A new method of inductive sensors impedance measurement applied to the identification of vehicle parameters

• Autorzy: Marszałek Z. , Sroka R. , Stencel M.
• Języki publikacji: EN

Abstrakty

EN

Inductive loop sensors are widely used for detection of presence, measurement of parameters as well as classification of vehicles. Vehicle classification may be performed based on their magnetic profiles. The magnetic profile is a signal which is proportional to the resultant of an impedance change of the sensor, caused by the measured object (the changes are minor - of the order of 1%). Generator and bridge circuits are most commonly used as conditioning circuits for such sensors. As a result we can obtain one output signal proportional to total changes of sensor parameters (R and L). In this paper, a modified bridge circuit that allows independent measurement of the components (R and L) of the sensor's impedance, has been proposed. With that provided, it is possible to receive broader information on the object, which allows higher classification resolution. This paper provides the concept of a circuit, model testing results, processing algorithms used and the test results of a real circuit.

Słowa kluczowe

EN

inductive loop sensor; substitute parameters; magnetic profile; measurement of traffic parameters

• Wydawca: Komitet Metrologii i Aparatury Naukowej PAN
• Czasopismo: Metrology and Measurement Systems
• Rocznik: 2011
• Tom: Vol. 18, nr 1
• Strony: 69--76
• Opis fizyczny: Bibliogr. 11 poz., rys., wykr.

Twórcy

autor

Marszałek Z.

autor

Sroka R.

autor

Stencel M.

• AGH - University of Science and Technology, Department of Measurement and Instrumentation, Al. Mickiewicza 30, 30-059 Cracow, Poland,

Bibliografia

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