Szczegóły publikacji
Opis bibliograficzny
Maxwell-Wien bridge with vector voltmeter system for measurement small and rapid changes in inductive-loop sensor impedance components / Zbigniew MARSZAŁEK // Measurement ; ISSN 0263-2241. — 2018 — vol. 121, s. 57–61. — Bibliogr. s. 61, Abstr. — Publikacja dostępna online od: 2018-03-21
Autor
Słowa kluczowe
Dane bibliometryczne
| ID BaDAP | 113084 |
|---|---|
| Data dodania do BaDAP | 2018-04-20 |
| Tekst źródłowy | URL |
| DOI | 10.1016/j.measurement.2018.02.038 |
| Rok publikacji | 2018 |
| Typ publikacji | artykuł w czasopiśmie |
| Otwarty dostęp |  |
| Czasopismo/seria | Measurement |
Abstract
The paper presents a low-cost electronics system for impedance measurement of an inductive-loop sensor as well as small, rapid changes in impedance components. The idea of the system is based on the adaptation of a vector voltmeter instead of the Maxwell-Wien bridge balance indicator and supporting the system with a microcontroller. The proposed procedures, based on the complex voltage of bridge unbalance, allow to calculate the resistance that can balance the bridge in a short time. This, in turn, allows to measure the sensor impedance components, identically, as in the case of a well-known balanced bridge method. However, what is original in this work, is that measurements can be taken in a state of bridge imbalance and with high relative accuracy to small changes in sensor impedance.
