Abstract: A capacitive detection device includes a sensor electrode, a shield electrode, a first voltage output unit configured to output a first alternating current voltage, a second voltage output unit configured to apply, to the shield electrode, a second alternating current voltage having a same frequency and phase as the first alternating current voltage and amplitude larger than that of the first alternating current voltage, a detection unit, an adjustment electrode, and a voltage setting configured to output, to the adjustment electrode, a third alternating current voltage having a same frequency and phase as the first alternating current voltage and amplitude smaller than that of the first alternating current voltage or a third alternating current voltage having a same frequency as the first alternating current voltage and a phase opposite to that of the first alternating current voltage or configured to set the adjustment electrode to a fixed potential.

Abstract: An input device includes an input section having an operating surface to be operated by a manipulating body, detection electrodes provided on a back side of the operating surface, a measurement unit that measures an electrostatic capacitance value of each of the detection electrodes, and a correction unit that corrects the electrostatic capacitance value of each of the detection electrodes measured by the measurement unit. The input section includes portions where displacements with respect to a pressing operation on the operating surface by the manipulating body with a predetermined pressing force differ depending on positions on the operating surface. The correction unit corrects the electrostatic capacitance value of each of the detection electrodes using smaller correction values for cases where a displacement caused by the pressing operation performed at pressing positions overlapping the detection electrodes on the operating surface in a plan view becomes larger.

Abstract: An input device includes an input section having an operating surface configured to be operated by an manipulating body, and a plurality of detection electrodes provided on a back side of the operating surface, wherein the input section includes portions where displacements with respect to a pressing operation on the operating surface by the manipulating body with a predetermined pressing force differ depending on positions on the operating surface, and the plurality of detection electrodes have a smaller area as a displacement in a case where the pressing operation performed with the predetermined pressing force on the operating surface at pressing positions overlapping the plurality of detection electrodes in a plan view becomes larger.

Abstract: A pipe (10) includes a polyethylene-based resin layer (21) containing a polyethylene-based resin composition as a major component. The polyethylene-based resin layer (21) forms a pipeline member inner surface (10a). The polyethylene-based resin composition has a calcium concentration of 10 ppm or more and 60 ppm or less.

Abstract: The position detection device includes a detector that detects degrees of contact or degrees of proximity of an object to an operation surface at a plurality of detection positions on the operation surface and outputs a plurality of detection data representing the degrees at the plurality of detection positions, a coordinate calculator for calculating a spatial coordinate of the object in a spatial coordinate system having a first axis and a second axis included in a plane parallel to the operation surface and a third axis, based on the plurality of detection data detected by the detector, and a coordinate corrector that corrects a coordinate value of the first axis or a coordinate value of the second axis in the spatial coordinate based on a coordinate value of the third axis in the spatial coordinate calculated by the coordinate calculator.

Abstract: An input device includes: a light-emitting diode; a switching element connected in series with the light-emitting diode, the switching element switching the light-emitting diode between the on and off states; an electrostatic sensor having a detection electrode capacitively coupled to a circuit portion disposed between the light-emitting diode and the switching element; and a capacitor having a first terminal connected to the circuit portion and a second terminal connected to a fixed potential point.

Abstract: A capacitive detection device includes a sensor electrode, a shield electrode, a first voltage output unit configured to output a first alternating current voltage, a second voltage output unit configured to apply, to the shield electrode, a second alternating current voltage having a same frequency and phase as the first alternating current voltage and amplitude larger than that of the first alternating current voltage, a detection unit, an adjustment electrode, and a voltage setting configured to output, to the adjustment electrode, a third alternating current voltage having a same frequency and phase as the first alternating current voltage and amplitude smaller than that of the first alternating current voltage or a third alternating current voltage having a same frequency as the first alternating current voltage and a phase opposite to that of the first alternating current voltage or configured to set the adjustment electrode to a fixed potential.

Abstract: A human body detecting sensor system includes a first electrode, a second electrode, a drive circuit, a detection circuit, and a comparison circuit. The second electrode is connected to the first electrode via a capacitor. The drive circuit generates a first signal having a prescribed frequency for driving the first electrode. The detection circuit detects a second signal generated at the second electrode in response to the first signal being supplied to the first electrode. The comparison circuit compares the first signal with the second signal. The comparison circuit detects a touch and/or an approach of an object, which has an impedance in a certain range corresponding to a human body, with respect to at least one of the first and second electrodes when a phase difference between the first signal and the second signal is within a prescribed range.

Abstract: Provided is a sheave for a lift, including: a base member having a cylindrical shape; a winding member that is coaxial with the base member and has a cylindrical shape with a diameter larger than a diameter of the base member; and a plurality of intermediate members provided between the base member and the winding member in a radial direction of the winding member. Each of the plurality of intermediate members includes: a first end portion connected to the base member; a second end portion connected to the winding member; a third end portion connected to the winding member at a position different from a position at which the second end portion is connected to the winding member in a circumferential direction of the winding member; and a branch portion formed between the first end portion and each of the second end portion and the third end portion.

Abstract: The position detection device includes a detector that detects degrees of contact or degrees of proximity of an object to an operation surface at a plurality of detection positions on the operation surface and outputs a plurality of detection data representing the degrees at the plurality of detection positions, a coordinate calculator for calculating a spatial coordinate of the object in a spatial coordinate system having a first axis and a second axis included in a plane parallel to the operation surface and a third axis, based on the plurality of detection data detected by the detector, and a coordinate corrector that corrects a coordinate value of the first axis or a coordinate value of the second axis in the spatial coordinate based on a coordinate value of the third axis in the spatial coordinate calculated by the coordinate calculator.

