Abstract: A security element for an object surface separated by a vertical distance, in particular an object height, from a floor area, includes a longitudinally extending flat support body including a first and second flat side. The first flat side is designed to be placed on the object surface. A presence detector and an evaluation unit are mounted on the second flat side, and the support body is made of a flexible material. The presence detector includes a detection region spatially extending around the presence detector away from the first flat side. The detection region is formed by a near-field region, and the evaluation unit includes an electrical energy storage device. The presence detector forms a measuring unit including an electrical characteristic variable. The presence detector also includes at least two electrically conductive electrodes, the electrodes being formed substantially along the entire longitudinal extent of the support body.

Abstract: A low-latency touch sensitive device provides a method for determining a location of a touch event thereon. The touch sensitive device row conductors and column conductors, the path of each of the row conductors crossing the path of each of the column conductors. Each of a set of orthogonal row signals are simultaneously transmitted on a respective one of at least some of the row conductors and an amount of each of the plurality of orthogonal row signals present on each of the plurality of column conductors is detected. A set of orthogonal column signals are simultaneously transmitted on a respective one of at least some of the column conductors. An amount of each of the orthogonal column signals present on each of the plurality of row conductors is detected. The detected amount of each of the plurality of orthogonal row signals and the detected amount of each of the plurality of orthogonal column signals is used to determine the location of a touch event on the device.

Abstract: A sensing system includes a sensor and one or more processors. The sensor includes a sensing region in contact with an industrial fluid. The sensing region includes electrodes and a sensing region circuit electrically connected to the electrodes. The sensing region circuit generates an electrical stimulus having multiple different frequencies that are applied to the industrial fluid via the electrodes. The one or more processors receive one or more electrical signals from the sensor representative of an impedance response of the sensing region to the electrical stimulus. The one or more processors analyze the impedance response and determine at least one of a contaminant concentration of an external contaminant in the industrial fluid, an acid concentration of acidic components in the industrial fluid, or a base concentration of basic components in the industrial fluid based on the impedance response.

Abstract: A sensor for detecting the level of a medium contained in a container, in particular a tank, comprises: an array of capacitive elements designed to be associated to the container (1), in particular so as to extend according to an axis of detection (X) of the level of the medium (L), the array of capacitive elements comprising a plurality of electrodes (Ji-Jn), in particular on a face of an electrically insulating substrate (20) having a generally elongated shape, the electrodes (Ji-Jn) being spaced apart from one another, in particular along the detection axis (X), and being preferably substantially coplanar with one another; at least one insulation layer (16) for insulating electrically the electrodes (Ji-Jn) with respect to the inside of the container (1); and a controller (24) having a plurality of inputs.

Abstract: A probe is a three-layer substrate having two faces on which paired electrodes are formed at corresponding positions and guard patterns are formed around the electrodes. The guard patterns and all electrodes are driven by a common probe signal to an equal potential, thereby commonly guarding the electrodes. Based on a clamp current of each electrode, a capacitance is found to obtain gap data.

Abstract: A fingerprint identification apparatus having a conductive structure includes an insulated casing, a conductive wire, and a fingerprint identification module. The insulated casing has a first surface with a fingerprint detection region and a second surface. The conductive wire has a first wire segment and a second wire segment. The first wire segment forms on the first surface and contacts with the fingerprint detection region. The second wire segment forms on the second surface and electrically connects to the first wire segment. The fingerprint identification module is disposed on the second surface and electrically connected to the second wire segment. Therefore, the conductive structure for fingerprint identification is provided to increase accuracy and security of the fingerprint identification and reduce manufacturing costs.

Abstract: Dielectric values of cooling asphalt are obtained despite the presence of water on the surface thereof which effects the measured dielectric. The temperature of the surface of the asphalt is measured simultaneous or contemporaneous to a measurement of the dielectric, the former by way of an infrared camera and the latter by way of a ground penetrating radar transceiver, in embodiments of the disclosed technology. The ground penetrating radar moves with a roller on the surface of the asphalt and the camera can also move with and be mounted on the housing or can be separate, such as in a drone flying at a higher altitude than the asphalt and housing. Using a reference measurement for the mix design of the asphalt without water or with varying degrees of water, the changed dielectric due to the presence of water can be corrected to reveal the dielectric of the asphalt alone.

