34results about How to "Increase the amount of capacitance change" patented technology

The invention discloses a five-port micromachine cantilever-based capacitance type microwave power sensor. The input ends of five coplanar waveguides (CPWs) for transmitting microwave signals are arranged on a gallium arsenide substrate, the CPWs are symmetrically arranged, and a 72-degree angle is formed between every two CPWs; the output end of each CPW is connected with two terminal matched resistors; each terminal resistor is provided with a thermocouple nearby; the five thermocouples are arranged at the inclined angle of 72 degrees and are connected in series with one another to form a thermopile; simultaneously, each CPW is bridged with a micro-electromechanical system (MEMS) cantilever; one end of each cantilever is positioned in a free state, and the other end of the cantilever isfixed in an anchor area; the anchor area is positioned on the outer side of a CPW ground wire; and a sensing electrode is arranged between a CPW signal wire and the ground wire. The sensor has low loss, high sensitivity and high linearity; the microwave power of five ports can be measured; simultaneously, ports into which the microwave power is input and the magnitude proportion of the power can be detected; and the sensor has the advantages of high integration level and compatibility with a gallium arsenide monolithic microwave integrated circuit.

The invention provides a high-precision capacitance film vacuum gauge, and the vacuum gauge comprises: a housing which is provided with an accommodation cavity; two sensing diaphragms which are arranged in the accommodating cavity in parallel and divide the accommodating cavity into a reference vacuum chamber and two to-be-tested chambers, wherein the two to-be-tested chambers are located on the two sides of the reference vacuum chamber respectively, and the two to-be-tested chambers are communicated with each other and are isolated from the reference vacuum chamber; a connecting pipe which is communicated with one of the to-be-tested chambers; and a fixed substrate which is arranged in the reference vacuum chamber and is parallel to the two sensing diaphragms. Conductive films are arranged on the two sides of the fixed substrate respectively, and the conductive films on the two sides of the fixed substrate and the adjacent sensing diaphragms form capacitors respectively; and the capacitance film vacuum gauge is high in measurement precision and sensitivity.

The invention discloses a touch screen and an elevator control box using the touch screen, belonging to the field of elevators. The touch screen is an organic capacitive touch screen, which sequentially includes a protective glass layer, a polarizing plate, an upper glass, an electrode layer, an optical filter, and a liquid crystal from outside to inside. Layer, thin film field effect transistor layer, lower glass, the thin film field effect transistor layer is a tungsten-doped indium oxide thin film transistor, which includes gate electrode, PVP gate electrode dielectric layer, Al source and drain electrodes, tungsten-doped indium oxide semiconductor thin films and glass substrates. The beneficial effect of the present invention is that: the thin film field effect transistor layer adopts tungsten-doped indium oxide thin film transistor, and utilizes its high touch sensitivity and stability to improve the use effect of the touch screen. Intelligent and other characteristics.

The invention provides a touch panel and an electrode configuration method thereof. The touch panel comprises multiple touch patterns which are arranged in an array manner, wherein each touch pattern comprises a first transmitting electrode, a second transmitting electrode and multiple receiving electrodes, the second transmitting electrode is parallel to the first transmitting electrode, the receiving electrodes are configured between the first transmitting electrode and the second transmitting electrode and are adjacent to the first transmitting electrode and the second transmitting electrode respectively; the first transmitting electrodes, the second transmitting electrodes and the receiving electrodes are not overlapped, the first transmitting electrodes of the touch patterns are not connected, and the second transmitting electrodes of the touch patterns are not connected.

An embodiment of the invention discloses a touch display panel. The touch display panel comprises a supporting structure, a first electrode, a second electrode and a third electrode, wherein the supporting structure is located on one side, facing to a first substrate, of a second substrate; the supporting structure includes a first supporting structure and a second supporting structure; the first electrode covers the first supporting structure and the second supporting structure and is located on one side, facing to the first substrate, of the second substrate; the second electrode and the third electrode are located on one side, facing to the second substrate, of the first substrate; orthographic projection, on the first substrate, of the second electrode and orthographic projection, on the first substrate, of the third electrode have a first overlapping area; in the first overlapping area, the second electrode and the third electrode are insulated from each other through a first insulation layer; and the distance between the first electrode located on one side, close to the first substrate, of the first supporting structure and the second electrode is not equal to the distance between the first electrode located on one side, close to the first substrate, of the second supporting structure and the third electrode. Therefore, the pressure detection sensitivity of the touch display panel is improved.

