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Priority to ES366342ApriorityCriticalpatent/ES366342A3/en
Publication of ES366342A3publicationCriticalpatent/ES366342A3/en
Investigating Or Analyzing Materials By The Use Of Electric Means
(AREA)
Abstract
Acoustic high-impedance short circuit detector, characterized in that it comprises a circuit composed of a transmitter whose electrodes are polarized in such a way that, in open circuit, all components thereof are in a resting state, but, when a short circuit occurs between the terminals change the polarity of the base and then the transistor excites an oscillating circuit formed by a coil, a capacitor and a resistance, whose time constant is calculated so that the oscillation occurs in the range of acoustic frequencies. (Machine-translation by Google Translate, not legally binding)
ES366342A1969-04-221969-04-22Acoustic detector of high impedance short circuits. (Machine-translation by Google Translate, not legally binding)
ExpiredES366342A3
(en)