Abstract: The present invention concerns a system for determining if a deterioration occurs in an interface of a semiconductor die of an electric power module, the electric power module further comprising a substrate and at least one electromechanical transductor, the semiconductor die and the at least one electromechanical transductor being placed on or embedded within the substrate, wherein the system comprises: —means for transferring at least one electric signal to the at least one electromechanical transductor, —means for measuring the impedance of the at least one electromechanical transductor, —means for comparing the impedance of the at least one electromechanical transductor to a predetermined value, —means for deciding that the deterioration occurs in the interface of the semiconductor die according to the comparison result.

Abstract: The present invention provides a system and method for velocity vector field calculation at the voxel level of a multi-phase flow system using Electrical Capacitance Volume Tomography sensors.

Abstract: A system and method for activating on a user interface an indicator of a condition of a lubricant in a machine module. The system may comprise a controller and a user interface. The controller may be configured to, for each of a first time window and a second time window: receive a plurality of lubricant characteristics and measured lubricant temperatures, calculate an adjusted lubricant characteristic, and determine a slope based on the plurality of adjusted lubricant characteristics. The controller may further determine a change in slope, and generate a signal to activate the indicator on the user interface based on the change in slope, wherein, if the change in slope exceeds a threshold, the indicator is a lubricant changed indicator.

Abstract: A level sensor for detecting the level of a medium contained in a vessel comprises: an array of capacitive elements designed to be associated with the vessel (1), comprising a plurality of electrodes (J1-Jn), spaced apart from each other along an axis of detection (X), an insulation layer (16) for electrically insulating the electrodes (J1-Jn) with respect to the inside of the vessel (1), a controller (24) having a plurality of inputs. Each capacitive element comprises at least one of a single electrode and a group of electrodes connected in common to each other, the single electrode or the group of electrodes being connected to a respective input of the plurality of inputs. The controller (24) is prearranged for discriminating a value of electrical capacitance associated with each electrode (J1-Jn) to deduce the level of the medium present in the vessel.

Abstract: The electrostatic detection sensor has a first electrode, a second electrode, and a third electrode. A controller connects the first electrode and the second electrode, and applies a first drive voltage thereto to obtain a first intensity. The controller applies a second drive voltage to the first electrode while keeping the second electrode and the third electrode at a ground potential to obtain a second intensity. The controller applies a third drive voltage to the third electrode while grounding the first electrode to the ground potential and keeping the second electrode open to obtain a third intensity. Then, the controller determines whether an object is approaching based on first, second, and third computed values which are computed temporal changes in the first, second, and third intensities, respectively.

Abstract: The present disclosure relates to the technical filed of fingerprint identification, and in particular, relates to a fingerprint identification apparatus and a method for manufacturing the same. The fingerprint identification apparatus includes: a circuit board, a fingerprint sensor, an appearance effect layer, and a covering layer; wherein the fingerprint sensor is arranged on the circuit board, the covering layer is coated over the fingerprint sensor, the appearance effect layer is arranged between the fingerprint sensor and the covering layer, and the appearance effect layer comprises a texture layer and a color layer. In the fingerprint identification apparatus and the method for manufacturing a fingerprint identification apparatus according to the above embodiments of the present disclosure, a texture layer is coated over on the fingerprint sensor or under the cover, and an appearance effect layer is formed by the texture layer and the color layer.

Abstract: Ground detection of a touch sensitive device is disclosed. The device can detect its grounded state so that poor grounding can be selectively compensated for in touch signals outputted by the device. The device can include one or more components to monitor certain conditions of the device. The device can analyze the monitored conditions to determine the grounding condition of the device. The device can apply a function to compensate its touch signal outputs if the device determines that it is poorly grounded. Conversely, the device can omit the function if the device determines that it is well grounded.

Abstract: An elongated apparatus that measures soil water tension is disclosed, having a hydrogel chamber for receiving a plurality of macro-sized hydrogel particles through its open side and a sealed inner wall, the hydrogel held in the hydrogel chamber by a durable, hydrophilic, and porous window secured to the open side of the hydrogel chamber. The window, when the apparatus is received in soil, transmits moisture between the soil and the hydrogel chamber, causing variable pressure within the hydrogel chamber that can be converted to a measurement of soil water tension on the opposite side of the window. This pressure produces various mechanical effects, measurable by various types of sensors within the elongated probe. A method for measuring soil water tension at multiple depths within a soil profile is also disclosed.

