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- Title
IMPROVEMENT GENERATING OF THE TEST SIGNALS FOR DETERMINATION OF THE IMPEDANCE PARAMETERS IN WIDE FREQUENCY RANGE.
- Authors
Melnyk, V. G.; Borschov, P. I.; Beliaev, V. K.; Vasylenko, O. D.; Lameko, O. L.; Slitskiy, O. V.
- Abstract
A brief analysis of modern methods for measuring impedance parameters and error sources that limit their accuracy in a wide range of frequencies is given. An effective way is substantiated to solve the main problem -a significant increase in the errors of the separation of the information signal into quadrature components with increasing frequency. The schemes of construction of the broadband single-phase and multi-phase digital generators of test and reference signals using Johnson's ring counter, which have very small phase errors, as well as the control scheme of the phase ratio of the testing and reference signals are detail considered in the article. The considered structures and principles of operation of the impedance meters with the use of impedance -voltage transformation, of the bridge method with balancing by module and phase of the imbalance signal and their combinations have been developed on their basis.
- Subjects
BROADBAND communication systems; BANDWIDTHS; STREAMING media; INFORMATION technology; GENERATORS (Computer programs)
- Publication
Sensor Electronics & Microsystems Technologies / Sensorna Elektronika i Microsystemni Tekhnologii, 2020, Vol 17, Issue 2, p60
- ISSN
1815-7459
- Publication type
Article
- DOI
10.18524/1815-7459.2020.2.205825