摘要:
A check valve is housed in a valve chamber and includes a support portion and a flexible portion. The support portion extends along a principal axis thereof. The flexible portion is supported by the support portion in a manner extending from the principal axis. A diaphragm defines a lower wall of the valve chamber, and includes an inflow port for fluid at a position that is closed with the flexible portion when the flexible portion is displaced. A bottom plate defines an upper wall of the valve chamber, and faces the diaphragm with the flexible portion arranged therebetween. An uneven portion is provided in at least one of mutually facing areas of an upper principal surface, which is one of two principal surfaces of the flexible portion and faces the bottom plate, and a lower principal surface of the bottom plate, the uneven portion being partially uneven.
摘要:
A piezoelectric pump is capable of reliably discharging gas and reliably transporting liquid even when intermittently driven. The piezoelectric pump includes a piezoelectric vibrator, a diaphragm deflected and deformed by the piezoelectric vibrator, a pump chamber including at least one wall surface defined by the diaphragm, an inlet through which liquid, gas, or a mixture of liquid and gas flows into the pump chamber, an outlet through which the fluid is discharged, and a liquid holding member arranged to provide a gap between the liquid holding member and the inner surface of the pump chamber and to maintain the liquid in the gap using capillary effect or surface tension. A flow passage plate includes a flow passage groove provided therein.
摘要:
A touch sensor panel disclosed herein includes: a plurality of vertical electrodes (6); and a plurality of horizontal electrodes (7), the plurality of vertical electrodes (6) and the plurality of horizontal electrodes (7) (i) being so disposed that, as viewed in the direction perpendicular to a substrate, the plurality of vertical electrodes (6) include no segment coincident with the plurality of horizontal electrodes (7) and (ii) forming a uniform grid having no gap.
摘要:
A capacitance distribution detection circuit (102) includes a multiplexer (104), a driver (105), and a sense amplifier (106), and the multiplexer (104) switches states between a first connection state in which first signal lines (HL1 to HLM) are connected to the driver (105) and second signal lines (VL1 to VLM) are connected to the sense amplifier (106), and a second connection state in which the first signal lines (HL1 to HLM) are connected to the sense amplifier (106) and the second signal lines (VL1 to VLM) are connected to the driver (105). The first connection state (A) (a) drives, on the basis of code sequences (di (=di1, di2, . . . , diN, where i=1, . . . , M)) which include +1 or −1 and each of which has a length N, the first signal lines (HL1 to HLM) in parallel so that voltages +V or −V are applied and (b) outputs, along each of the second signal lines (VL1 to VLM), a linear sum of electric charges stored in capacitors corresponding to that respective one of the second signal lines, and (B) estimates, on the basis of an inner product operation of the linear sum of the electric charges outputted along the second signal lines (VL1 to VLM) and the code sequences di, a capacitance of the capacitors formed along that second signal line, for each of the plurality of second signal lines (VL1 to VLM), and the second connection state (C) (a) drives, on the basis of code sequences (di (=di1, di2, . . . , diN, where i=1, . . . , M)), the second signal lines (VL1 to VLM) in parallel so that voltages +V or −V are applied and (b) outputs, along each of the first signal lines (HL1 to HLM), a linear sum of electric charges stored in the capacitors corresponding to that respective one of the first signal lines, and (D) estimates, on the basis of an inner product operation of the linear sum of the electric charges outputted along the first signal lines (HL1 to HLM) and the code sequences di, a capacitance of the capacitors formed along that first signal line, for each of the plurality of first signal lines (HL1 to HLM).
摘要:
Provided is a touch panel system (1) capable of reliably removing a wide variety of noises. The touch panel system (1) includes a main sensor (31) which detects a touch operation, a sub sensor (32) which does not detect a touch operation but detects a noise component, and a subtracting section (41) which subtracts, from an output signal of the main sensor (31), an output signal of the sub sensor (32). The subtracting section (41) performs a subtracting operation to remove a noise component from the output signal of the main sensor (31), thereby extracting a signal derived from the touch operation itself.
摘要:
A capacitance detecting method disclosed herein, which achieves a good detection accuracy, a good resolution, and a high-speed operation, (A)(a) drives, on the basis of code sequences (di (=di1, . . . , diN, where i=1, . . . , M)) which are orthogonal to one another, drive lines (DL1, . . . , DLM) in parallel for each of (I) a first capacitance column (Ci1) between the drive lines and a first sense line (SL1) and (II) a second capacitance column (Ci2) between the drive lines and a second sense line (SL2) and (b) outputs (sFirst=(s11, . . . , s1N)) from the column (Ci1) and outputs (sSecond=(s21, . . . , s2N)) from the column (Ci2), and (B) estimates (a) on the basis of inner product operation of the outputs (sFirst) and the code sequences (di), a first capacitance value in the column (Ci1) and (b) on the basis of inner product operation of the outputs (sSecond) and the code sequences (di), a second capacitance value in the column (Ci2).
摘要:
An electronic chip attitude changing device includes a rotor having, on the outer periphery, cavities that are formed at equal pitch to respectively contain and hold electronic chips with a part thereof projecting out; an air suction path for drawing and holding the electronic chips in the cavities of the rotor; a driving device for rotationally driving the rotor in a predetermined direction; and a chip guide placed at a fixed position close to the outer periphery of the rotor and having a guide face for making sliding contact with the projecting portions of the electronic chips held in the cavities so as to turn the attitudes of the electronic chips by 90°.
摘要:
An inner product calculation device for calculating an inner product of a coefficient vector including at least one first element with a positive sign and at least one second element with a negative sign and an input vector including elements corresponding to a plurality of input voltages. The device includes: an amplifier having an input terminal and an output terminal; a first capacitor corresponding to the first element and having a capacitance in proportion to a value of the first element; a second capacitor corresponding to the second element, and having a capacitance in proportion to an absolute value of the second element; a third capacitor connected to one end of the first capacitor, one end of the second capacitor, and the input terminal of the amplifier; a voltage source applying, during a first period a corresponding one of the input voltages to the first capacitor and a reference voltage to the second capacitor and the third capacitor; and applying, during a second period following the first period, the reference voltage to the first capacitor, a corresponding one of the plurality of input voltages to the second capacitor, and an output voltage output from the output terminal of the amplifier to the third capacitor; and a switch for short-circuiting the input terminal of the amplifier and the output terminal of the amplifier during a third period.
摘要:
An operational amplifier including reverse amplifiers interconnected in series in an odd number of stages not less than three, an element for feeding back an output from the reverse amplifier in the last stage to an input of the reverse amplifier in a first stage, and a feedback capacitance element provided across the input and output ends of at least one of the reverse amplifiers. The Miller effect makes the feedback current from the capacitance element appear as if it were increased by a factor of the amplification factor of a concerned inverter. Thus, the capacity of the capacitance element preventing the oscillation of the inverters can be reduced. As a result, the operational amplifier becomes highly responsive, and therefore, becomes operable for a high frequency signal.
摘要:
An artificial nail (1) has a member made of a material having electrical conductivity. The artificial nail (1) is given electrical conductivity by mixing an electrically conductive material into plastic serving as a base material. As the electrically conductive material, a carbon-based material, such as carbon black, carbon fiber, or black lead, or a metal-based material, such as a fine metal powder, a metal oxide, metal fiber, or a whisker, is used. Alternatively, the base material for the artificial nail (1) per se is an electrically conductive resin.