Abstract: A gas turbine engine, a method, and a system for detecting oil debris are provided. The gas turbine engine includes an oil debris monitor sensor configured to detects oil debris in an oil flow, and generate a sensor signal based on the detected oil debris, a controller configured to control the oil flow through the oil debris monitor sensor using a plurality of valves, and a signal processor configured to receive the sensor signal from the oil debris monitor and to receive a valve system configuration from the controller, the signal processor further configured to generates a health indicator based on the sensor signal and valve configuration.

Abstract: The present disclosure relates to a fill level measuring device for measuring a fill level of a liquid material in a container, including at least two flexible wire probes that extend into the container, a signal generator, and an end weight for each flexible wire probe. The end-weights are joined together such that they can rotate with respect to each other and/or can move in an axial direction with respect to each other.

Abstract: A sensor device for detecting a number of objects, has a number of electrode configurations forming a sensor surface, each electrode configuration having a number of measurement electrodes and each electrode configuration being associated with at least one transmitter electrode, and an evaluation device coupled to the measurement electrodes and the transmitter electrodes, which is adapted for using a time multiplexing method for applying an alternating signal to one of the transmitter electrodes, and to apply a predetermined constant electrical potential to the remaining transmitter electrodes, and tapping an electrical signal indicating the position of the object relative to the sensor surface at the measurement electrodes associated with the transmitter electrode having the electrical alternating signal applied.

Abstract: Disclosed is a fingerprint detection circuit comprising at least one fingerprint detection unit, a high level signal line, a low level signal line and an output unit, the fingerprint detection unit includes a charging switch, a discharging switch and an input energy storing unit. An output terminal of the charging switch is connected to an input terminal of the discharging switch, a cathode of the photodiode is electrically connected to an input terminal of the charging switch, an output terminal of the discharging switch serves as an output terminal of the fingerprint detection unit, one terminal of the input energy storing unit is electrically connected to the output terminal of the charging switch, the other terminal of the input energy storing unit is electrically connected to the low level signal line, an input terminal of the output unit is electrically connected to the output terminal of the fingerprint detection unit.

Abstract: The present disclosure discloses an ultrasonic fingerprint sensor package. The ultrasonic fingerprint sensor package includes a substrate, a control chip, an ultrasonic probe, and packaging material. The substrate includes a substrate top surface and a plurality of first connection electrodes formed on the substrate top surface. The control chip includes a chip bottom surface and a plurality of second connection electrodes formed on the chip bottom surface. The control chip is connected to the substrate using a flip chip mounting technology. The second connection electrodes are connected to the first connection electrodes. The ultrasonic probe is arranged on the control chip, and configured to emit ultrasonic wave and receive ultrasonic wave reflected by an object. The packaging material covers the substrate and the control chip, and fixes the ultrasonic probe using a molding technology.

Abstract: A sensor element includes a first conductive electrode having a first conductive member electrically coupled thereto; an absorptive dielectric layer comprising a polymer of intrinsic microporosity; and a second conductive electrode having a second conductive member electrically coupled thereto. The second conductive electrode comprises at least one noble metal, has a thickness of from 4 to 10 nanometers and is permeable to at least one organic vapor. The absorptive dielectric layer is at least partially disposed between the first conductive electrode and the second conductive electrode. A method of making the sensor element, and sensor device containing it, are also disclosed.

Abstract: A display device and a method of driving the same are disclosed. The display device includes a display panel including a first display area and a second display area that are adjacent to each other, and a first touch sensor disposed in the first display area, a sensor screen disposed on the display panel and including a fingerprint sensor and a second touch sensor at a location corresponding to the second display area of the display panel, a display touch integrated circuit (IC) configured to drive pixels of the first and second display areas and the first touch sensor, and a fingerprint touch IC configured to drive the fingerprint sensor in a portion of one frame period, in which the first touch sensor is not driven.

Abstract: An electrical capacitance tomography sensor including a sensor having a plurality of electrodes, where each electrode is formed from a plurality of capacitance segments. Each of the capacitance segments of each electrode can be individually addressed to focus the electric field intensity or sensitivity to desired regions of the electrodes and the sensor.

Abstract: A system and method for incorporating occupancy-detecting technology into furniture is provided. More particularly, the invention relates to direct-connect device, system, and method for determining presence with respect to an automated furniture item, such as a recliner mechanism. In some aspects, a sensor is provided based on coupling one or more conductive features to a control component of the capacitance detector control component. A controller may determine the corresponding response based on occupancy detection and/or presence detection. A processor may receive information regarding changes in capacitance and determines when a change in voltage satisfies a threshold. Based on a determination of occupancy and/or presence, a variety of corresponding features of the adjustable recliner may be activated.