The invention discloses an organic capacitive touch screen which comprises a protective glass layer, a polarizer, upper glass, an electrode layer, an optical filter, a liquid crystal layer, a TFT (thin film field effect transistor) layer and lower glass, wherein the material of the electrode layer is a copper-doped prepolymer containing a cagelike-structure compound.

The invention discloses a five-port micromachine cantilever-based capacitance type microwave power sensor. The input ends of five coplanar waveguides (CPWs) for transmitting microwave signals are arranged on a gallium arsenide substrate, the CPWs are symmetrically arranged, and a 72-degree angle is formed between every two CPWs; the output end of each CPW is connected with two terminal matched resistors; each terminal resistor is provided with a thermocouple nearby; the five thermocouples are arranged at the inclined angle of 72 degrees and are connected in series with one another to form a thermopile; simultaneously, each CPW is bridged with a micro-electromechanical system (MEMS) cantilever; one end of each cantilever is positioned in a free state, and the other end of the cantilever isfixed in an anchor area; the anchor area is positioned on the outer side of a CPW ground wire; and a sensing electrode is arranged between a CPW signal wire and the ground wire. The sensor has low loss, high sensitivity and high linearity; the microwave power of five ports can be measured; simultaneously, ports into which the microwave power is input and the magnitude proportion of the power can be detected; and the sensor has the advantages of high integration level and compatibility with a gallium arsenide monolithic microwave integrated circuit.

The invention provides a touch panel and an electrode configuration method thereof. The touch panel comprises multiple touch patterns which are arranged in an array manner, wherein each touch pattern comprises a first transmitting electrode, a second transmitting electrode and multiple receiving electrodes, the second transmitting electrode is parallel to the first transmitting electrode, the receiving electrodes are configured between the first transmitting electrode and the second transmitting electrode and are adjacent to the first transmitting electrode and the second transmitting electrode respectively; the first transmitting electrodes, the second transmitting electrodes and the receiving electrodes are not overlapped, the first transmitting electrodes of the touch patterns are not connected, and the second transmitting electrodes of the touch patterns are not connected.

The invention discloses a capacitive micro machinery gyroscope, belonging to the technical field of a micro electrical mechanical system. A gyroscope mass block 15 is connected with the center of a lever 12; two pivot points are symmetrically distributed between the center and two end points of the lever 12, and the distance h0 from the pivot points to the center of the lever is less than the distance h1 from the pivot point to the end points of the lever; simultaneously two end points of the lever 12 are respectively and sequentially connected with a sensitive transmission beam 8 in Y direction and two sensitive bent beams 9 in X direction; the other end of each sensitive bent beam 9 of two is respectively connected with two end points of a non-deformed beam 16; a moving comb tooth and astatic comb tooth fixed on the non-deformed beam 16 form a sensitive detection comb tooth pair 10 to complete the capacitance detection at the sensitive direction. According to the invention, the displacement detection and the lever amplification technology in the traditional micro machinery gyroscope are combined, the displacement amplification effect of the mass block at the Y direction by the lever is h1 / h0, thus the variation of the detection capacitance is increased, and the flexibility of the micro machinery gyroscope is improved.

The invention discloses a capacitance-type touch control detection circuit for detecting the change in a detected capacitance, which comprises a constant voltage source, a first switch, a first control circuit, a compensating module and an amplifying module, wherein the constant voltage source is used for charging a detected capacitor; the first switch is used for controlling the charging time of the detected capacitor, and the constant-voltage source, the first switch and the detected capacitor are connected in series; the first control circuit is used for controlling the on and off time of the first switch; the compensating module is used for reducing the electric quantity of the detected capacitor to a preset value; and the amplifying module is used for amplifying the voltage of the detected capacitor with reduced electric quantity. The invention also provides a detection device and a detection method. According to the invention, after the compensating module reduces the electric quantity of the detected capacitor to the preset value, the amplifying module amplifies the voltage; the reduction in the electric quantity of the detected capacitor reduces the voltage of the detected capacitor, so that the capacitance change in the detected capacitor is higher than the capacity change under a condition that the compensating module is not available; and the sensitivity of the detection circuit is increased.

