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The concept of the multi-frequency conditioning system of the individual inductive loop sensor signal, with the separation of impedance components was presented in the hereby paper. Simulation investigations concerning dynamic states in the system excited by a step change of the sensor impedance parameters, were performed. The system behaviour in the presence of disturbances — induced in the sensor...
This paper presents the state of currently used technological solutions employed in research regarding the use of inductive loop sensor (IL) for vehicle axle detection. Inductive loop sensors are less expensive and more durable than other sensors available on the market. What is more, they are the only type of sensor that enables lifted axle detection. System with such sensors may be used for measurement...
In every country, road networks are one of the largest and highly expensive investment. Equally expensive are the consequences of not ensuring adequate road safety. This creates the need for an efficient and automatic system for the detection of overloaded vehicles [17]. One of the tools designed to measure the weight and individual axle loads of vehicles are the systems weighing vehicles in motion...
This chapter contains sections titled:
Introduction
MS‐WIM Site Design
MS‐WIM System Architecture
Data Processing Algorithms
MS‐WIM System Calibration
Accuracy Analysis
Conclusions
References
This paper describes temperature influence on the uncertainty of weighing results in Weigh in Motion systems (WIM). The analysis bases on the long-term investigation of the WIM site, as well as on simulation tests conducted on sensor and conditioning circuit models. The drawn conclusions suggest, that this uncertainty may be significantly reduced if a proper temperature correction algorithm is applied.
This article presents the findings of model and field research into narrow inductive loop used as vehicle wheels detector in normal traffic conditions. The efficiency of the solution was compared with that of strip, polymeric piezoelectric detectors. The findings confirmed that narrow inductive loops can be successfully applied as wheel detectors.
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