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Capacitive digital overpressure senso
- Publication Year :
- 2019
- Publisher :
- СанкÑ-ÐеÑеÑбÑÑгÑкий полиÑÐµÑ Ð½Ð¸ÑеÑкий ÑнивеÑÑиÑÐµÑ ÐеÑÑа Ðеликого, 2019.
-
Abstract
- РабоÑа поÑвÑÑена ÑеализаÑии ÑиÑÑового канала измеÑÐµÐ½Ð¸Ñ Ð´Ð°Ð²Ð»ÐµÐ½Ð¸Ñ ÑоÑÑоÑÑего из пÑеобÑазоваÑÐµÐ»Ñ ÐµÐ¼ÐºÐ¾ÑÑи в ÑиÑÑовой код Ñ Ð¿Ð¾Ð´ÐºÐ»ÑÑеннÑм к Ð½ÐµÐ¼Ñ Ð´Ð°ÑÑиком давлениÑ, и микÑоконÑÑоллеÑа, обÑабаÑÑваÑÑего и пеÑедаÑÑего даннÑе на пеÑÑоналÑнÑй компÑÑÑеÑ. Ðа пеÑвом ÑÑапе ÑабоÑÑ Ð²Ñполнен Ð¾Ð±Ð·Ð¾Ñ ÑазлиÑнÑÑ ÐºÐ¾Ð½ÑÑÑÑкÑий емкоÑÑнÑÑ Ð¿ÑеобÑазоваÑелей и иÑÑледована завиÑимоÑÑÑ ÐµÐ¼ÐºÐ¾ÑÑи Ð¾Ñ Ð²Ð½ÐµÑÐ½Ð¸Ñ ÑакÑоÑов. Ðа вÑоÑом ÑÑапе вÑбÑана микÑоÑÑ ÐµÐ¼Ð°, позволÑÑÑÐ°Ñ ÑеализоваÑÑ Ð¿ÐµÑедаÑÑ Ð´Ð°Ð½Ð½ÑÑ Ð¾Ñ AD7746 на компÑÑÑеÑ. Ðалее, подклÑÑÐµÐ½Ñ ÐºÐ¾Ð¼Ð¿Ð¾Ð½ÐµÐ½ÑÑ Ð¸ пÑÐ¾Ð²ÐµÐ´ÐµÐ½Ñ ÑкÑпеÑименÑалÑнÑе иÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ñ Ð½Ð° ÑÑенде измеÑÐµÐ½Ð¸Ñ Ð¸Ð·Ð±ÑÑоÑного давлениÑ. Ð ÐµÐ°Ð»Ð¸Ð·Ð¾Ð²Ð°Ð½Ð½Ð°Ñ Ð² Labview пÑогÑамма оÑÑÑеÑÑвила измеÑение Ð´Ð°Ð²Ð»ÐµÐ½Ð¸Ñ Ð¸ авÑомаÑиÑеÑкÑÑ Ð¾Ð±ÑабоÑÐºÑ Ð´Ð°Ð½Ð½ÑÑ .<br />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.
Details
- Language :
- Russian
- Database :
- OpenAIRE
- Accession number :
- edsair.doi...........70ad46ea3a50c0f59a1a149225b96470
- Full Text :
- https://doi.org/10.18720/spbpu/3/2019/vr/vr19-2758