resistant and high-stripping organic silicon pressure-sensitive adhesive can be obtained.

An adhesive tape and methods of use in cold or hot environments, such as in the construction industry, wherein the adhesive tape includes a pressure sensitive adhesive layer (preferably, an acrylic pressure sensitive adhesive layer) disposed on a backing (preferably, a multilayer backing).

Water-based pressure sensitive adhesive compositions are disclosed comprising (a) an acrylic emulsion having a glass transition temperature of less than or equal to 20° C., (b) optionally, a dispersant or a silane-containing compound, and (c) an ethylene or propylene copolymer emulsion. In some embodiments, (a) comprises from 75 to 99 wt % of the compositions, (b), when present, comprises from 0.1 to 5 wt % of the compositions, and (c) comprises from 0.1 to 25 wt % of the composition, each based on the dry weight of the compositions. Methods for preparing water-based pressure sensitive adhesive compositions are also disclosed comprising emulsion polymerizing at least one unsaturated monomer, thereby forming an emulsion polymer having a glass transition temperature of less than or equal to −10° C. and blending the emulsion polymer together with a dispersant or silane-containing compound and an ethylene or propylene copolymer emulsion. Water-based pressure sensitive adhesives and pressure sensitive adhesive films are also disclosed.

A force sensing device comprises a sensing array comprising a first conductive layer having a plurality of conductive rows and a second conductive layer having a plurality of conductive columns. The plurality of conductive rows and plurality of conductive columns are arranged to define a plurality of intersections. The force sensing device also comprises an electro-active layer overlaying the first conductive layer and comprising a pressure sensitive element at each intersection. A force concentrating structure is positioned at each intersection on the second conductive layer.

The invention discloses a birotor surface pressure measurement system and method based on double endoscopic pressure sensitive paint, and belongs to the technical field of turbomachinery pressure measurement. The method mainly comprises a double-endoscopic type optical pressure sensitive measuring system, a double-rotor phase locking system of a photoelectric sensor and an encoder and a double-endoscopic type rotor surface pressure synchronous measuring method, excitation and imaging of PSP are integrated in the same hard rod type endoscope, an optical straight rod endoscope with a 70-degree viewing angle is adopted, the visual field angle is 90 degrees, and the optical straight rod endoscope and the optical straight rod endoscope are integrated. And the endoscope rod extends into the flow field for a certain length, so that the acquisition of a global rotor blade image is realized. An endoscopic detection hole is formed, an optical endoscope is installed on the wall face of a cartridge receiver, a camera and the endoscope are fixed through a three-dimensional displacement mechanism, and the stability of an endoscopic measurement system is guaranteed. The reflective patch is attached to a rotor rotating shaft, the photoelectric sensor directly faces the reflective patch, external trigger signals of the photoelectric sensor are transmitted to the signal generator and the multi-channel data acquisition system respectively, and the signals are used for controlling light emitting of the light source and shooting of the camera on one hand and used for phase locking of the rotor on the other hand. And the encoder is arranged at one end of the motor shaft, is connected with the multi-channel data acquisition system, and is combined with the photoelectric sensor to jointly realize phase locking of the double rotors. Dark background images Id1 and Id2 and reference images Ir1 and Ir2 of the birotor are shot, and the corresponding reference pressures are Pr1 and Pr2 respectively. A phase-locked enhanced image synchronous acquisition method is adopted to obtain light-emitting images I1 and I2 of the surface of the rotor. And finally obtaining pressure distribution P1 and P2 of the surfaces of the double-rotor blades through image processing and a pressure sensitive coating calibration relational expression.

A manometric catheter probe includes a flexible printed circuit, one or more pressure sensor assemblies coupled to the flexible printed circuit along a length of the flexible printed circuit, and a first flexible sleeve. Each pressure sensor assembly includes a body. The body includes a central cavity configured to receive the flexible printed circuit and an annular recess of the body. Each pressure sensor assembly further includes a microelectromechanical systems (MEMS) sensor disposed in the annular recess, an electrical connector configured to electrically couple the MEMS sensor and the flexible printed circuit, and a first flexible sleeve disposed over the annular recess of the body. The first flexible sleeve includes a fluid configured to communicate pressure to the MEMS sensor, and a second sleeve is disposed over the pressure sensor assembly.

Laminates designed and equipped to be separated after long-term bonding are provided. The laminates comprise a first pressure sensitive adhesive layer, a separation layer, and a second pressure sensitive adhesive layer. The separation layer comprises a laser-sensitive pigment which at the same time is coloring, and so preferably a black coloration is produced, and consists of a cured coating material, preferably an electron beam-cured or UV-cured coating material, which is at least partly removable by laser irradiation, wherein the first pressure sensitive adhesive layer and / or the second pressure sensitive adhesive layer are laser beam-translucent.

The invention provides an adhesive tape and a double-glass structure product. The adhesive tape comprises a release film layer, a pressure-sensitive adhesive layer and a base material layer which are sequentially stacked, the pressure-sensitive adhesive layer comprises a flaky magnetic filler; the flaky magnetic filler comprises a first-direction flaky magnetic filler and a second-direction flaky magnetic filler, an acute angle between the normal direction of the first-direction flaky magnetic filler and the winding axis direction of the adhesive tape is 0-45 degrees, and the first-direction flaky magnetic filler accounts for 50-100% of the weight of the flaky magnetic filler. By adding the flaky magnetic filler into the pressure-sensitive adhesive layer and adjusting the orientation of the flaky magnetic filler in the pressure-sensitive adhesive layer, the transverse and longitudinal water resistance of the adhesive tape is remarkably improved, the weather resistance and bonding strength of the adhesive tape are considered, and when the adhesive tape is applied to objects with water resistance requirements on edges or adhesive tape bonding parts, such as photovoltaic modules, laminated glass and the like, the adhesive tape has excellent water resistance. Effective protection can be provided, and the service life of assemblies is effectively prolonged.

A pressure sensitive adhesive sheet includes a pressure sensitive adhesive layer catching elements distant from a holding substrate. The pressure sensitive adhesive layer has unevenness on a surface and having a complex shear elastic modulus at 23° C. of 0.001 MPa or greater and 1.0 MPa or less.