Abstract: A self-capacitance-system electrostatic-capacitance detection sensor includes a first electrode and a second electrode, one of the first and second electrodes being set as a sense electrode, and the other of the first and second electrodes being set as a drive electrode; a sense-signal generating unit that generates a sense signal to be applied to the sense electrode; a detecting unit that detects, as a detection value, an amount of charge movement corresponding to an electrostatic capacitance of the sense electrode; and a determining unit that determines whether or not a detection target is in close proximity to both the first and second electrodes, based on a subtraction difference between detection values detected by the detecting unit when a first drive signal is applied to the drive electrode and when a second drive signal having the same frequency and a different phase is applied to the drive electrode.

Abstract: A capacitive sensor includes a sensor unit including a detection electrode, a capacitance detection unit configured to detect a capacitance value of the detection electrode of the sensor unit, a difference value calculation unit configured to calculate a difference value between the capacitance value and a reference value, a filter calculation unit configured to perform a time-directional filtering process using a filter parameter on the difference value and calculate a filter calculation value, a determination unit configured to determine a condition around the sensor unit on the basis of the filter calculation value calculated by the filter calculation unit, and a filter parameter calculation unit configured to calculate the filter parameter on the basis of the difference value calculated by the difference value calculation unit.

Abstract: A measurement device includes N (N?2) sensors, a selection unit configured to select a predetermined combination of sensors in each measurement and output a detection value to each of M (M<N) sensor terminals based on measurement values provided by the selected sensors, a detection unit configured to acquire the detection value output to each of the M sensors in each measurement, and a correction unit configured to, after the measurement is performed L times, based on an assumption that each of M×L detection values acquired by the acquisition unit includes a time-dependent noise component, correct each of the M×L detection values such that the time-dependent noise component of each of the detection values is replaced by a common noise component obtained by averaging the L time-dependent noise components along a time axis.

Abstract: A human body detecting sensor system includes a first electrode, a second electrode, a drive circuit, a detection circuit, and a comparison circuit. The second electrode is connected to the first electrode via a capacitor. The drive circuit generates a first signal having a prescribed frequency for driving the first electrode. The detection circuit detects a second signal generated at the second electrode in response to the first signal being supplied to the first electrode. The comparison circuit compares the first signal with the second signal. The comparison circuit detects a touch and/or an approach of an object, which has an impedance in a certain range corresponding to a human body, with respect to at least one of the first and second electrodes when a phase difference between the first signal and the second signal is within a prescribed range.

Abstract: A pipe (10) includes a polyethylene-based resin layer (21) containing a polyethylene-based resin composition as a major component. The polyethylene-based resin layer (21) forms a pipeline member inner surface (10a). The polyethylene-based resin composition has a calcium concentration of 10 ppm or more and 60 ppm or less.

Abstract: An input apparatus includes a detection unit that repeatedly generates a detection signal according to a degree of proximity of the object, a drift simulation unit that generates a drift simulated signal that undergoes a change having correlation with a drift in the detection signal due to repeated generation of the detection signal in the detection unit, and a correction unit that corrects the detection signal according to the change in the drift simulated signal at least one of when repeated generation of the detection signal in the detection unit is started and when an interval for repeatedly generating the detection signal in the detection unit is changed.

Abstract: A sensor device has: a sensor unit that outputs a sinusoidal detection signal having an amplitude matching a physical quantity to be detected; a reference signal creator that creates a first sinusoidal reference signal having the same frequency and phase as the detection signal; and a demodulator that multiplies the detection signal by the first reference signal and creates, as a first demodulation signal matching the physical quantity, a signal matching a direct-current component included in a signal resulting from the multiplication. The reference signal creator creates a sinusoidal second reference signal having the same frequency as the detection signal but being out of phase with the detection signal. The demodulator multiplies the detection signal by the second reference signal and creates, as a second demodulation signal matching a noise component superimposed on the detection signal, a signal matching a direct-current component included in a signal resulting from the multiplication.

Abstract: A capacitive sensor includes a sensor unit including a detection electrode, a capacitance detection unit configured to detect a capacitance value of the detection electrode of the sensor unit, a difference value calculation unit configured to calculate a difference value between the capacitance value and a reference value, a filter calculation unit configured to perform a time-directional filtering process using a filter parameter on the difference value and calculate a filter calculation value, a determination unit configured to determine a condition around the sensor unit on the basis of the filter calculation value calculated by the filter calculation unit, and a filter parameter calculation unit configured to calculate the filter parameter on the basis of the difference value calculated by the difference value calculation unit.

Abstract: A handwriting input device, in response to a handwriting operation that moves an object on an input surface with the object contacting the input surface, inputs information corresponding to the path of the contact position of the object on the input surface. The handwriting input device includes a sensor part and a determining part. The sensor part detects the contact position of the object on the input surface and the presence or absence of the object within a predetermined operation space adjacent to the input surface. The determining part determines the start and the end of the handwriting operation based on the detection result of the sensor part. The determining part determines the continuance of the handwriting operation in response to detecting the presence of the object within the operation space by the sensor part after determining the start of the handwriting operation.

Abstract: An electrostatic sensor includes a detection electrode, a shield electrode provided in a periphery of the detection electrode, a first power supply coupled to the detection electrode and configured to generate an AC voltage having a first amplitude, a second power supply coupled to the shield electrode and configured to generate an AC voltage having a second amplitude, a measuring device configured to measure a quantity of charge flowing from the first power supply to the detection electrode, and a control device coupled to the measuring device. The AC voltages generated by the first and second power supplies have the same frequency and the same phase. The second amplitude is larger than the first amplitude. A detection target on a side of a detection surface is detected based on a change in an electrostatic capacitance between the detection electrode and the detection target.