36results about How to "Improve discharge accuracy" patented technology

A flexible tank has a volume-variable chamber formed so as to be sectioned by a flexible tube that is expanded or contracted in accordance with the amount of the contained chemical liquid, and adaptor parts attached to the flexible tube. A primary-side port open to the volume-variable chamber is open into one of the adaptor parts, and a secondary-side port open to the volume-variable chamber is open into the other adaptor part. The contact between the chemical liquid and air in the volume-variable chamber is suppressed to minimum level, thereby containing the chemical liquid without deteriorating the cleanliness of the chemical liquid, and improving discharge accuracy of the chemical liquid.

The present invention provides a nozzle plate, the nozzle plate including: a first silicon substrate; and a second silicon substrate which has a crystal orientation different from that of the first silicon substrate and is bonded to the first silicon substrate, wherein the first silicon substrate includes a first through hole, and the second silicon substrate includes a second through hole which the first through hole communicates with, and has a different structure from that of the first through hole.

There is provided a liquid discharging apparatus including: a modulation portion which generates a modulation signal pulse-modulated from a source signal; a gate driver which generates an amplification control signal based on the modulation signal; a boosting circuit which boosts and supplies a voltage to the gate driver; a transistor which generates an amplification modulation signal amplified from the modulation signal based on the amplification control signal; a low pass filter which demodulates the amplification modulation signal and generates a driving signal; and a piezoelectric element which is displaced as the driving signal is applied, in which the gate driver and the boosting circuit are electrically connected to a common ground terminal, and in which a wiring impedance between the ground terminal and the gate driver is smaller than a wiring impedance between the ground terminal and the boosting circuit.

A viscous material application apparatus includes a main body having a pressurized chamber which connects through to a discharge port and stores a viscous material, a viscous material supply device for transferring the viscous material to the pressurized chamber, and a discharge pressure regulating device for regulating the discharge pressure of the viscous material when the viscous material inside the pressurized chamber is pressurized and discharged by increasing or decreasing the capacity of the pressurized chamber, the discharge pressure regulating device being provided either inside the pressurized chamber or facing the pressurized chamber.

There is provided a liquid discharging apparatus including: a low voltage system circuit block including a modulation portion which generates a modulation signal pulse-modulated from a source signal; a high voltage system circuit block including a gate driver which generates an amplification control signal based on the modulation signal; a transistor which generates an amplification modulation signal amplified from the modulation signal based on the amplification control signal; a low pass filter which demodulates the amplification modulation signal and generates a driving signal; and a piezoelectric element which is displaced as the driving signal is applied, in which the low voltage system circuit block and the high voltage system circuit block are formed on the same semiconductor substrate, in which the semiconductor substrate has one substrate potential supply terminal to which a substrate potential of the semiconductor substrate is supplied.

There is provided a liquid discharging apparatus including: a low voltage system circuit block including a modulation portion which generates a modulation signal pulse-modulated from a source signal; a transistor which generates an amplification modulation signal amplified from the modulation signal; a first high voltage system circuit block which receives the signal from the low voltage system circuit block and performs a switching operation; a second high voltage system circuit block which does not perform the switching operation; a low pass filter which demodulates the amplification modulation signal and generates a driving signal; and a piezoelectric element which is displaced as the driving signal is applied, in which the second high voltage system circuit block is disposed between the low voltage system circuit block and the first high voltage system circuit block.

A liquid discharge apparatus includes: an integrated circuit device that includes a modulation portion which generates a modulation signal by pulse-modulating a source signal; a feedback circuit; a transistor that generates an amplified modulation signal which is obtained by amplifying the modulation signal; a low-pass filter that generates a drive signal by demodulating the amplified modulation signal; and a piezoelectric element that is displaced by applying the drive signal, wherein the feedback circuit generates a feedback signal on the basis of the drive signal, and feeds back the feedback signal to the modulation portion through a feedback terminal, the modulation portion includes a first circuit block and a second circuit block, and the integrated circuit device is configured to separate the first circuit block from the second circuit block by a triple-well structure.

