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Емкостный цифровой датчик избыточного давления

выпускная квалификационная работа бакалавра

Емкостный цифровой датчик избыточного давления

Abstract

Работа посвящена реализации цифрового канала измерения давления состоящего из преобразователя емкости в цифровой код с подключенным к нему датчиком давления, и микроконтроллера, обрабатывающего и передающего данные на персональный компьютер. На первом этапе работы выполнен обзор различных конструкций емкостных преобразователей и исследована зависимость емкости от внешних факторов. На втором этапе выбрана микросхема, позволяющая реализовать передачу данных от AD7746 на компьютер. Далее, подключены компоненты и проведены экспериментальные исследования на стенде измерения избыточного давления. Реализованная в Labview программа осуществила измерение давления и автоматическую обработку данных.

The work is devoted to the implementation of a digital pressure measurement channel consisting of a capacitance -to-digital converter with a pressure sensor connected to it, and a microcontroller processing and transmitting data to a personal computer. At the first stage of the work, a review of various designs of capacitive transducers was carried out and the dependence of capacity on external factors was investigated. At the second stage, a microcircuit was chosen, which allows for the transfer of data from the AD7746 to a computer. Further, the components are connected and experimental studies are carried out at the stand of measuring excess pressure. The Labview-implemented software measured pressure and automated data processing.

Keywords

AD7746, Labview, I2C, capacitance, емкость конденсатора, Arduino, Ñ‚Ñ€ÐµÑ Ð·Ð°Ð¶Ð¸Ð¼Ð½Ð°Ñ ÑÑ ÐµÐ¼Ð°, three-clamp circuit

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citations
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
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