Precision digital signal integrators with accurate synchronization

Batrakov, A.M.; Ilyin, I. V.; Pavlenko, A. V.

doi:10.3103/s8756699015010082

Cited by 5 publications

(4 citation statements)

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“…2 The method of direct digital integration and its problems A scheme that implements the method of direct digital integration is presented in figure 1 [5]. A signal is passed through the scaling amplifier and converted into a digital code with a sampling frequency F S , and then the samples are summed over the time interval defined by the trigger.…”

Section: Jinst 12 P07012mentioning

confidence: 99%

“…Based on the principle discussed in section 3 and the ADC capabilities presented in table 1, two digital integrators VsDC2 and VsDC3 (Volt-second to Digital Converters) were developed [5]. Both devices have a similar structure (figure 6).…”

Section: Digital Integrators Vsdc2 and Vsdc3mentioning

confidence: 99%

“…Data processing, including sample summation procedure and correction of zero and gain, is carried out on-board. The technical details and methods of testing of the VsDC2 and VsDC3 devices can be found in the previously published works [5,19]. In this paper we would like to focus on one parameter.…”

Section: Digital Integrators Vsdc2 and Vsdc3mentioning

confidence: 99%

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Precise digital integration in wide time range: theory and realization

Batrakov

Pavlenko

2017

J. Inst.

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The digital integration method based on using high-speed precision analog-to-digital converters (ADC) has become widely used over the recent years. The paper analyzes the limitations of this method that are caused by the signal properties, ADC sampling rate and noise spectral density of the ADC signal path. This analysis allowed creating digital integrators with accurate synchronization and achieving an integration error of less than 10 −5 in the time range from microseconds to tens of seconds. The structure of the integrator is described and its basic parameters are presented. The possibilities of different ADC chips in terms of their applicability to digital integrators are discussed. A comparison with other integrating devices is presented.

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Section: Jinst 12 P07012mentioning

confidence: 99%

Section: Digital Integrators Vsdc2 and Vsdc3mentioning

confidence: 99%

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Precise digital integration in wide time range: theory and realization

Batrakov

Pavlenko

2017

J. Inst.

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“…The resulting non-repeatability of the integral (magnetic field) at the end of the acceleration cycle is shown in figure 9. It was obtained by integrating the output signal of the tester with the help of the digital integrator VsDC3 [9]. VsDC3 is a VME unit intended for high-precision integration with accuracy better than 10 −5 but it doesn't allow to obtain results in real-time.…”

Section: Testermentioning

confidence: 99%

Digital LLRF controller for NICA booster

et al. 2016

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The digital LLRF controller based on embedded microcontroller for the booster of the Dubna superconducting accelerator complex NICA is presented. It allows setting the frequency in accordance with the magnetic field value in the 0.5-5 MHz range with an inaccuracy ±110 Hz. A novel method of frequency calculation based on the derivative is proposed. The specialized tester module allows tuning up and checking the RF system during comissioning and operation.

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