Abstract: A vapor sensor comprises a sensor element (110), a cooling member (140), and an operating circuit (160). The sensor element comprises: a first conductive electrode; a second conductive electrode; and a dielectric microporous material at least partially disposed between and contacting the first and second conductive electrodes. The cooling member is in contact with, and configured to cool, the sensor element. The operating circuit is in electrical communication with the first and second conductive electrodes, and is capable of creating a voltage difference between the first and second conductive electrodes such that the sensor element has a capacitance-related property, and monitoring a capacitance-related property of the sensor element. A method of using the vapor sensor to detect an analyte vapor is also disclosed.

Abstract: A contact structure body for use in a measuring device. The contact structure includes a separator that physically separates a sample holder from a measuring circuit, and a contact probe configured to electrically connect an electrode of the sample holder to the measuring circuit, the contact probe comprising. The contact structure body may be part of a system for determining a characteristic of a sample. The system includes a sample holder for holding sample. The sample holder includes an electrode. The system also includes a measuring circuit for measuring at least one property of the sample.

Abstract: Disclosed is a method of detecting the approach and/or contact of a user's hand to a door handle, the handle having a first outer surface oriented toward the vehicle and a second outer surface oriented toward the user, the handle including at least one detection electrode and an additional electrode, positioned face to face in advance. The method includes: the two electrodes are electrically connected to the same power supply source; a first capacitance value is measured at the terminals of the detection electrode; a second capacitance value is measured at the terminals of the additional electrode; and the first and second values are compared, during a measurement period, with one another and/or with a predetermined threshold value, in order to detect the approach of a user's hand toward the first outer surface or toward the second outer surface and/or the contact of his hand with one of these surfaces.

Abstract: Partitioning a circuit design can include determining, using a processor, a target area utilization and a target cut utilization by iterating over a range of timing violations and determining, using the processor, a worst allowed timing violation based upon the target area utilization and the target cut utilization. Circuit elements of the circuit design can be assigned to partitions, using the processor, for implementation of the circuit design in a multi-die integrated circuit based upon a partition cost calculated using the target area utilization, the target cut utilization, and the worst allowed timing violation.

Abstract: A method of correcting charge values acquired from a capacitive fingerprint sensor, comprising acquiring a list of one or more defective capacitive sensor elements and for defective capacitive sensor element in the list, selecting its position as a first position and: performing a first operation by placing a first filter window about the first position and computing a replacement value for the first position from charge values within the first filter window, but forgoing computing a replacement value for the first position in case a first threshold number of defective capacitive sensor elements located within the first filter window is exceeded; in case the first operation forgo computing a replacement value for the first position, performing a second operation by placing a second filter window about the first position and computing a replacement value for the first position from charge values within the second filter window, but forgoing computing a replacement value for the first position in case a seco

Abstract: Apparatus is provided featuring a signal processor or processing module configured at least to: receive signaling containing information about the conductivity of a fluid contained, processed or flowing in a pipe, tank, cell or vessel having electrodes around the circumference of the pipe, tank, cell or vessel in an irregular configuration; and determine a scale build-up in the pipe, tank, cell or vessel using a tomographic processing technique, based at least partly on the signaling received. The signal processor module may be configured to provide corresponding signaling containing information about the scale build-up in the pipe, tank, cell or vessel using the tomographic processing technique, e.g., including where the corresponding signaling contains information about a chemical to be injected to control the scale build-up, including in a closed loop manner.

Abstract: A fingerprint sensor includes a substrate, a sensing electrode over the substrate, a first electrode and a second electrode. The sensing electrode is configured to detect a capacitance in response to a touch event on the fingerprint sensor. The first electrode is disposed between the substrate and the sensing electrode, while the second electrode is disposed between the first electrode and the sensing electrode. The first electrode and the second electrode are configured to define a capacitance therebetween. The sensitivity of the fingerprint sensor is inversely proportional to the capacitance between the first electrode and the second electrode.

Abstract: A dielectric and a dielectric ink include a dielectric material. The dielectric material includes ceramide or a ceramide derivative. A capacitor and a transistor may include the dielectric material. A device may include at least one of a capacitor and a transistor that includes the dielectric material. A dielectric that includes ceramide or a ceramide derivative may be configured to provide dielectric performance in a bio field. The effect on a human body by the dielectric may be reduced, based on the dielectric material of the dielectric including ceramide or a ceramide derivative.

