Van der Pol oscillator

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Van der Pol oscillator

[′van dər ‚pōl ‚äs·ə‚lād·ər]
(electronics)
A type of relaxation oscillator which has a single pentode tube and an external circuit with a capacitance that causes the device to switch between two values of the screen voltage.
(physics)
A vibrating system that is governed by an equation of the form + ε(-x + ⅓ x 3) + x = 0.
References in periodicals archive ?
The Van der Pol equation has a long history of being used in both the physical and biological sciences.
The Van der pol equation with large value of nonlinearity parameter has been studied by Cartwright and Littlewood in 1945 [10]; they showed that the singular solution exists.
where [mu] is the scalar parameter indicating the strength of the nonlinear damping, and (12) is called the Van der Pol equation in the autonomous regime.
The numerical solution to the Van der Pol equation for various values of [mu] are presented in Figs.
The classical Van der Pol equation (12) depends on the damping coefficient [mu] and the following varying behaviors were obtained.
In the above analysis, a class of analytical study of the Van der Pol equation in the autonomous regime is presented.