3D models of piezoelectric and optical elements which assembled from microstructures of a certain geometry were developed. These models were prepared for printing on a 3D printer, considering the specifics of their geometry and the small size of each of the cells. After several printing attempts, designed prototypes were obtained using SLA technology with synthesized plastics. These prototypes were investigated for the presence of defects and the quality of the resulting elements (preservation of the necessary microcell structures). An analysis was carried out and a technology for printing elements of this type on a 3D printer was obtained. These designs can be used in practice as piezoelectric or piezoacoustic elements when a piezoelectric powder is added to a polymer, for example, in ultrasonic flowmeters, or used to create optical structures, for example, diffractive optical elements. They will have properties different from the properties of elements obtained by standard methods, due to using of microcells with a certain geometry in their constructions.
The problem with existing flow meters is a relatively high measurement error, which is associated with a lack of information on the flow profile. In order to create a reference device that makes it possible to study the flow profile due to a larger number of sensors, with bore size 50 mm primary transducer with fourteen channels is developing and manufacturing. This device can provide more accurate results due to the use of multiple channels of ultrasonic signal passage, which makes it possible to calculate large time points along the entire section of the pipe, as well as the ability to visualize the flow profile. In the course of the work, a 3D model of the primary transducer was developed in accordance with the requirements and conditions for the passage of ultrasound through a liquid medium, when it was necessary to take into account the simultaneous operation of several channels at once, taking into account the fact that the paths of ultrasound passage should not intersect. Processing several signals at once becomes possible, since five TDC microcontrollers will be used for all channels.
The development of piezoelectric and optical elements from microcells was carried out and models were prepared for printing on a 3D printer. These designs can be practically used as piezoacoustic or piezoelectric sensors, if added to the composition of the piezoelectric powder, for example, in ultrasonic flow meters, or used to create optical structures, for example, diffractive optical elements. Elements obtained by 3D printing will have properties that differ from the properties of elements obtained by standard methods.
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