Abstract: A low-profile shear-sensing unit includes a floating plate surrounded by a frame and a displacement sensor that measures in-plane movement of the floating plate. Covered with a surface sample, the floating plate is displaced by the friction drag (i.e., shear) on the surface caused by the flow of fluid and the in-plane displacement is measured by the displacement sensor. The shear force on the sample surface is then obtained by multiplying the measured displacement and the spring constant of the flexure beams, which suspend the floating plate. The floating plate and the flexure beams are formed out of one plate or substrate to achieve monolithic construction with a beam geometry that leads to a high-resolution measurement.

Abstract: A biodegradable soil sensor, a biodegradable soil sensing system and method for obtaining soil information is provided. The biodegradable sensor may include one or more electrically conductive bioinert traces and a biodegradable substrate having a printed circuit of the one or more electrically conductive bioinert traces. A biodegradable antenna may be formed by at least one of the one or more electrically conductive bioinert traces. A sensor may be connected to the one or more electrically conductive bioinert traces. The sensor may also include a biodegradable encapsulation layer housing the biodegradable substrate and the electrically conductive bioinert traces.

Abstract: A security device is provided including a product presence sensor configured to sense a change in product presence relative to the product presence sensor and a directional element configured to direct the product presence sensor in a sensing direction.

Abstract: The invention relates to a method for the contactless detection and recognition of gestures in a three-dimensional movement space (3D gestures), wherein in an electrical near-field which defines the three-dimensional movement space, deformations of the electrical near-field are detected which can be performed by movements of at least one object, e.g. one or two fingers in the three-dimensional movement space, at least one movement path is generated from the detected deformations of the electrical near field, which corresponds to the movement of the at least one object in the three-dimensional movement space, and wherein during the generation of the movement path in the movement path a gesture start is determined, wherein beginning with the gesture start the gesture is extracted from the movement path. The invention also relates to a system for the contactless detection and recognition of gestures in a three-dimensional movement space.

Abstract: A lubrication system for lubricating bearings that includes at least one lubrication pump for pumping lubricant to the bearings and at least one metering valve for distributing the pumped lubricant throughout the lubrication system to the bearings. The system further includes a lubrication controller in communication with the at least one lubrication pump and at least one metering valve for controlling the lubrication system. The controller has firmware configured to provide a sequence of instructions to perform specified tasks and hardware that carries out the sequence of instructions to perform the specified tasks. In an unconfigured and unconnected state, the lubrication controller can be configured by reprogramming the firmware, to selectively control at least one of a series progressive lubrication system, a dual line lubrication system and a single line parallel lubrication system.

Abstract: The present invention provides a system and method for multi-phase flow decomposition using electrical capacitance imaging techniques. The present invention provides a system and method to obtain permittivity distributions at a plurality of frequency markers using volume tomography image reconstruction to determine volume fraction of each phase and to produce images of the volume fraction for each phase.

Abstract: Methods and apparatuses for measuring the thickness on at least one transparent or translucent medium and detecting the presence and/or location of any conductive coating on a non-conductive medium surface are described.

Abstract: A touch panel capable of measuring both mutual and self capacitance is disclosed. The touch panel can measure self capacitance and mutual capacitance at various electrode patterns and, based on the self capacitance measurements, the mutual capacitance measurements, or both, calculate a touch signal indicative of an object touching or hovering over the touch panel. In some examples, the measurements can also be used to determine a correction factor, indicative of an adverse condition at the touch panel, and the correction factor used to correct the touch signal for the adverse condition. The touch panel can have a row-column electrode pattern or a pixelated electrode pattern.

Abstract: In an embodiment, an apparatus for determining a value of a parameter related to electrical permittivity of a fluid includes capacitor formed by at least one electrode on a first side of a dielectric barrier and at least a part of an electrically conducting housing surrounding the barrier. The housing is adapted for being sealingly attached to a container so as to allow the fluid to be characterized to occupy a space between the housing and a side of the barrier, and an electronic relaxation type oscillator circuit is arranged on a miniature circuit board being fit to the housing and connected with the capacitor. An electrical power supply is connected to supply electrical power to the oscillator at an ultra-stable supply voltage, and a frequency measuring device coupled to the oscillator circuit for providing a measured oscillator frequency representing the electrical permittivity dependent on capacitance and resistance.

