A mist spraying unit atomizes a liquid and sprays the liquid as a mist, a light projector irradiates a space into which the mist is sprayed from the mist spraying unit with light, an imaging unit images scattered light by the mist of the light irradiated from the light projector, and an arithmetic unit calculates a mist concentration in the space based on a luminance value of a pixel constituting an image acquired from the imaging unit, thereby stopping spraying of the mist sprayed from the mist spraying unit.

Various implementations include a feedback type and jet interaction-type fluidic oscillator devices with atomized output. The device includes first and second fluidic oscillators. Each of the first and second fluidic oscillators include an interaction chamber, a fluid supply inlet, an outlet nozzle, and first and second feedback channels. The first feedback channel of the first fluidic oscillator share a common intermediate portion such that the first feedback channels are in fluid communication with each other, causing the fluid streams exiting the outlet nozzles of the first fluidic oscillator and second fluidic oscillator to oscillate in phase with each other. The outlet nozzle of the first fluidic oscillator and the outlet nozzle of the second fluidic oscillator are structured such that the fluid streams exiting the outlet nozzle of the first fluidic oscillator and the outlet nozzle of the second fluidic oscillator collide with each other, creating an atomized spray.

The present invention relates to devices and methods for measuring a varnish jet for a varnishing process for electronic subassemblies. Said devices and methods allow the width and symmetry of the varnish jet to be determined without performing any relative movement between the varnish jet and the sensor.

A spray device (A) according to the present disclosure includes: a two-fluid nozzle (11) which sprays a mist (91); a spray-device-side gas flow path (12) for supplying a gas to the two-fluid nozzle (11); a gas supply source (17) which supplies the gas to the spray-device-side gas flow path (12); a spray-device-side liquid flow path (13) for supplying a liquid to the two-fluid nozzle (11); a liquid supply source (18) which supplies the liquid to the spray-device-side liquid flow path (13); a pulse-driven liquid flow control valve (14) having a valve opening degree that is adjusted according to a pulse signal to control the flow rate of the liquid in the spray-device-side liquid flow path (13); and a controller (30) which adjusts, in multiple levels, the concentration of the mist (91) sprayed from the two-fluid nozzle 11 by adjusting the valve opening degree of the liquid flow control valve 14.

An acoustic force assisted painting system includes a housing, a nozzle, and at least one first transducer. The conduit is configured to receive paint from an external source. The nozzle is disposed in the housing. The nozzle has an inlet that is fluidly connected to the conduit and is configured to receive paint from the conduit. The nozzle has an outlet configured to dispense the paint. The at least one first transducer is disposed in the housing at a location downstream of the nozzle outlet in a flow direction of the paint.

A handheld shower head, including a liquid dispensing portion comprising a plurality of liquid apertures to dispense a liquid therefrom, a handle assembly disposed on at least a portion of the liquid dispensing portion to facilitate gripping thereof and to control a type of the liquid dispensed from the plurality of liquid apertures using a liquid setting, and a soap container detachably connected to at least a portion of the handle assembly to store a cleansing liquid therein and send the cleansing liquid through the handle assembly to the plurality of liquid apertures based on the liquid setting.

A system for controlling a ground speed of an agricultural sprayer includes a boom and a nozzle mounted on the boom. The nozzle, in turn, is configured to dispense a fan of an agricultural fluid as the agricultural sprayer travels across a field. Additionally, the system includes a sensor configured to capture data indicative of a spray quality parameter associated with the dispensed fan of the agricultural fluid. Furthermore, the system includes a controller communicatively coupled to the sensor. As such, the controller is configured to receive the captured data from the sensor as the agricultural sprayer travels across the field. Moreover, the controller is configured to determine the spray quality parameter based on the received data. In addition, the controller is configured to control a ground speed of the agricultural sprayer based on the determined spray quality parameter.

A method for controlling gas dynamic spraying includes providing a particle jet by using an accelerating nozzle, illuminating the particle jet with illuminating light pulses, capturing images of the particle jet illuminated with the illuminating light pulses, and determining one or more velocity values by analyzing the captured images,
wherein the images are captured by using an imaging unit which includes imaging optics to form an optical image of an object plane on an image sensor by focusing light, wherein an optical axis of the imaging unit is inclined with respect to a central axis of the nozzle, and wherein the image sensor is inclined with respect to the optical axis such that the object plane is substantially parallel with a direction of movement of particles of the particle jet.

A method for monitoring the media flow of a jet of droplets is intended to enable reliable process management, especially in industrial applications, in a particularly simple and resource-saving manner. For this purpose signal signatures assigned to individual droplets are continuously recorded by time-resolved measurement of the intensity of the scattered light of a light beam crossing the droplet beam, from which a diagnostic parameter characteristic of the droplet beam is determined.

A two fluid spray equipment includes: two fluid nozzles of a plurality of systems; a water supply apparatus for supplying the pressurized water at common pressure; a compressed air supply apparatus for supplying the compressed gas at common pressure; and a plurality of spray control units for controlling spray of the two fluid nozzle of each of the plurality of systems, wherein each of the plurality of spray control units includes a water pressure control unit for performing control to reduce pressure of the pressurized water supplied from the water supply apparatus based on a spray command value without pressurization, and an air pressure control unit for controlling pressure of the compressed gas supplied from the compressed air supply apparatus based on the spray command value.