ACOUSTIC RAIN GAUGE

The invention relates to an acoustic rain gauge meant to warn against the danger of going beyond a certain threshold. According to the invention, the acoustic rain gauge comprises a receiving surface (SR) provided with a hole (1) for leaking out the collected water through a tube (2) into a measurin...

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1. Verfasser: TELI C MARIUS
Format: Patent
Sprache:eng ; rum
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Zusammenfassung:The invention relates to an acoustic rain gauge meant to warn against the danger of going beyond a certain threshold. According to the invention, the acoustic rain gauge comprises a receiving surface (SR) provided with a hole (1) for leaking out the collected water through a tube (2) into a measuring tank (R), said measuring tank being manufactured of plastic material and having a resistive transducer (TR) mounted on the inner wall, and a resonant cavity (4) under which there are located some microphones (3) which capture the sound emitted by the raindrops at the impact with the receiving surface (SR), the sound frequency being adjusted by means of some adjusting screws (5). Then the captured sound is amplified by an amplifier (A) and transmitted to an electronic circuit comprising a maximum detector (DM), a programmer (P), an alarming device (DA) and a siren (SA) for acoustic warning when going beyond a certain previously programmed threshold, while an electronic chronometer (C) coupled with an acoustic relay (RA) is used for recording the precipitation duration. Invenţia se referă la un pluviometru sonor, destinat avertizării asupra depăşirii unui anumit prag considerat periculos. Pluviometrul sonor, conform invenţiei, este alcătuit dintr-o suprafaţă de recepţie (SR), prevăzută cu un orificiu (1) pentru scurgerea apei colectate, printr-un tub (2), într-un rezervor de măsură (R), confecţionat din material plastic şi având montat, pe peretele interior, un traductor rezistiv (TR), şi dintr-o cavitate rezonantă (4), sub care sunt amplasate nişte microfoane (3) care captează sunetul emis la impactul picăturilor de ploaie cu suprafaţa de recepţie (SR), frecvenţa sunetului putând fi reglată cu ajutorul unor şuruburi de reglaj (5). Sunetul captat este, apoi, amplificat de un amplificator (A) şi transmis unui circuit electronic, alcătuit dintr-un detector de maxim (DM), un programator (P), un dispozitiv de alarmă (DA) şi o sirenă (SA), pentru avertizarea sonoră asupra depăşirii unui anumit prag dinainte programat, iar pentru înregistrarea duratei precipitaţiilor, se utilizează un cronometru electronic (C), cuplat cu un releu acustic (RA).