Home > Search Results: keywords:"Wheatstonův můstek"
Search:
Search Tips :: Advanced Search
Search collections:
Sort by: Display results: Output format:
National Repository of Grey Literature 2 records found  Search took 0.00 seconds. 
Design and realization of the measuring amplifier of mechanical quantities
 Kaplan, Tomáš ; Chalupa, Jan (referee) ; Krejčí, Petr (advisor)
Subject of this effort is development and realization of one-channel data acquisition unit of mechanical quantities and it’s PC software application. Usage of this data acquisition unit is aimed on applications, where resistive strain gages wired as Wheatstone bridge with AC excitation are used. Output voltage of Wheatstone bridge is amplięed, demodulated with excitation voltage, filtered and level shifted for analog to digital conversion via AD converter. Converted digital data are sent via serial bus into microprocessor which sends them into PC for further meaningful representation in software application. Besides sensing bridge output voltage, data acquisition unit also generates AC excitation of Wheatstone bridge. This excitation voltage is generated via DA converter which communicates with microprocessor and converts incoming digital data into analog sine waveform. There is precise voltage reference circuitry for both of these converters. PC application’s task is to visualize measured data in meaningful form and to give tools for further work with measured data. It’s programmed in Python language and it has one independent thread which does reading and computing of incoming data and there is also class which builds graphical user interface and plots measured data into live graph.
Detailed record
Design and realization of the measuring amplifier of mechanical quantities
 Kaplan, Tomáš ; Chalupa, Jan (referee) ; Krejčí, Petr (advisor)
Subject of this effort is development and realization of one-channel data acquisition unit of mechanical quantities and it’s PC software application. Usage of this data acquisition unit is aimed on applications, where resistive strain gages wired as Wheatstone bridge with AC excitation are used. Output voltage of Wheatstone bridge is amplięed, demodulated with excitation voltage, filtered and level shifted for analog to digital conversion via AD converter. Converted digital data are sent via serial bus into microprocessor which sends them into PC for further meaningful representation in software application. Besides sensing bridge output voltage, data acquisition unit also generates AC excitation of Wheatstone bridge. This excitation voltage is generated via DA converter which communicates with microprocessor and converts incoming digital data into analog sine waveform. There is precise voltage reference circuitry for both of these converters. PC application’s task is to visualize measured data in meaningful form and to give tools for further work with measured data. It’s programmed in Python language and it has one independent thread which does reading and computing of incoming data and there is also class which builds graphical user interface and plots measured data into live graph.
Detailed record

Interested in being notified about new results for this query?
Subscribe to the RSS feed.
Digital Repository :: Search :: Submit :: Personalize :: Help
Powered by Invenio v1.1.2
Maintained by admin.invenio@techlib.cz
This site is also available in the following languages:
Česky  English