Thesis presents the development of an ultrasonic distance meter that can be reprogrammed. I have put together a development tool that, with the inclusion of the FPGA, will allow for later
study and upgrading of the electrical and logical part of the ultrasonic distance meter. The tool
consists of two parts, a MyRIO programmable logic controller and a custom printed circuit
board.
The introductory part of this thesis describes ultrasonic transducers, the method used to
calculate the distance, and presents the influence of temperature on the speed of ultrasonic
waves.
The second part describes the selected hardware, which also includes the MyRIO controller.
The MyRIO controller contains an FPGA, which is one of the main reasons why we decided to
choose this controller. In addition to the controller, I also developed a printed circuit that takes
care of amplifying the voltage signals of the ultrasonic receiver and the current of the ultrasonic
transmitter.
In the third part, I described the process of configuring the MyRIO controller in the LabVIEW
programming environment. This procedure is divided into two subsets. In the first part, I
described a part of the application that works on the FPGA, which is used to generate output
signals and capture input signals. In the second subsection, I described the algorithm for
calculating the distance and present created user interface.
In the concluding part of this thesis is presented at different stages of the ultrasonic meter.
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