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V. PROTOTYPE

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V. PROTOTYPE

V. PROTOTYPE - раздел Образование, Automotive FDS resolution improvement by using the principle of rational approximation Here, A Circuit Was Built In Order To Test The Method Present...

Here, a circuit was built in order to test the method presented in this paper. Two frequency generators were used to generate f₀ and f_x. The prototype circuit is shown in Fig. 9.

Standard frequency, f₀

Desired frequency, f_X

Standard frequency counter

Desired frequency counter

Display

Main circuit.

Fig.9. Frequency counter prototype test circuit

There are four circuit boards: two counters, a main circuit and a display. The main circuit board is the control of the entire to the system. It contains the buttons for starting and stopping besides of the connections for the frequencies f₀ and f_x conjuncted at the AND-gate.

The circuit was tested in a wide range of frequencies and the difference between the value measured by an oscilloscope and the one measured by the prototype is very small, see Fig. 10a and Fig. 10b respectively. The periods quantity of the prototype was 60 (Fig. 10b).

Fig.10. Measured values: a) Oscilloscope; b) Prototype circuit

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Automotive FDS resolution improvement by using the principle of rational approximation

O Yu Sergiyenko Member IEEE D Hern aacute ndez B V V Tyrsa P L A Rosas Mendez W Hernandez Member IEEE J I Nieto Hipolito O... Abstract In this paper a novel method of frequency counting of signals coming from automotive sensors is presented...

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Все темы данного раздела:

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