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| Description
| - This contribution describes the results of evaluation of data gathered during studying properties of a physical model of new design of electromagnetic micro accelerometer. In this course the fundamental performance parameters of physical model of electromagnetic induction –type micro accelerometer have been estimated. The operation of the device is based on the repulsive interaction of magnetic fields of the pair of the exciting coils with the magnetic field of the eddy currents. The eddy currents are induced by the resulting overall changes of the magnetic induction flux over a surface area whose border forms the loop of the eddy current in the material of the proof mass sphere. The following parameters have been estimated: the instrument measurement range limits as a function of design parameter, a quantitative characteristic of its non-linear static response function, the assessment of achievable accuracy of the instrument, the prospective resolution of the instrument, its noise characteristics and appropriate minimum sampling frequency of digital data acquisition subsystem of the device. The method used to asses all the above mentioned parameters was based on evaluation of precisely estimated frequencies of a pendulum swing under various controlled conditions. The conditions controlled were the amplitude and frequency of the harmonic excitation signal and the mean position of the motion of the proof mass. All necessary measurements have been carried out under the conditions of a vacuum of approximately 1 [Pa]. The apparatus used for the measurements was designed to collect the data of linear position of the proof mass along the common axes of rotational symmetry of the two ferrite cores forming a pair of the excitation coils. The temporal evolution of the position of the proof mass was the primary experimental data gathered. The sampling frequency used to acquire the data was 50 [Hz]. The evaluated results confirmed expected behaviour of the device.
- This contribution describes the results of evaluation of data gathered during studying properties of a physical model of new design of electromagnetic micro accelerometer. In this course the fundamental performance parameters of physical model of electromagnetic induction –type micro accelerometer have been estimated. The operation of the device is based on the repulsive interaction of magnetic fields of the pair of the exciting coils with the magnetic field of the eddy currents. The eddy currents are induced by the resulting overall changes of the magnetic induction flux over a surface area whose border forms the loop of the eddy current in the material of the proof mass sphere. The following parameters have been estimated: the instrument measurement range limits as a function of design parameter, a quantitative characteristic of its non-linear static response function, the assessment of achievable accuracy of the instrument, the prospective resolution of the instrument, its noise characteristics and appropriate minimum sampling frequency of digital data acquisition subsystem of the device. The method used to asses all the above mentioned parameters was based on evaluation of precisely estimated frequencies of a pendulum swing under various controlled conditions. The conditions controlled were the amplitude and frequency of the harmonic excitation signal and the mean position of the motion of the proof mass. All necessary measurements have been carried out under the conditions of a vacuum of approximately 1 [Pa]. The apparatus used for the measurements was designed to collect the data of linear position of the proof mass along the common axes of rotational symmetry of the two ferrite cores forming a pair of the excitation coils. The temporal evolution of the position of the proof mass was the primary experimental data gathered. The sampling frequency used to acquire the data was 50 [Hz]. The evaluated results confirmed expected behaviour of the device. (en)
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| Title
| - Estimation of fundamental performance parameters of physical model of elektromagnetic induction-type micro accelerometer
- Estimation of fundamental performance parameters of physical model of elektromagnetic induction-type micro accelerometer (en)
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| skos:prefLabel
| - Estimation of fundamental performance parameters of physical model of elektromagnetic induction-type micro accelerometer
- Estimation of fundamental performance parameters of physical model of elektromagnetic induction-type micro accelerometer (en)
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| skos:notation
| - RIV/00010669:_____/12:#0001499!RIV13-MPO-00010669
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| http://linked.open...avai/riv/aktivita
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| http://linked.open...avai/riv/aktivity
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| http://linked.open...iv/cisloPeriodika
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| http://linked.open...vai/riv/dodaniDat
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| http://linked.open...aciTvurceVysledku
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| http://linked.open.../riv/druhVysledku
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| http://linked.open...iv/duvernostUdaju
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| http://linked.open...titaPredkladatele
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| http://linked.open...dnocenehoVysledku
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| http://linked.open...ai/riv/idVysledku
| - RIV/00010669:_____/12:#0001499
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| http://linked.open...riv/jazykVysledku
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| http://linked.open.../riv/klicovaSlova
| - micro accelerometer; electromagnetic; induction-type; parameters; measurement range; non-linearity; accuracy; resolution; noise; minimum sampling frequency (en)
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| http://linked.open.../riv/klicoveSlovo
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| http://linked.open...odStatuVydavatele
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| http://linked.open...ontrolniKodProRIV
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| http://linked.open...i/riv/nazevZdroje
| - Czech Aerospace Proceedings / Letecký zpravodaj
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| http://linked.open...in/vavai/riv/obor
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| http://linked.open...ichTvurcuVysledku
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| http://linked.open...cetTvurcuVysledku
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| http://linked.open...UplatneniVysledku
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| http://linked.open...v/svazekPeriodika
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| http://linked.open...iv/tvurceVysledku
| - Zadražil, Vojtěch
- Kraus, Jiří
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| number of pages
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