A display panel is disclosed. The display panel can include: a first substrate; a second substrate, arranged opposite to the first substrate; a first pressure-sensitive detection electrode, arranged on the first substrate and positioned proximal to one side of the second substrate; a second pressure-sensitive detection electrode, arranged on the second substrate and positioned proximal to one side of the first substrate, and a third pressure-sensitive detection element, positioned at one side of the first substrate distant from the second substrate and arranged at intervals from the first substrate. A first capacitance is formed between the second pressure-sensitive detection electrode and the first pressure-sensitive detection electrode. A second capacitance is formed between the third pressure-sensitive detection element and the first pressure-sensitive detection electrode. When the display panel is pressed, a magnitude of pressure is determined by detecting a variation of the first capacitance and a variation of the second capacitance.

The invention provides a method for manufacturing an organic capacitive touch screen. The method comprises the steps that a TFT layer is formed on lower glass, a liquid crystal layer is formed on the TFT layer, an optical filter is formed on the liquid crystal layer, a second electrode layer is formed on the optical filter, an insulating layer is formed on the second electrode layer, a first electrode layer is formed on the insulating layer, upper glass is formed on the first electrode layer, and a polarizer and a protective glass layer are formed on the upper glass. The first electrode layer and the second electrode layer are respectively made of a copper-doped prepolymer containing a cagelike structure compound.

The invention provides a curvature sensor based on an origami structure, the curvature sensor includes a flexible substrate (1), a metal pole plate (2), a first anchoring area of ​​a fixed beam (31), a second anchoring area of ​​a fixed beam (32 ), a double-end fixed support beam (4) with a folded film structure, the first folded film structure (52), the second folded film structure (53), the third folded film structure (51), the fourth folded film structure (54 ), planar inductance (6); when the flexible substrate is attached to a surface with a concave curvature, the structure uses a folded film structure based on the origami principle, so that the double-end fixed beam is folded to form a downward protruding The three-dimensional structure increases the capacitance change between the double-end fixed beam and the metal plate, so the curvature sensor has the advantages of high sensitivity, small measurement error, process compatibility, and novel structure.

The invention discloses a non-contact static detection device, which comprises a static sensor, an electronic switch and an electric signal processing unit, wherein the static sensor comprises a sensing electrode and a coupling electrode; the sensing electrode is a metal static signal receiving surface; the coupling electrode is a metal electrode; the sensing electrode and the coupling electrode construct a capacitor of fixed capacitance; the sensing electrode is electrically connected with the electronic switch; and the electric signal processing unit is used for grounding or suspending the sensing electrode alternatively by controlling the electronic switch, and is also used for performing subsequent processing on an alternating signal acquired from the coupling electrode to convert the processed alternating signal into an electric field value. The non-contact static detection device has the characteristics of no mechanical part, high coupling capacitance variation quantity, high sensitivity, flexible sensor design and easiness in realizing; and by selecting the static sensor, static electricity or weak static electricity in tiny regions can be measured in real time and absolutely.

The present application proposes a touch substrate and a touch screen. The touch substrate includes a touch layer; the touch layer includes a first electrode and a second electrode. The first electrode includes a first bump and a first dummy electrode; the second electrode includes a second bump and a second dummy electrode. There is at least one sub-pixel space between two adjacent first protrusions or the second protrusions, and at least one sub-pixel space between the first dummy electrode and the second protrusions, the The second dummy electrode is at least one sub-pixel apart from the first protrusion. This application increases the mutual capacitance value between the first electrode and the second electrode by increasing the proportion of the dummy electrode to the corresponding electrode and the relative side length between the first electrode and the second electrode, and improves the It improves the capacitance variation of the multi-finger coaxial product under the floating touch, and enhances the touch sensitivity of the touch substrate.