Abstract: The present invention provides a self-capacitive fingerprint recognition touch screen, a manufacturing method thereof, and a display device comprising the self-capacitive fingerprint recognition touch screen. The self-capacitive fingerprint recognition touch screen comprises a plurality of fingerprint recognition electrodes, and a plurality of connecting lines which are respectively electrically connected to the plurality of fingerprint recognition electrodes directly. The connecting lines are used for transmitting driving signals and detection signals needed by the fingerprint recognition electrodes.

Abstract: A sensor for measuring a thickness of a layer of a grain/residue mixture as the layer is transported through a cleaning arrangement of a combine harvester. The sensor is mounted on a support surface of a grain pan or a sieve of the cleaning arrangement and comprises a tower-shaped support structure with sensor elements attached to the structure and forming a vertical stack of sensor elements, so that a number of sensor elements is submerged in the layer and a number of sensor elements extends above the layer. The sensor elements are configured to measure an electrical property that changes as a function of immediate surroundings of the sensor elements. The sensor elements are configured to be read out independently from each other.

Abstract: A method and device for providing a multi-modal capacitive sensor, including a plurality of sensor electrodes, in an electronic device is provided. In a first mode, the capacitive sensor is configured to capture an image of a biometric object. In a second mode, the capacitive sensor is configured to provide presence detection functionality. In the second mode, the capacitive sensor includes at least one first electrode and at least one second electrode selected from a plurality of sensor electrodes. When operating in the second mode, the at least one first electrode is configured to receive a transmit signal, and the at least one second electrode is configured to receive a resulting signal capacitively coupled from the at least one first electrode. Based on the resulting signal, a processing system of the electronic device determines whether a biometric object to be imaged is present in the sensing area.

Abstract: A method and measurement system for measuring the wetness of a gas phase of a two phase flowing fluid. The measurement system includes a container, a liquid film measurement device and an Electrical Capacitance Tomography device.

Abstract: An operation detecting apparatus for a vehicle includes: a detecting unit including a first electrode and a second electrode for detecting variations in capacitance value; a capacitance measuring unit configured to measure a first capacitance value detected by the first electrode and a second capacitance value detected by the second electrode; a determining unit configured to compare a value on the basis of an amount of variations in the first capacitance value with a value on the basis of an amount of variations in the second capacitance value and determine presence or absence of operation from a user on the basis of the result of comparison; and an output unit configured to output a control signal on the basis of a result of determination of the determining unit.

Abstract: In one implementation, an electronic device includes: a display; a sensor configured to measure information to be used for determining whether the electronic device is underwater; and at least one processor configured to determine, based on results of the measurement by the sensor, whether the electronic device has fallen into the water. Upon determining that the electronic device has fallen into the water, the at least one processor displays maintenance operation information for guiding a user to maintenance operations for the electronic device on the display. The electronic device is capable of, when the electronic device has fallen into the water, guiding a user so as to prompt the user to perform self-maintenance on the electronic device so that a breakdown or the like of the electronic device due to moisture left in the electronic device can be prevented.

Abstract: A sensing method of a fingerprint sensor includes the following steps: (a) applying a first voltage, a second voltage and a third voltage to a first node connected to an electrode plate to be measured, a second node disconnected from the first node, and a conductor adjacent to the electrode plate to be measured, respectively; (b) providing a first finger drive voltage for a finger; (c) stopping applying the first, second and third voltages to the first node, the second node and the conductor, respectively; (d) after step (c), applying a fourth voltage to the conductor, and connecting the first node to the second node; (e) after steps (b) and (c), providing a second finger drive voltage for the finger; and (f) after steps (d) and (e), obtaining a measurement result of the electrode plate to be measured according to a signal on the second node.

Abstract: A sheet processing apparatus, comprising a thickness detecting device, the thickness detecting device including: a plurality of conductive displacement members; a plurality of resonance circuits that are disposed to correspond to the plurality of displacement members, each include a coil facing the corresponding displacement member and a capacitor, and neighboring resonance circuits resonate at different resonance frequencies; and a calculator that calculates a thickness of the sheet based on impedance values of the plurality of resonance circuits and the plurality of displacement members.

Abstract: A capacitive fingerprint sensor includes a compensation memory which stores a direct current offset parameter and a gain compensation parameter of each sensing unit of a capacitive sensing array. Therefore, the above-mentioned capacitive fingerprint sensor is able to individually compensate sensing signals measured by each the sensing unit and the sensing signals measured by each sensing unit have better uniformity and signal to noise ratio (SNR).