A data acquisition module based on CompactRIO
- 1. State Key Laboratory of Particle Detection and Electronics, University of Science and Technology of China, Hefei (China)
- 2. Department of Modern Physics, University of Science and Technology of China, Hefei (China)
Description
CompactRIO is widely used in all kinds of embedded control and detection system, but it has no high precision and high integration acquisition module. In order to meet the requirements of high precision sampling applications, we designed a high precision data acquisition module with self-calibration based on CompactRIO. This module is highly integrated. Being of an area of 73.38 mm x 66.04 mm, it realizes 6-channel data acquisition of 24 bit, with the THD of better than -108 dB, and RMS noise of below 1.2 μV. The module can achieve offset calibration and gain calibration of ADC according to an internal high precision voltage source, which improves the amplitude consistency among channels. Test results demonstrate that self-calibration improves the amplitude consistency from 1.5% to 5 x 106. (authors)
Additional details
Publishing Information
- Journal Title
- Nuclear Techniques
- Journal Volume
- 35
- Journal Issue
- 7
- Journal Page Range
- p. 539-542
- ISSN
- 0253-3219
INIS
- Country of Publication
- China
- Country of Input or Organization
- China
- INIS RN
- 45021233
- Subject category
- S46: INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY;
- Descriptors DEI
- ACCURACY; AMPLITUDES; ANALOG-TO-DIGITAL CONVERTERS; CALIBRATION; CONTROL; DATA ACQUISITION; DETECTION; ELECTRIC POTENTIAL; GAIN; NOISE; SAMPLING
- Descriptors DEC
- AMPLIFICATION; ELECTRONIC EQUIPMENT; EQUIPMENT
Optional Information
- Notes
- 5 figs., 1 tabs., 6 refs.