释义 |
Van der Pol oscillator
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 ẍ + ε(-x + ⅓ x 3) + x = 0. |