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| The Pilot Comparison Calibration of Vector Receivers in the Frequency Range 5 Hz to 10 kHz |
| CHEN Yi1,2,JIA Guang-hui1,FEI Teng1,Isaev A E3,Matveev A N3 |
1. Hangzhou Applied Acoustics Research Institute, Hangzhou, Zhejiang 311400, China
2. College of Information Science & Electronic Engineering, Zhejiang University, Hangzhou, Zhejiang 310027, China
3. Russian National Research Institute for Physicotechnical and Radio Engineering Measurements, Mendeleevo, Moscow Region 141570, Russia |
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Abstract Using three vector receivers VHS56, VHS90 and KPG-10 as reference vector receivers, the comparison calibration of vector receivers in the frequency range 5Hz to 10kHz was performed between HAARI, China and VNIIFTRI, Russia . The sensitivities of X, Y and Z channels of three vector receivers were calibrated by free-field reciprocity calibration facilities and vertical standing wave tube comparison calibration facilities of HAARI and VNIIFTRI. The calibration results of two participants were consonant with each other. There was only one frequency points deviation between calibration results and reference values slightly exceeding the reference expand uncertainties in all 174 calibration frequency points, and the deviations at most frequency points were less than ±0.5dB, which tested and verified the correction and reliability of the calibration results of vector receivers given by both participants international calibration facilities.
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Received: 10 October 2019
Published: 10 October 2020
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2020, Vol. 41 