The invention discloses a portable storage battery performance test device. The device comprises: a control module used for sending a test digital signal; a digital-to-analog conversion module used for performing digital-to-analog conversion on the received test digital signal to obtain a test analog signal; an operational amplifier module used for carrying out operational amplifier processing onthe test analog signal to obtain an operational amplifier signal; an alternating current power supply output module used for outputting a test alternating current signal according to the operational amplifier signal; a signal acquisition module used for acquiring an output signal after the test alternating current signal passes through the tested storage battery; an internal resistance measurementmodule used for performing internal resistance measurement on the output signal to obtain an internal resistance analog signal; and an analog-to-digital conversion module used for performing analog-to-digital conversion on the internal resistance analog signal to obtain an internal resistance digital signal, wherein the control module is also used for receiving the internal resistance digital signal to obtain an internal resistance test result, and the tested storage battery is converted into a power supply by a power supply module. The device has the technical characteristics of being portable and accurate in measurement.

The present invention relates to a plasma display panel including electrodes. In the plasma display panel according to an embodiment of the present invention, an area of a scan electrode is larger than that of a sustain electrode. Therefore, a jitter characteristic improves.

There is provided a liquid discharging apparatus including: a modulation portion which generates a modulation signal pulse-modulated from a source signal; a ground terminal which electrically connects the modulation portion to a ground potential; a transistor which generates an amplification modulation signal amplified from the modulation signal; a low pass filter which demodulates the amplification modulation signal and generates a driving signal; a feedback circuit which generates a feedback signal based on the driving signal, and sends back the feedback signal to the modulation portion via a feedback terminal; and a piezoelectric element which is displaced as the driving signal is applied, in which the modulation portion, the ground terminal, and the feedback terminal are formed on the same semiconductor substrate, and in which, in a plan view, the ground terminal and the feedback terminal are disposed being adjacent to each other.

A diaphragm pump includes a reciprocable diaphragm, an actuator including a motor, and a control device. The control device resets an origin of the diaphragm in a reciprocating direction, when detecting a step-out of the motor. After resetting the origin, the control device activates the actuator to move the diaphragm to the origin.

An object of the present invention is to provide a method for producing a nozzle plate and a method for producing a liquid jet head, each capable of improving the discharge accuracy of a nozzle. A method for producing a nozzle plate according to an embodiment includes a substrate preparation step of preparing a coating agent-applied substrate in which a coating agent is applied to at least a part of a nozzle plate substrate, a nozzle hole formation step of forming a nozzle hole in a region, to which the coating agent is applied, of the coating agent-applied substrate after the substrate preparation step, and a coating agent removal step of removing the coating agent after the nozzle hole formation step.

A droplet discharging head includes a diaphragm, a fixing plate, and a piezoelectric element. The piezoelectric element includes a first electrode, a second electrode, a piezoelectric body layer interposed between the first and second electrodes, a first internal electrode extending from the first electrode between the first and second electrodes, and a second internal electrode extending from the second electrode between the first and second electrodes. At least a part of a first end face of the piezoelectric element is in contact with the diaphragm. The first end face includes a first end of the first electrode, a first end of the second electrode, and a first end of the piezoelectric body layer. At least a part of a second end face of the piezoelectric element is in contact with the fixing plate. The second end face includes a second end of the first electrode and a second end of the piezoelectric body layer. At least a part of the first end of the piezoelectric body layer lies between the diaphragm and the first end of the second electrode. At least a part of the second end of the piezoelectric body layer lies between the fixing plate and a second end of the second electrode. The piezoelectric body layer includes an active layer that overlaps both the first and second internal electrodes, a first inactive layer that overlaps only the first internal electrode, and a second inactive layer that overlaps only the second internal electrode. A thickness of the second inactive layer between the second electrode and the active layer is larger than a thickness of the first inactive layer between the first electrode and the active layer.

There is provided a liquid discharging apparatus including: an integrated circuit device; a feedback circuit; a transistor which generates an amplification modulation signal amplified from a modulation signal pulse-modulated from a source signal, based on an amplification control signal; a low pass filter which demodulates the amplification modulation signal and generates a driving signal; and a piezoelectric element which is displaced as the driving signal is applied, in which the integrated circuit device includes a modulation portion which generates the modulation signal; a gate driver which generates the amplification control signal based on the modulation signal; and a feedback terminal which is electrically connected to the modulation portion and the feedback circuit, in which the feedback circuit generates a feedback signal based on the driving signal and sends back the feedback signal to the modulation portion.