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Estimation of the random error in measuring the initial voltage of the sensors in the system «Vernier sensor adapter – computer interface»

Suranov A. Ya.  (Altay State University Department of Radio Physics and Theoretical Physics)

sensors connected to various computer interfaces, both directly and through appropriate adapters, are presented. The noise of the analog inputs of the terminal connector and the BTA connectors of the SensorDAQ interface, as well as the noise of the myDAQ and myRIO interfaces of the National Instruments company when connecting the sensors via the Vernier adapter were evaluated. In the signal of some sensors, periodic interference with a frequency of 50 Hz was detected. Recommendations for suppressing this interference are given and their effectiveness is shown. A comparison of the sensor signals from the output of the listed interfaces to the signal of the same sensors registered with the RedBoard board and the Vernier Sensor Interface Shield adapter is carried out. It is shown that there is a significant shift in the signal voltage for this board.

Keywords:Vernier sensors, myDAQ and myRIO interfaces, adapter, periodic interference, RedBoard rate, offset calibration

 

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Citation link:
Suranov A. Y. Estimation of the random error in measuring the initial voltage of the sensors in the system «Vernier sensor adapter – computer interface» // Современная наука: актуальные проблемы теории и практики. Серия: Естественные и Технические Науки. -2018. -№08. -С. 72-76
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